阅读说明：本技术 一种屠宰废水油脂处理集成工艺 (Slaughter wastewater grease treatment integrated process ) 是由 李红丽 徐进峰 单琦 于 2019-10-28 设计创作，主要内容包括：本发明公开了一种屠宰废水油脂处理集成工艺,屠宰废水分两股废水进入污水处理单元,一股废水是粪便废水,一股是高温含油废水,粪便废水进入粪便固液分离机,经过粪便固液分离机的废水进入第一初沉池进行二次沉淀,第一初沉池澄清液自流进入调节池；高温含油废水进入第二初沉池,后续废水处理单元达标后未消毒的污水部分回流至换热盘管,本发明涉及废水处理技术领域。该屠宰废水油脂处理集成工艺,通过设置粪便固液分离机先对粪便废水进行固液分离,然后再进行沉淀处理,只排出上层澄清液,可有效的有效去除屠宰废水中的大颗粒悬浮物等污染物,减少人工成本,自动化程度高,运行成本低,保证后续废水处理工艺的正常运行。(The invention discloses a slaughter wastewater grease treatment integrated process, slaughter wastewater is divided into two streams of wastewater to enter a sewage treatment unit, one stream of wastewater is fecal wastewater, the other stream of wastewater is high-temperature oily wastewater, the fecal wastewater enters a fecal solid-liquid separator, the wastewater passing through the fecal solid-liquid separator enters a first primary sedimentation tank to carry out secondary sedimentation, and clarified liquid of the first primary sedimentation tank automatically flows into a regulating tank; the invention relates to the technical field of wastewater treatment, and discloses a method for treating high-temperature oily wastewater. This slaughter waste water grease handles integrated technology carries out solid-liquid separation to excrement and urine waste water earlier through setting up excrement and urine solid-liquid separation machine, then carries out precipitation treatment, and the upper clear liquid of only discharging can effectually effectively get rid of pollutants such as the large granule suspended solid in slaughtering the waste water, reduces the cost of labor, and degree of automation is high, and the running cost is low, guarantees follow-up waste water treatment process's normal operating.)

1. An integrated process for treating slaughter wastewater grease, which is characterized in that: the method specifically comprises the following steps:

s1: slaughtering wastewater is divided into two streams of wastewater and enters a sewage treatment unit, one stream of wastewater is fecal wastewater, the other stream of wastewater is high-temperature oily wastewater, the fecal wastewater enters a fecal solid-liquid separator (12), the wastewater passing through the fecal solid-liquid separator (12) enters a first primary sedimentation tank (2) for secondary sedimentation, and clarified liquid of the first primary sedimentation tank (2) automatically flows into a regulating tank (1);

s2: the high-temperature oily wastewater enters a second primary sedimentation tank (3), the non-disinfected sewage after the subsequent wastewater treatment unit reaches the standard partially flows back to a heat exchange coil (15), the sewage reaching the standard after heat exchange enters a disinfection tank, and the cooled high-temperature oily wastewater is solidified on the upper part of the second primary sedimentation tank (3);

s3: grease solidified in the second primary sedimentation tank (3) enters the oil storage tank (4) through the oil passing hole by manual assistance, if the liquid level of the second primary sedimentation tank (3) is not as high as the oil passing hole, the backflow electric valve (11) of the water outlet branch pipe (9) of the adjusting tank lifting pump (6) is automatically opened, the liquid level of the second primary sedimentation tank (3) is lifted to the water passing hole, and the operation of the front section of S3 is continuously carried out;

s4: the oil and fat are conveyed to an oil storage tank (4), a conveyor (14) is arranged at the bottom of the oil storage tank (4) for oil-water separation, water leakage holes are formed in two sides of the bottom of the oil storage tank (4), water is collected to a water collecting tank (5) at the lower part of the oil storage tank (4) from the water leakage holes and is finally collected to a water collecting pit through a pipeline, and the oil and fat are conveyed, collected and recovered through the conveyor (14);

s5: after grease solidified in the wastewater cooled by the second primary sedimentation tank (3) is discharged, a water discharge electric valve (19) is started, and the wastewater without the grease enters the regulating tank (1);

s6: the adjusting tank lifting pump (6) continuously operates under the indication of the first liquid level meter (13), the manual valve (10) is in a normally open state, and the effluent of the adjusting tank (1) enters the subsequent treatment unit to continue treatment and is discharged after reaching the standard.

2. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the treatment equipment comprises a regulating reservoir (1), wherein a first primary sedimentation tank (2) and a second primary sedimentation tank (3) are sequentially arranged on the front side of the regulating reservoir (1) from left to right, and an oil storage tank (4) and a water collection tank (5) are sequentially arranged on the right side of the second primary sedimentation tank (3) from top to bottom.

3. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the right side of equalizing basin (1) is provided with equalizing basin elevator pump (6), the water inlet intercommunication of equalizing basin elevator pump (6) has drinking-water pipe (7), the left end of drinking-water pipe (7) runs through the right wall of equalizing basin (1) and extends to the inside of equalizing basin (1).

4. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the delivery port intercommunication of equalizing basin elevator pump (6) has a water outlet main pipe (8), the right side intercommunication that the water outlet main pipe (8) was responsible for has a water outlet branch pipe (9), and the water outlet main pipe (8) are located the fixed surface of water outlet branch pipe (9) rear side and are connected with manual valve (10), the fixed surface of water outlet branch pipe (9) is connected with backward flow motorised valve (11), and the one end of water outlet branch pipe (9) extends to the inside of second primary sedimentation pond (3).

5. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the left front side fixedly connected with excrement solid-liquid separation machine (12) of first heavy pond (2) inner chamber, the left rear side fixedly connected with first level gauge (13) of equalizing basin (1) inner wall, the left front side fixedly connected with second level gauge (17) of second heavy pond (3) inner wall.

6. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: a drain pipe (18) penetrates between the second primary sedimentation tank (3) and the middle layer of the inner cavity of the adjusting tank (1), and the surface of the drain pipe (18) is fixedly connected with a drain electric valve (19).

7. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the bottom fixedly connected with conveyer (14) of oil storage tank (4) inner chamber, and the both ends of conveyer (14) all extend to the outside of oil storage tank (4).

8. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the inside fixedly connected with heat exchange coil (15) of pond (3) is just sinking to the second, heat exchange coil (15) both ends all run through the second and just sink pond (3) and extend to the outside that the pond (3) was just sinking to the second.

9. The slaughter wastewater grease treatment integrated process according to claim 1, characterized in that: the water hole has been seted up between the upper strata of first heavy pond (2) and equalizing basin (1) inner chamber, the oilhole has been seted up between the upper strata of second heavy pond (3) and oil storage tank (4) inner chamber, and the right side intercommunication of crossing the oilhole has oil extraction pipe (16), and the right-hand member of oil extraction pipe (16) extends to the top of conveyer (14) feeder hopper, the hole that leaks has all been seted up to the both sides of oil storage tank (4) bottom.

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to an integrated process for treating slaughter wastewater grease.

Background

In the process of slaughtering and meat processing, a large amount of water is consumed, and simultaneously, waste water containing pollutants such as blood stain, grease, hair, meat scraps, impurities in internal organs of livestock and poultry, undigested food and excrement is discharged, and the waste water also contains a large amount of microorganisms harmful to human health. If the meat processing wastewater is directly discharged without treatment, serious pollution is caused to the water environment, and harm is caused to the health of people and livestock, most of pollutants contained in the meat processing wastewater belong to organic matters easy to biodegrade, and dissolved oxygen in water can be rapidly consumed after the pollutants are discharged into a water body, so that fishes and aquatic organisms die due to oxygen deficiency; the water body is converted into an anaerobic state due to oxygen deficiency, so that the water quality is deteriorated, odor is generated, and sanitation is affected. Meanwhile, pathogenic microorganisms in the wastewater can propagate in a large amount and harm human health, and the pollution of slaughter wastewater and wastewater generated by livestock and poultry breeding to water is a larger pollution source than industrial wastewater and domestic sewage at present, so that the treatment of slaughter meat processing wastewater and the removal of the pollution are very necessary for protecting the ecological environment and human health.

The slaughtering wastewater contains a large amount of blood pollutants, grease, hair, meat scraps, bone scraps, visceral impurities, undigested food, excrement and other pollutants, has unpleasant odor, has high content of solid suspended matters, contains high-concentration organic matters, and has high treatment difficulty and serious environmental pollution.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an integrated process for treating slaughter wastewater grease, which solves the problems of high oil stain and solid suspended matter content, high-concentration organic matter content and high treatment difficulty in slaughter wastewater.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an integrated process for treating slaughter wastewater grease specifically comprises the following steps:

s1: slaughtering wastewater is divided into two streams of wastewater and enters a sewage treatment unit, one stream of wastewater is fecal wastewater, the other stream of wastewater is high-temperature oily wastewater, the fecal wastewater enters a fecal solid-liquid separator, the wastewater passing through the fecal solid-liquid separator enters a first primary sedimentation tank for secondary sedimentation, and clarified liquid of the first primary sedimentation tank automatically flows into a regulating tank;

s2: high-temperature oily wastewater enters a second primary sedimentation tank, the non-disinfected sewage part flows back to a heat exchange coil after a subsequent wastewater treatment unit reaches the standard, the sewage reaching the standard after heat exchange enters a disinfection tank, and the cooled high-temperature oily wastewater is solidified on the upper part of the second primary sedimentation tank;

s3: the solidified grease in the second primary sedimentation tank enters the oil storage tank through the oil passing hole by manual assistance, if the liquid level of the second primary sedimentation tank is not as high as the oil passing hole, the backflow electric valve of the water outlet branch pipe of the lifting pump of the regulating tank is automatically opened, the liquid level of the second primary sedimentation tank is lifted to the water passing hole, and the operation of the front section of S3 is continuously carried out;

s4: the oil and fat are conveyed to an oil storage tank, a conveyor is arranged at the bottom of the oil storage tank for oil-water separation, water leakage holes are formed in two sides of the bottom of the oil storage tank, water is collected to a water collecting tank at the lower part of the oil storage tank from the water leakage holes and is finally collected to a water collecting pit through a pipeline, and the oil and fat are conveyed, collected and recovered through the conveyor;

s5: after grease solidified in the wastewater cooled in the second primary sedimentation tank is discharged, starting a drainage electric valve, and enabling the wastewater after grease removal to enter a regulating tank;

s6: the regulating reservoir lift pump continuously operates under the indication of the first liquid level meter, the manual valve is in a normally open state, and the effluent of the regulating reservoir enters the subsequent treatment unit to continue treatment and is discharged after reaching the standard.

The invention also discloses slaughter wastewater grease treatment integrated equipment which comprises an adjusting tank, wherein a first primary sedimentation tank and a second primary sedimentation tank are sequentially arranged on the front side of the adjusting tank from left to right, and an oil storage tank and a water collection tank are sequentially arranged on the right side of the second primary sedimentation tank from top to bottom.

Preferably, the right side of equalizing basin is provided with the equalizing basin elevator pump, the water inlet intercommunication of equalizing basin elevator pump has the drinking-water pipe, the left end of drinking-water pipe runs through the right wall of equalizing basin and extends to the inside of equalizing basin.

Preferably, the water outlet of the regulating reservoir lift pump is communicated with a main water outlet pipe, the right side of the main water outlet pipe is communicated with a branch water outlet pipe, a manual valve is fixedly connected to the surface of the main water outlet pipe, which is located on the rear side of the branch water outlet pipe, a reflux electric valve is fixedly connected to the surface of the branch water outlet pipe, and one end of the branch water outlet pipe extends into the second primary sedimentation tank.

Preferably, the left front side fixedly connected with excrement solid-liquid separation machine of first heavy pond inner chamber, the left rear side fixedly connected with first level gauge of equalizing basin inner wall, the left front side fixedly connected with second level gauge of second heavy pond inner wall.

Preferably, a drain pipe penetrates through the middle layer of the inner cavity of the second primary sedimentation tank and the adjusting tank, and the surface of the drain pipe is fixedly connected with a drain electric valve.

Preferably, the bottom of the inner cavity of the oil storage tank is fixedly connected with a conveyor, and two ends of the conveyor extend to the outside of the oil storage tank.

Preferably, the inside fixedly connected with heat exchange coil of pond is just deposiing to the second, heat exchange coil's both ends all run through the second and just sink the pond and extend to the outside that the pond was just deposiing to the second.

Preferably, the water hole has been seted up between the upper strata of first just heavy pond and equalizing basin inner chamber, the oilhole has been seted up between the upper strata of second just heavy pond and oil storage tank inner chamber, and the right side intercommunication of crossing the oilhole has the oil extraction pipe, and the right-hand member of oil extraction pipe extends to the top of conveyer feeder hopper, the hole that leaks has all been seted up to the both sides of oil storage tank bottom.

(III) advantageous effects

The invention provides an integrated process for treating slaughter wastewater grease. Compared with the prior art, the method has the following beneficial effects:

(1) the slaughter wastewater grease treatment integrated process comprises the following steps of S1: slaughter the waste water and divide two strands of waste water to get into sewage treatment unit, one waste water is excrement and urine waste water, the one is high temperature oily waste water, excrement and urine waste water gets into excrement and urine solid-liquid separation machine, waste water through excrement and urine solid-liquid separation machine gets into first primary sedimentation pond and carries out the secondary sedimentation, first primary sedimentation pond clarified liquid flows automatically and gets into the equalizing basin, carry out solid-liquid separation to excrement and urine waste water earlier through setting up excrement and urine solid-liquid separation machine, then carry out sedimentation treatment, only discharge upper clarified liquid, can effectually effectively get rid of pollutants such as the large granule suspended solid in slaughter the waste water, reduce the cost of labor, the automation is high, the running cost is low, guarantee the normal operating.

(2) The fat and oil of the high-temperature oily wastewater after cooling is solidified at the upper part of the second primary sedimentation tank; s3: the solidified grease in the second primary sedimentation tank enters the oil storage tank through the oil passing hole by manual assistance, if the liquid level of the second primary sedimentation tank is not as high as the oil passing hole, the backflow electric valve of the water outlet branch pipe of the lifting pump of the regulating tank is automatically opened, the liquid level of the second primary sedimentation tank is lifted to the water passing hole, and the operation of the front section of S3 is continuously carried out; s4: grease to oil storage tank, oil storage tank bottom sets up the conveyer and carries out oil-water separation, and oil storage tank bottom both sides set up the hole that leaks, and water is collected to oil storage tank lower part water catch bowl from the hole that leaks, finally collects to the sump pit by the pipeline, and the grease is carried by the conveyer and is collected the recovery, through cooling to high temperature oily waste water, can make liquid grease solidify after the cooling, is convenient for separate, then behind the rethread conveyer dehydration, can be thorough get rid of the grease.

(3) The slaughter wastewater grease treatment integrated process comprises the following steps of S2: the non-sterile sewage part flows back to the heat exchange coil pipe after the follow-up wastewater treatment unit reaches the standard, and the sewage reaching the standard after the heat exchange enters the disinfection tank, and the non-sterile sewage part flows back and is recycled after the follow-up wastewater treatment, so that the high-temperature wastewater is subjected to heat exchange cooling by using the non-sterile sewage part, the use of cooling liquid cooling water is omitted, and the cost is saved.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a top view of the structure of the present invention;

fig. 3 is a right side view of the oil sump and water sump of the present invention.

In the figure 1, A is excrement wastewater, B is high-temperature oily wastewater, C is untreated non-sterile sewage, D is treated to reach the standard and then is not sterilized, and E is a sterilization tank.

In the figure 2-3, 1-regulating reservoir, 2-first primary settling reservoir, 3-second primary settling reservoir, 4-oil storage tank, 5-water collecting tank, 6-regulating reservoir lifting pump, 7-water pumping pipe, 8-main water outlet pipe, 9-branch water outlet pipe, 10-manual valve, 11-electric reflux valve, 12-excrement solid-liquid separator, 13-first liquid level meter, 14-conveyor, 15-heat exchange coil, 16-oil discharge pipe, 17-second liquid level meter, 18-water discharge pipe and 19-electric water discharge valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: an integrated process for treating slaughter wastewater grease specifically comprises the following steps:

s1: slaughtering wastewater is divided into two streams of wastewater and enters a sewage treatment unit, one stream of wastewater is fecal wastewater, the other stream of wastewater is high-temperature oily wastewater, the fecal wastewater enters a fecal solid-liquid separator 12, the wastewater passing through the fecal solid-liquid separator 12 enters a first primary sedimentation tank 2 for secondary sedimentation, and clarified liquid of the first primary sedimentation tank 2 automatically flows into a regulating tank 1;

s2: the high-temperature oily wastewater enters a second primary sedimentation tank 3, the non-disinfected sewage after the subsequent wastewater treatment unit reaches the standard partially flows back to a heat exchange coil 15, the sewage reaching the standard after heat exchange enters a disinfection tank, and the cooled high-temperature oily wastewater is solidified on the upper part of the second primary sedimentation tank 3;

s3: the grease solidified in the second primary sedimentation tank 3 enters the oil storage tank 4 through the oil passing hole by manual assistance, if the liquid level of the second primary sedimentation tank 3 is not as high as the oil passing hole, the water outlet branch pipe 9 of the regulating tank lifting pump 6 is automatically opened to return to the electric valve 11, the liquid level of the second primary sedimentation tank 3 is lifted to the water passing hole, and the operation of the front section of S3 is continued;

s4: the grease is conveyed to an oil storage tank 4, a conveyor 14 is arranged at the bottom of the oil storage tank 4 for oil-water separation, water leakage holes are formed in two sides of the bottom of the oil storage tank 4, water is collected to a water collecting tank 5 at the lower part of the oil storage tank 4 from the water leakage holes and is finally collected to a water collecting pit through a pipeline, and the grease is conveyed, collected and recovered through the conveyor 14;

s5: after the grease solidified in the wastewater cooled by the second primary sedimentation tank 3 is discharged, starting a drainage electric valve 19, and enabling the wastewater without the grease to enter the regulating tank 1;

s6: the adjusting tank lifting pump 6 continuously operates under the indication of the first liquid level meter 13, the manual valve 10 is in a normally open state, and the effluent of the adjusting tank 1 enters a subsequent treatment unit to be continuously treated and is discharged after reaching the standard.

The invention also discloses integrated equipment for treating slaughter wastewater grease, which comprises an adjusting tank 1, wherein an adjusting tank lifting pump 6 is arranged on the right side of the adjusting tank 1, a water inlet of the adjusting tank lifting pump 6 is communicated with a water pumping pipe 7, the left end of the water pumping pipe 7 penetrates through the right wall of the adjusting tank 1 and extends into the adjusting tank 1, a water outlet of the adjusting tank lifting pump 6 is communicated with a main water outlet pipe 8, the right side of the main water outlet pipe 8 is communicated with a branch water outlet pipe 9, the surface of the main water outlet pipe 8, which is positioned on the rear side of the branch water outlet pipe 9, is fixedly connected with a manual valve 10, the surface of the branch water outlet pipe 9 is fixedly connected with an electric reflux valve 11, one end of the branch water outlet pipe 9 extends into the second primary sedimentation tank 3, a first primary sedimentation tank 2 and a second primary sedimentation tank 3 are sequentially arranged on the front side of the adjusting tank 1 from left to right, a water through hole is arranged between the first primary sedimentation tank 2 and the upper layer of the inner cavity of the adjusting tank, the right side of the oil passing hole is communicated with an oil discharge pipe 16, the right end of the oil discharge pipe 16 extends to the upper part of a feed hopper of a conveyor 14, two sides of the bottom of an oil storage tank 4 are provided with water leakage holes, the left front side of the inner cavity of a first primary sedimentation tank 2 is fixedly connected with an excrement solid-liquid separator 12, the rear side of the left side of the inner wall of an adjusting tank 1 is fixedly connected with a first liquid level meter 13, the first liquid level meter 13 is used for measuring the liquid level in the adjusting tank 1, when the liquid level is too low, a worker is reminded to close an adjusting tank lifting pump 6 to avoid the idle load of the adjusting tank, the front side of the left side of the inner wall of a second primary sedimentation tank 3 is fixedly connected with a second liquid level meter 17, the second liquid level meter 17 is used for measuring the liquid level in the second primary sedimentation tank 3, the upper layer grease is kept to reach the oil passing hole height, a reflux electric valve 11 can be automatically opened when the, the inside fixedly connected with heat exchange coil 15 of pond 3 is just sunk to the second, heat exchange coil 15's both ends all run through the second and just sink pond 3 and extend to the second and just sink the outside of pond 3, the right side from the top down of pond 3 is just sunk to the second has set gradually oil storage tank 4 and water catch bowl 5, the bottom fixedly connected with conveyer 14 of 4 inner chambers of oil storage tank, and conveyer 14's both ends all extend to the outside of oil storage tank 4, conveyer 14 can extrude the dehydration to the grease, its surface is located the part of oil storage tank 4 inside and is equipped with the apopore.

And those not described in detail in this specification are well within the skill of those in the art.

In conclusion, solid-liquid separation is performed on the excrement wastewater by arranging the excrement solid-liquid separator 12, then precipitation treatment is performed, only upper-layer clarified liquid is discharged, pollutants such as large-particle suspended matters and the like in slaughter wastewater can be effectively and effectively removed, high-temperature oily wastewater is cooled, liquid grease can be solidified after cooling, separation is facilitated, and then the oil can be thoroughly removed after dehydration is performed by the conveyor 14, so that labor cost is reduced, the automation degree is high, the operation cost is low, normal operation of a subsequent wastewater treatment process is guaranteed, unsterilized sewage part after subsequent wastewater treatment is returned and reused, heat exchange cooling is performed on the high-temperature wastewater by using the machine, the use of cooling liquid cooling water is omitted, and the cost is saved again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.