阅读说明：本技术 一种生活污水处理设备及其生活污水处理设备的处理方法 (Domestic sewage treatment equipment and treatment method thereof ) 是由 朱兆明 于 2019-10-09 设计创作，主要内容包括：本发明公开了一种生活污水处理设备及其生活污水处理设备的处理方法：包括有溶料腔、电解腔和降解箱,所述溶料腔与电解腔分别设置在降解箱内,且电解腔的进液口设置在溶料腔内,所述电解腔与降解箱连通；所述电解腔内设置有电解沉降装置,电解沉降装置将溶料腔溶料后的污水进行电解净化处理。所述降解箱内设置有生物降解槽结构,所述生物降解槽结构内设置有厌氧微生物,厌氧微生物降解污水中的有机污染物。本发明通过溶料腔中的化学药品除去生活污水中绝大部分重金属离子；同时通过未反应完的化学药品增强电解腔中的电解反应,使得生活污水在电解腔中电解沉降更彻底,同时在通过微生物降解生活污水有机污染物,最终使得生活污水的净化更彻底。(The invention discloses a domestic sewage treatment device and a treatment method thereof, wherein the treatment method comprises the following steps: the material dissolving device comprises a material dissolving cavity, an electrolysis cavity and a degradation box, wherein the material dissolving cavity and the electrolysis cavity are respectively arranged in the degradation box, a liquid inlet of the electrolysis cavity is arranged in the material dissolving cavity, and the electrolysis cavity is communicated with the degradation box; and an electrolytic settling device is arranged in the electrolytic cavity, and the electrolytic settling device carries out electrolytic purification treatment on the sewage after the material is dissolved in the material dissolving cavity. A biodegradation tank structure is arranged in the degradation box, and anaerobic microorganisms are arranged in the biodegradation tank structure and degrade organic pollutants in sewage. The invention removes most heavy metal ions in the domestic sewage by chemicals in the solvent cavity; meanwhile, the electrolytic reaction in the electrolytic cavity is enhanced by unreacted chemicals, so that the electrolytic sedimentation of the domestic sewage in the electrolytic cavity is more thorough, and the organic pollutants in the domestic sewage are degraded by microorganisms, so that the domestic sewage is purified more thoroughly.)

1. The utility model provides a domestic sewage treatment equipment which characterized in that: the device comprises a solution cavity (1), an electrolysis cavity (2) and a degradation box (3), wherein the solution cavity (1) and the electrolysis cavity (2) are respectively arranged in the degradation box (3), a liquid inlet of the electrolysis cavity (2) is arranged in the solution cavity (1), and a liquid outlet of the electrolysis cavity (3) is communicated with the degradation box (3); a sewage inlet pipe (14) is arranged at the top of the material dissolving cavity (1); an electrolytic settling device (20) is arranged in the electrolytic cavity (2), and the electrolytic settling device (20) is used for carrying out electrolytic purification treatment on the sewage after the material is dissolved in the material dissolving cavity (1); a biodegradation tank structure (30) is arranged in the degradation box (3), anaerobic microorganisms are arranged in the biodegradation tank structure (30), and organic pollutants in sewage are degraded through the anaerobic microorganisms.

2. The domestic sewage treatment apparatus according to claim 1, wherein: a plurality of stirring structures (10) are arranged in the material dissolving cavity (1), the stirring structures (10) are arranged along the height direction of the material dissolving cavity (1), and the liquid medicine and the sewage in the material dissolving cavity (1) are uniformly stirred and mixed through the stirring structures (10); the stirring structure (10) comprises a stirring blade (101), a rotating rod (102) and a stirring motor (103), and the stirring motor (103) is arranged in a groove at the outer bottom of the degradation box (3); the bottom end of the rotating rod (102) extends out of the material dissolving cavity (1) and is arranged on a rotating shaft of the stirring motor (103) in a transmission mode, the upper end part of the rotating rod (102) is arranged in the material dissolving cavity (1), a plurality of stirring blades (101) are sequentially arranged downwards above the rotating rod (102) along the axis direction of the rotating rod, and the rotating rod (102) drives the stirring blades (101) to rotate along the horizontal direction; the stirring blades (101) are arranged in a straight sheet shape, and the blade surfaces of the stirring blades (101) are perpendicular to the rotation direction of the stirring blades; a plurality of overflow holes (104) are uniformly arranged on the surface of the stirring blade (101).

3. The domestic sewage treatment apparatus according to claim 2, wherein: the top of the dissolving cavity (1) is also provided with a first medicine inlet pipe (11) and a second medicine inlet pipe (12), and the feed end of the first medicine inlet pipe (11) and the feed end of the second medicine inlet pipe (12) are respectively inserted into the dissolving cavity (1) from the top thereof; a plug (15) is arranged at the joint of the first liquid inlet pipe (11), the second medicine inlet pipe (12) and the top of the material dissolving cavity (1); the feeding end of the first feeding pipe (11) and the feeding end of the second feeding pipe (12) are respectively provided with a plurality of discharging holes (13) on the pipe wall in the material dissolving cavity (1), and the discharging holes (13) are arranged along the height direction of the material dissolving cavity (13); the materials are uniformly discharged into the material dissolving cavity (1) through a discharge hole (13) on the first medicine inlet pipe (11) and a discharge hole (13) on the second medicine inlet pipe (12).

4. The domestic sewage treatment apparatus according to claim 1, wherein: the top of the electrolysis cavity (2) is provided with a liquid inlet baffle (21), and the liquid inlet baffle (21) is blocked at a liquid inlet of the electrolysis cavity (1); an upright post (22) is arranged in the middle of the inside of the electrolysis cavity (2), a telescopic device (23) is arranged in the upright post (22), the top of a telescopic rod of the telescopic device (23) is fixedly arranged on the lower surface of the liquid inlet baffle plate (21), and the telescopic rod of the telescopic device (23) is lifted up, so that the liquid inlet baffle plate (21) is lifted away from a liquid inlet of the electrolysis cavity (2); an inclined diversion trench (24) is arranged on the inner side of the liquid inlet of the electrolysis cavity (2).

5. The domestic sewage treatment apparatus according to claim 4, wherein: an electrolytic settling device (20) is arranged in the electrolytic cavity (2), the electrolytic settling device (20) comprises a plurality of anode electrolytic plates (201) and a plurality of cathode electrolytic plates (202), the anode electrolytic plates (201) are wrapped on the cathode electrolytic plates (202), and the positive electrode plates (201) and the negative electrode plates (202) are arranged in a one-to-one correspondence manner; an electrolysis channel (203) is formed between the anode electrolytic plate (201) and the cathode electrolytic plate (202) at intervals; the electrolysis channel (203) is arranged in the electrolysis cavity (1) in the vertical direction, and sewage entering from a liquid inlet at the top of the electrolysis cavity (2) flows into the electrolysis channel (203) and flows out after electrolysis.

6. The domestic sewage treatment apparatus according to claim 1, wherein: a filtering structure (31) is arranged in the degradation box (3), and the filtering structure (31) separates the interior of the degradation box (3) into an upper degradation cavity (32) and a lower degradation cavity (33); a liquid outlet is formed in the bottom of the electrolysis cavity (2), and the electrolysis cavity (2) is communicated with the lower descending cavity (3); a biodegradation groove structure (30) is uniformly and circumferentially arranged in the upper degradation cavity (32); sewage is subsided in subside chamber (33) down and is filtered the back and enter into last degradation chamber (32) through filtering structure (31), along upward movement and inside through biodegradable groove structure (30) in last degradation chamber (32), it is provided with liquid outlet pipe way (36) to go up degradation chamber (33) top.

7. The domestic sewage treatment apparatus according to claim 6, wherein: baffles (34) are arranged in the lower settling chamber (33) along the sewage flow direction, and the baffles (34) are arranged in the lower settling chamber (1) in a staggered manner; one end of the baffle (34) is arranged on the inner side wall of the lower sedimentation cavity (33), and the other end of the baffle is arranged in a suspended manner; the baffle (34) is obliquely arranged in the opposite direction of sewage flow; the suspended end of the baffle (34) is provided with a deflecting plate (35), the deflecting plate (35) is obliquely arranged along the reverse direction of sewage flow, and the inclination angle of the deflecting plate (35) is larger than that of the baffle (34).

8. The domestic sewage treatment apparatus according to claim 6, wherein: the filtering structure (31) comprises a filtering material box body (310) which penetrates through the filtering structure from top to bottom, a first filtering material layer (311), a second filtering material layer (312) and a third filtering material layer (313) are sequentially arranged in the filtering material box body (310) from bottom to top, and the sizes of filtering materials of the first filtering material layer (311), the second filtering material layer (312) and the third filtering material layer (313) are sequentially reduced.

9. The domestic sewage treatment apparatus according to claim 6, wherein: the biodegradation tank structure (30) comprises a plurality of biodegradation tank units (301) and a fixing rod (302), wherein the biodegradation tank units (301) are sequentially connected in series along the length direction of the fixing rod (302); the bottom of the biodegradation tank unit (301) is arranged in a frustum shape, and a plurality of tank body liquid inlets (3010) are arranged on the inclined surface of the bottom of the biodegradation tank unit; a plurality of layers of microorganism fixing plates (3011) are arranged in the biodegradation tank unit (301) from bottom to top, liquid through holes (3012) are formed in the microorganism fixing plates (3011), and the liquid through holes (3012) of the adjacent microorganism fixing plates (3011) are arranged in a staggered mode; the sewage enters the biodegradation tank unit (301) from the liquid inlet, is sequentially degraded and oxidized by microorganisms on the microorganism fixing plate (3011) and flows out from the liquid outlet (3013) of the tank body at the top of the biodegradation tank unit.

10. A treatment method of a domestic sewage treatment apparatus according to any one of claims 1 to 9, characterized in that:

s1, injecting domestic sewage into the solution cavity (1) through the liquid inlet pipe (14); a ferrous chloride solution and a hydrogen peroxide solution are introduced into the material dissolving cavity from the first medicine inlet pipe (11) and the second medicine inlet pipe (12), wherein the mass fraction of ferrous chloride is 2-4%, and the mass fraction of hydrogen peroxide is 5-8%; starting a stirring motor (103), and driving a stirring blade (101) in the material dissolving cavity (1) to rotate through the stirring motor (103), so that the ferrous chloride solution and the hydrogen peroxide solution are fully and uniformly mixed in the domestic sewage; so that the ferrous chloride solution and the hydrogen peroxide solution generate oxidation-reduction reaction in the domestic sewage, and various heavy metal ions in the domestic sewage are removed;

s2, controlling a telescopic rod of the telescopic device (23) to stretch out, and pushing the liquid inlet baffle plate (21) away from a liquid inlet of the electrolysis cavity (2), so that the domestic sewage in the material dissolving cavity (1) enters an electrolysis channel (203) in the electrolysis cavity (2); electrifying an anode electrolytic plate (201) and a cathode electrolytic plate (202) of the electrolytic settling device (20), wherein the anode electrolytic plate (201) is made of iron metal, the anode electrolytic plate (201) generates iron ions under the action of direct current, the iron ions are hydrolyzed in domestic sewage to generate hydroxide, and suspended matters and emulsion in the sewage are adsorbed under the action of an adsorption bridge to form flocculent substance coagulation and precipitation;

s3, domestic sewage in the electrolysis cavity (2) enters the lower sedimentation cavity (33) through the communicating pipeline, large granular flocculent sediments in the domestic sewage are settled in the lower sedimentation cavity (33), baffles (34) are arranged in the lower sedimentation cavity (33) in a staggered mode, and the large granular flocculent sediments are gradually settled at the bottom of the lower sedimentation cavity (33) through the blocking effect of the baffles (34) on the large granular flocculent sediments; and the large granular flocculent precipitate is blocked and filtered by a filter material layer in the filter structure (31);

s4, the domestic sewage enters the upper degradation cavity (32) through the filtering structure (31), the domestic sewage sequentially passes through the biodegradation tank unit (301), and is dissolved by the anaerobic microorganisms in the biodegradation tank unit (301) and extracellular hydrolase secreted by the anaerobic microorganisms, so that the organic substances in the domestic sewage are dissolved, and enter cells through cell walls for metabolic biochemical reaction. Under the catalysis of hydrolase, complex polysaccharides in the domestic sewage are hydrolyzed into monosaccharides, proteins are hydrolyzed into peptides and amino acids, and fats are hydrolyzed into glycerol and fatty acids; finally, the organic pollutants in the living materials are hydrolyzed.

Technical Field

The invention relates to the field of domestic sewage treatment, in particular to domestic sewage treatment equipment and a treatment method of the domestic sewage treatment equipment.

Background

The domestic sewage is mainly the discharged water produced by various kitchen water, washing water and toilet water used in human life, and is mostly non-toxic inorganic salts. The sewage generated in the human life process is one of the main pollution sources of the water body. Mainly feces and washing sewage. The daily discharge of domestic sewage of each person in a city is 150-400L, and the quantity of the domestic sewage is closely related to the living standard. The domestic sewage contains a large amount of organic matters, such as cellulose, starch, saccharides, fat protein and the like; also frequently contain pathogenic bacteria, viruses and parasite eggs; chlorides, sulfates, phosphates, bicarbonates, and sodium, potassium, calcium, magnesium, and the like, of inorganic salts. The general characteristics are high content of nitrogen, sulfur and phosphorus.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a domestic sewage treatment device and a treatment method of the domestic sewage treatment device, which can solve the problems.

The technical scheme is as follows: in order to achieve the above object, a domestic sewage treatment apparatus of the present invention: the electrolytic cell comprises a solution cavity, an electrolysis cavity and a degradation box, wherein the solution cavity and the electrolysis cavity are respectively arranged in the degradation box, a liquid inlet of the electrolysis cavity is arranged in the solution cavity, and a liquid outlet of the electrolysis cavity is communicated with the degradation box; a sewage inlet pipe is arranged at the top of the material dissolving cavity; an electrolytic settling device is arranged in the electrolytic cavity, and the electrolytic settling device is used for carrying out electrolytic purification treatment on the sewage after the material is dissolved in the material dissolving cavity; a biodegradation tank structure is arranged in the degradation box, anaerobic microorganisms are arranged in the biodegradation tank structure, and organic pollutants in the sewage are degraded through the anaerobic microorganisms; carrying out color removal treatment on the domestic sewage by chemicals in the material dissolving cavity, and removing most harmful heavy metal ions in the domestic sewage; meanwhile, the electrolytic reaction in the electrolytic cavity is enhanced by unreacted chemicals, so that the electrolytic sedimentation of the domestic sewage in the electrolytic cavity is more thorough, and the organic pollutants in the domestic sewage are degraded by microorganisms, so that the domestic sewage is purified more thoroughly.

Furthermore, a plurality of stirring structures are arranged in the material dissolving cavity, the stirring structures are arranged along the height direction of the material dissolving cavity, and the liquid medicine and the sewage in the material dissolving cavity are uniformly stirred and mixed through the stirring structures; the stirring structure comprises stirring blades, a rotating rod and a stirring motor, and the stirring motor is arranged in a groove at the bottom outside the degradation box; the bottom end of the rotating rod extends out of the material dissolving cavity and is arranged on a rotating shaft of the stirring motor in a transmission manner, the upper end part of the rotating rod is arranged in the material dissolving cavity, a plurality of stirring blades are sequentially arranged downwards above the rotating rod along the axis direction of the rotating rod, and the rotating rod drives the stirring blades to rotate along the horizontal direction; the stirring blades are arranged in a straight sheet shape, and are arranged on the blade surfaces of the stirring blades in a direction perpendicular to the rotation direction of the stirring blades; a plurality of overflow holes are uniformly formed in the blade surface of the stirring blade; chemical and domestic sewage injected into the solvent cavity are fully and uniformly mixed through the stirring blades, and heavy metal ions in the domestic sewage are replaced by the chemical, so that toxic heavy metal in the sewage is oxidized into non-toxic or less-toxic heavy metal ions or is precipitated through interaction among the ions.

Furthermore, the top of the dissolving cavity is also provided with a first medicine inlet pipe and a second medicine inlet pipe, and the feed end of the first medicine inlet pipe and the feed end of the second medicine inlet pipe are respectively inserted into the dissolving cavity from the top thereof; a plug is arranged at the joint of the first liquid inlet pipe, the second medicine inlet pipe and the top of the material dissolving cavity; the feeding end of the first feeding pipe and the feeding end of the second feeding pipe are respectively provided with a plurality of discharging holes on the pipe wall in the material dissolving cavity, and the discharging holes are arranged along the height direction of the material dissolving cavity; through the discharge hole on the first medicine pipe of advancing and the discharge hole on the second medicine pipe of advancing to the even ejection of compact of dissolving in the material intracavity, set up like this and be convenient for ferrous chloride solution and hydrogen peroxide solution enter into the reaction of dissolving in the material chamber.

Furthermore, a liquid inlet baffle is arranged at the top of the electrolysis cavity and is blocked at a liquid inlet of the electrolysis cavity; a vertical column is arranged in the middle of the inside of the electrolysis cavity, a telescopic device is arranged in the vertical column, the top of a telescopic rod of the telescopic device is fixedly arranged on the lower surface of the liquid inlet baffle plate, and the liquid inlet baffle plate is lifted up through the telescopic rod of the telescopic device so as to be separated from a liquid inlet of the electrolysis cavity; an inclined diversion trench is arranged on the inner side of the liquid inlet of the electrolysis cavity; the arrangement is convenient for effectively controlling the domestic sewage entering the electrolysis cavity.

Furthermore, an electrolytic settling device is arranged in the electrolytic cavity and comprises a plurality of anode electrolytic plates and a plurality of cathode electrolytic plates, the anode electrolytic plates are wrapped with the cathode electrolytic plates, and the positive electrode plates and the negative electrode plates are arranged in a one-to-one correspondence manner; an electrolytic channel is formed between the anode electrolytic plate and the cathode electrolytic plate at intervals; the electrolysis channel is arranged in the electrolysis cavity in the vertical direction, and sewage entering from a liquid inlet at the top of the electrolysis cavity flows into the electrolysis channel to be electrolyzed and then flows out; the domestic sewage enters the electrolytic channel to serve as electrolyte, electrolytic reaction is carried out in the electrolytic channel to generate flocculating agent, and insoluble substances in the domestic sewage are subjected to flocculation precipitation through the flocculating agent.

Furthermore, a filtering structure is arranged in the degradation box, and the filtering structure separates the interior of the degradation box into an upper degradation cavity and a lower degradation cavity; a liquid outlet is formed in the bottom of the electrolysis cavity, and the electrolysis cavity is communicated with the lower sedimentation cavity; a biodegradation groove structure is uniformly and circumferentially arranged in the upper degradation cavity; sewage is filtered by a filtering structure after being settled in the lower settling cavity, enters the upper degradation cavity, moves upwards in the upper degradation cavity and passes through the interior of the biodegradation tank structure, and a liquid outlet pipeline is arranged at the top of the upper degradation cavity; the domestic sewage and the flocculate therein are led into a lower settling cavity for standing and settling, so that large granular flocculent precipitate is settled at the bottom of the lower settling cavity and is separated from the domestic sewage and then is degraded by microorganisms.

Furthermore, baffles are arranged in the lower settling chamber along the flowing direction of the sewage, and the baffles are arranged in the lower settling chamber in a staggered manner; one end of the baffle is arranged on the inner side wall of the lower sedimentation cavity, and the other end of the baffle is suspended; the baffle is arranged in an inclined way in the opposite direction of sewage flow; a folding plate is arranged at the suspended end of the baffle plate, the folding plate is obliquely arranged along the direction opposite to the flowing direction of sewage, and the inclination angle of the folding plate is larger than that of the baffle plate; shelter from the flocculent precipitate of large granule through baffle and folding to the board for the flocculent precipitate of large granule is subsided the chamber under and is separated with domestic sewage, more is favorable to the flocculent precipitate of large granule to subside chamber bottom deposit under.

Furthermore, the filtering structure comprises a filtering material box body which penetrates through the filtering material box body from top to bottom, a first filtering material layer, a second filtering material layer and a third filtering material layer are sequentially arranged in the filtering material box body from bottom to top, and the sizes of filtering materials of the first filtering material layer, the second filtering material layer and the third filtering material layer are sequentially reduced; thus, the filtering structure has better filtering effect on the granular floccules in the domestic sewage.

Furthermore, the biodegradable tank structure comprises a plurality of biodegradable tank units and a fixed rod, wherein the biodegradable tank units are sequentially connected in series along the length direction of the fixed rod; the bottom of the biodegradation tank unit is arranged in a frustum shape, and a plurality of tank body liquid inlets are formed in the inclined surface of the bottom of the biodegradation tank unit; a plurality of layers of microorganism fixing plates are arranged in the biodegradation tank unit from bottom to top, liquid through holes are formed in the microorganism fixing plates, and the liquid through holes of the adjacent microorganism fixing plates are arranged in a staggered mode; the sewage enters the biodegradation tank unit from the liquid inlet, is sequentially degraded and oxidized by the microorganisms on the microorganism fixing plate and then flows out from the liquid outlet of the tank body at the top of the biodegradation tank unit.

A treatment method of domestic sewage treatment equipment comprises the following steps:

s1, injecting domestic sewage into the material dissolving cavity through the liquid inlet pipe; introducing a ferrous chloride solution and a hydrogen peroxide solution into the dissolving cavity from the first medicine inlet pipe and the second medicine inlet pipe, wherein the mass fraction of ferrous chloride is 2-4%, and the mass fraction of hydrogen peroxide is 5-8%; starting a stirring motor, and driving a stirring blade in the dissolving cavity to rotate through the stirring motor, so that the ferrous chloride solution and the hydrogen peroxide solution are fully and uniformly mixed in the domestic sewage; so that the ferrous chloride solution and the hydrogen peroxide solution generate oxidation-reduction reaction in the domestic sewage, and various heavy metal ions in the domestic sewage are removed;

s2, controlling the telescopic rod of the telescopic device to stretch out, and pushing the liquid inlet baffle plate away from the liquid inlet of the electrolysis cavity, so that the domestic sewage in the solution cavity enters the electrolysis channel in the electrolysis cavity; electrifying an anode electrolytic plate and a cathode electrolytic plate of the electrolytic settling device, wherein the anode electrolytic plate is made of iron metal, the anode electrolytic plate generates iron ions under the action of direct current, the iron ions are subjected to hydrolysis reaction in the domestic sewage to generate hydroxide, and suspended matters and emulsion in the sewage are adsorbed under the action of an adsorption bridge to form flocculent substance coagulation and precipitation;

s3, domestic sewage in the electrolytic cavity enters the lower sedimentation cavity through the communicating pipeline, large granular flocculent sediments in the domestic sewage are settled in the lower sedimentation cavity, baffles are arranged in the lower sedimentation cavity in a staggered mode, and the large granular flocculent sediments are gradually settled at the bottom of the lower sedimentation cavity through the blocking effect of the baffles on the large granular flocculent sediments; and the large granular flocculent precipitate is blocked and filtered by a filter material layer in the filter structure;

and S4, enabling the domestic sewage to enter the upper degradation cavity through the filtering structure, enabling the domestic sewage to sequentially pass through the biodegradation tank unit, dissolving organic substances in the domestic sewage by using extracellular hydrolase secreted by anaerobic microorganisms and anaerobic bacteria in the biodegradation tank unit, and enabling the domestic sewage to enter cells through cell walls for metabolic biochemical reaction. Under the catalysis of hydrolase, complex polysaccharides in the domestic sewage are hydrolyzed into monosaccharides, proteins are hydrolyzed into peptides and amino acids, and fats are hydrolyzed into glycerol and fatty acids; finally, the organic pollutants in the living materials are hydrolyzed.

Has the advantages that: according to the domestic sewage treatment equipment and the treatment method thereof, the domestic sewage is subjected to color removal treatment by chemicals in the material dissolving cavity, and toxic heavy metal ions in the domestic sewage are oxidized into harmless heavy metal ions through an oxidation-reduction reaction or the heavy metal ions are precipitated through interaction among ions, so that the aim of removing most heavy metal ions in the domestic sewage is fulfilled; meanwhile, the electrolytic reaction in the electrolytic cavity is enhanced by unreacted chemicals, so that the domestic sewage is more thoroughly electrolyzed and settled in the electrolytic cavity; meanwhile, organic pollutants in the domestic sewage are degraded through microorganisms, and the organic pollutants are decomposed into inorganic matters through microbial enzymes, so that the domestic sewage is purified more thoroughly.

Drawings

FIG. 1 is a schematic view of the external structure of a sewage treatment apparatus of the present invention;

FIG. 2 is a schematic sectional view of a three-dimensional portion of the sewage treatment apparatus of the present invention;

FIG. 3 is a schematic view of the internal overall cross-sectional structure of the sewage treatment apparatus of the present invention;

FIG. 4 is a schematic sectional view of an internal portion of the sewage treatment apparatus of the present invention;

FIG. 5 is a schematic view of a sectional structure of a material dissolving chamber of the sewage treatment apparatus of the present invention;

FIG. 6 is a schematic structural view of a stirring rod and a stirring blade of the sewage treatment apparatus of the present invention;

FIG. 7 is a schematic view of a cross-sectional structure of an electrolytic chamber of the sewage treatment apparatus of the present invention;

FIG. 8 is an enlarged partial schematic view of FIG. 3 of the present invention;

FIG. 9 is a schematic view of a biodegradation tank unit of the sewage treatment apparatus of the present invention;

FIG. 10 is a schematic view showing the internal cross-sectional structure of a biodegradation tank unit of the sewage treatment apparatus of the present invention;

FIG. 11 is a schematic view of a partial cross-sectional structure of a filter structure of a sewage treatment apparatus according to the present invention;

FIG. 12 is an electrolytic reaction equation in an electrolytic chamber of the sewage treatment apparatus of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A domestic sewage treatment device as shown in the attached figures 1-12: the device comprises a dissolving cavity 1, an electrolysis cavity 2 and a degradation box 3, wherein the dissolving cavity 1 and the electrolysis cavity 2 are respectively arranged in the degradation box 3, a liquid inlet of the electrolysis cavity 2 is arranged in the dissolving cavity 1, and a liquid outlet of the electrolysis cavity 3 is communicated with the degradation box 3; a sewage inlet pipe 14 is arranged at the top of the dissolving cavity 1; a first medicine inlet pipe 11 and a second medicine inlet pipe 12 are further arranged at the top of the dissolving cavity 1, and the feed end of the first medicine inlet pipe 11 and the feed end of the second medicine inlet pipe 12 are respectively inserted into the dissolving cavity 1 from the top thereof; chemical medicines are introduced into the dissolving cavity 1 through the first medicine inlet pipe 11 and the second medicine inlet pipe 12 to carry out color removal treatment on the domestic sewage, and most harmful heavy metal ions in the domestic sewage are removed; an electrolytic settling device 20 is arranged in the electrolytic cavity 2, the electrolytic settling device 20 is used for carrying out electrolytic purification treatment on the sewage after the material is dissolved in the material dissolving cavity 1, and meanwhile, chemicals which do not fully react in the material dissolving cavity 1 play a role in enhancing the electrolytic reaction in the electrolytic cavity 2, so that the electrolytic settling of the domestic sewage in the electrolytic cavity 2 is more thorough; a biodegradation tank structure 30 is arranged in the degradation tank 3, anaerobic microorganisms are arranged in the biodegradation tank structure 30, and organic pollutants in sewage are degraded through the anaerobic microorganisms.

A plurality of stirring structures 10 are arranged in the material dissolving cavity 1, the stirring structures 10 are arranged along the height direction of the material dissolving cavity 1, and the liquid medicine and the sewage in the material dissolving cavity 1 are uniformly stirred by the stirring structures 10; the stirring structure 10 comprises a stirring blade 101, a rotating rod 102 and a stirring motor 103, wherein the stirring motor 103 is arranged in a groove at the outer bottom of the degradation box 3; the bottom end of the rotating rod 102 extends out of the material dissolving cavity 1 and is arranged on a rotating shaft of the stirring motor 103 in a transmission manner, the upper end part of the rotating rod 102 is arranged in the material dissolving cavity 1, a plurality of stirring blades 101 are sequentially arranged downwards above the rotating rod 102 along the axial direction of the rotating rod 102, and the rotating rod 102 drives the stirring blades 101 to rotate along the horizontal direction; the stirring blades 101 are arranged in a straight sheet shape, and are arranged on the surfaces of the stirring blades 101 in a direction perpendicular to the rotation direction of the stirring blades; evenly set up a plurality of overflow holes 104 on stirring vane 101's the blade surface, overflow hole 104 can guarantee that stirring vane 101 is when the stirring, and partly liquid can be through overflow hole 104 motion mixture to make stirring vane 101 fully mix with domestic sewage with the chemical that pours into in the material chamber 1 into, use chemical heavy metal ion in domestic sewage to be located by the replacement, thereby make in the sewage poisonous heavy metal oxidation to become nontoxic or the less heavy metal ion of toxicity or deposit through the interact between the ion.

A first medicine inlet pipe 11 and a second medicine inlet pipe 12 are further arranged at the top of the dissolving cavity 1, and the feed end of the first medicine inlet pipe 11 and the feed end of the second medicine inlet pipe 12 are respectively inserted into the dissolving cavity 1 from the top thereof; a plug 15 is arranged at the joint of the first liquid inlet pipe 11, the second medicine inlet pipe 12 and the top of the material dissolving cavity 1; the feeding end of the first feeding pipe 11 and the feeding end of the second feeding pipe 12 are respectively provided with a plurality of discharging holes 13 on the pipe wall in the material dissolving cavity 1, and the discharging holes 13 are arranged along the height direction of the material dissolving cavity 13; go into the discharge opening 13 on the pencil 11 through first and the second and advance discharge opening 13 on the pencil 12 evenly ejection of compact in to the material chamber 1, ferrous chloride solution and hydrogen peroxide solution all add domestic sewage as strong oxidizer simultaneously, ferrous chloride solution and hydrogen peroxide solution evenly fuse in the material chamber 1 with the poisonous heavy metal substance reaction in the sewage, thereby also make poisonous heavy metal oxidation in the sewage nontoxic or the less heavy metal ion of toxicity or deposit through the interact between the ion when being favorable to carrying out the decoloration to domestic sewage and handling.

The top of the electrolysis cavity 2 is provided with a liquid inlet baffle 21, and the liquid inlet baffle 21 is blocked at the liquid inlet of the electrolysis cavity 1; a vertical column 22 is arranged in the middle of the inside of the electrolysis cavity 2, a telescopic device 23 is arranged in the vertical column 22, the top of a telescopic rod of the telescopic device 23 is fixedly arranged on the lower surface of the liquid inlet baffle plate 21, and the telescopic rod of the telescopic device 23 is lifted up, so that the liquid inlet baffle plate 21 is lifted away from a liquid inlet of the electrolysis cavity 2; the inner side of the liquid inlet of the electrolysis cavity 2 is provided with an inclined diversion trench 24, so that the domestic sewage entering the electrolysis cavity 2 can be effectively controlled, and the biological sewage entering the electrolysis cavity 2 can be fully electrolyzed and separated out.

An electrolytic settling device 20 is arranged in the electrolytic cavity 2, the electrolytic settling device 20 comprises a plurality of anode electrolytic plates 201 and a plurality of cathode electrolytic plates 202, the anode electrolytic plates 201 are wrapped on the cathode electrolytic plates 202, and the positive electrode plates 201 are arranged in one-to-one correspondence with the negative electrode plates 202; an electrolysis channel 203 is formed between the anode electrolytic plate 201 and the cathode electrolytic plate 202 at intervals; the electrolysis channel 203 is arranged in the electrolysis cavity 1 in the vertical direction, sewage entering from a liquid inlet at the top of the electrolysis cavity 2 flows into the electrolysis channel 203 and flows out after electrolysis, domestic sewage enters the electrolysis channel 203 and serves as electrolyte, and hydroxide or polyhydroxy polymer linear object flocculant is generated through electrolysis reaction in the electrolysis channel 203, wherein the electrolysis reaction is as follows: carrying out flocculation precipitation on insoluble substances in the domestic sewage by using a flocculating agent; meanwhile, the unreacted ferrous ions in the material dissolving cavity 1 enhance the electrolytic reaction in the electrolytic cavity 2, so that the electrolytic reaction efficiency is higher, and the sewage treatment effect is better.

A filtering structure 31 is arranged in the degradation box 3, and the filtering structure 31 separates the interior of the degradation box 3 into an upper degradation cavity 32 and a lower sedimentation cavity 33; a liquid outlet is formed in the bottom of the electrolysis cavity 2, and the electrolysis cavity 2 is communicated with the lower descending cavity 3; the upper degradation cavity 32 is uniformly and circumferentially provided with a biodegradation groove structure 30; the sewage is filtered by the filtering structure 31 after being settled in the lower settling chamber 33 and enters the upper degradation chamber 32, the sewage moves upwards in the upper degradation chamber 32 and passes through the interior of the biodegradation tank structure 30, and the top of the upper degradation chamber 33 is provided with a liquid outlet pipeline 36. Baffles 34 are arranged in the lower settling chamber 33 along the sewage flow direction, and the baffles 34 are arranged in the lower settling chamber 1 in a staggered manner; one end of the baffle 34 is arranged on the inner side wall of the lower settling chamber 33, and the other end of the baffle is suspended; the baffle 34 is arranged obliquely in the opposite direction of sewage flow; a folding plate 35 is arranged at the suspended end of the baffle 34, the folding plate 35 is arranged in an inclined manner along the direction opposite to the flowing direction of the sewage, and the inclined angle of the folding plate 35 is larger than that of the baffle 34. The domestic sewage and the flocculate in the domestic sewage are introduced into the lower settling cavity 33 for standing and settling, so that the large-particle flocculent precipitate is settled at the bottom of the lower settling cavity 33, and is shielded by the baffle 34 and the deflecting plate 35, so that the large-particle flocculent precipitate is separated from the domestic sewage in the lower settling cavity 33, and the large-particle flocculent precipitate is favorably settled at the bottom of the lower settling cavity 33.

The filtering structure 31 comprises a filtering material box body 310 which penetrates through the filtering structure from top to bottom, a first filtering material layer 311, a second filtering material layer 312 and a third filtering material layer 313 are sequentially arranged in the filtering material box body 310 from bottom to top, the sizes of filtering materials of the first filtering material layer 311, the second filtering material layer 312 and the third filtering material layer 313 are sequentially reduced, and the filtering materials in the first filtering material layer 311, the second filtering material layer 312 and the third filtering material layer 313 are all activated carbon particles. The filter layer thus arranged makes the filter structure 31 more effective in filtering granular floc in domestic sewage.

The biodegradation tank structure 30 comprises a plurality of biodegradation tank units 301 and a fixing rod 302, wherein the biodegradation tank units 301 are sequentially connected in series along the length direction of the fixing rod 302; the bottom of the biodegradation tank unit 301 is arranged in a frustum shape, and a plurality of tank body liquid inlets 3010 are arranged on the inclined surface at the bottom of the biodegradation tank unit; a plurality of microorganism fixing plates 3011 are arranged in the biodegradation tank unit 301 from bottom to top, liquid through holes 3012 are arranged on the microorganism fixing plates 3011, and the liquid through holes 3012 of adjacent microorganism fixing plates 3011 are arranged in a staggered manner; the sewage enters the biodegradation tank unit 301 from the liquid inlet, is sequentially degraded and oxidized by microorganisms on the microorganism fixing plate 3011 and flows out from the liquid outlet 3013 of the tank body on the top of the microorganism fixing plate.

A treatment method of domestic sewage treatment equipment comprises the following steps: s1, injecting domestic sewage into the solution cavity 1 through the liquid inlet pipe 14; introducing a ferrous chloride solution and a hydrogen peroxide solution into the dissolving cavity from the first medicine inlet pipe 11 and the second medicine inlet pipe 12, wherein the mass fraction of ferrous chloride is 2-4%, and the mass fraction of hydrogen peroxide is 5-8%; starting the stirring motor 103, and driving the stirring blades 101 in the material dissolving cavity 1 to rotate through the stirring motor 103, so that the ferrous chloride solution and the hydrogen peroxide solution are fully and uniformly mixed in the domestic sewage; so that the ferrous chloride solution and the hydrogen peroxide solution generate oxidation-reduction reaction in the domestic sewage, and various heavy metal ions in the domestic sewage are removed.

S2, controlling the telescopic rod of the telescopic device 23 to extend out, and pushing the liquid inlet baffle 21 away from the liquid inlet of the electrolysis cavity 2, so that the domestic sewage in the solution cavity 1 enters the electrolysis channel 203 in the electrolysis cavity 2; electrifying an anode electrolytic plate 201 and a cathode electrolytic plate 202 of the electrolytic settling device 20, wherein the anode electrolytic plate 201 is made of iron metal, the anode electrolytic plate 201 generates iron ions under the action of direct current, the iron ions are hydrolyzed in domestic sewage to generate hydroxide, and suspended matters and emulsion in the sewage are adsorbed under the action of an adsorption bridge to form flocculent substance coagulation and precipitation.

S3, domestic sewage in the electrolysis cavity 2 enters the lower sedimentation cavity 33 through a communication pipeline, large granular flocculent sediments in the domestic sewage settle in the lower sedimentation cavity 33, baffle plates 34 are arranged in the lower sedimentation cavity 33 in a staggered mode, and the large granular flocculent sediments are gradually settled at the bottom of the lower sedimentation cavity 33 through the blocking effect of the baffle plates 34 on the large granular flocculent sediments; and the large granular flocculent precipitate is blocked and filtered by the filter material layer in the filter structure 31;

s4, the domestic sewage enters the upper degradation cavity 32 through the filtering structure 31, the domestic sewage passes through the biodegradation tank unit 301 in sequence, and is dissolved by the anaerobic microorganisms in the biodegradation tank unit 301 and extracellular hydrolase secreted by the anaerobic microorganisms, so that the organic substances in the domestic sewage enter the cells through cell walls for metabolic biochemical reaction. Under the catalysis of hydrolase, complex polysaccharides in the domestic sewage are hydrolyzed into monosaccharides, proteins are hydrolyzed into peptides and amino acids, and fats are hydrolyzed into glycerol and fatty acids; finally, the organic pollutants in the living materials are hydrolyzed.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.