阅读说明：本技术 一种高浊水处理方法及其处理装置 (High-turbidity water treatment method and treatment device thereof ) 是由 李路程 干晓生 王礼博 于江华 于 2020-04-23 设计创作，主要内容包括：本发明公开了一种高浊水处理方法及其处理装置,一种高浊水处理装置,包括进水池、净化过滤罐和清水池,净化过滤罐内设有支撑膜层和超声液位传感器,支撑膜层上设有吸泥机,净化过滤罐上部和下部罐体上分别设有进水口和出水口,进水池通过水管与净化过滤罐的进水口连接,清水池通过水管与净化过滤罐的出水口连接,连接进水池和进水口的水管上设有水泵。采用高浊水处理装置能够充分利用高浊水含有的微颗粒物,应用和操作成本更低。本发明高浊水处理方法操作流程大大简化,避免了繁杂的流程,充分利用高浊水中原有的微颗粒物形成新的动态膜层,进而提高分离效果,实现高浊水中微颗粒物的分离。(The invention discloses a high turbid water treatment method and a high turbid water treatment device, wherein the high turbid water treatment device comprises a water inlet pool, a purification and filtration tank and a clean water pool, a support film layer and an ultrasonic liquid level sensor are arranged in the purification and filtration tank, a mud suction machine is arranged on the support film layer, a water inlet and a water outlet are respectively arranged on the upper tank body and the lower tank body of the purification and filtration tank, the water inlet pool is connected with the water inlet of the purification and filtration tank through a water pipe, the clean water pool is connected with the water outlet of the purification and filtration tank through a water pipe, and a water pump is arranged on the water pipe connecting the water inlet pool and the water inlet. By adopting the high-turbidity water treatment device, the micro-particles contained in the high-turbidity water can be fully utilized, and the application and operation cost is lower. The high turbidity water treatment method greatly simplifies the operation flow, avoids complex flow, and fully utilizes the original micro-particles in the high turbidity water to form a new dynamic film layer, thereby improving the separation effect and realizing the separation of the micro-particles in the high turbidity water.)

1. A high-turbidity water treatment method is characterized by comprising the following steps:

step 1, high turbidity water is prepared and treated by diatomite;

step 2, pumping the high turbid water subjected to the diatomite configuration treatment into a purification and filtration tank, gradually intercepting micro particles in the high turbid water by an inner support membrane layer in the purification and filtration tank, gradually forming a dynamic membrane layer on the support membrane, and enabling the purified water subjected to the high turbid water filtration and purification by the dynamic membrane layer to flow into a clean water tank;

and 3, arranging an ultrasonic liquid level sensor in the purification and filtration tank, arranging a sludge suction machine on the support membrane layer, and starting the sludge suction machine to remove the partial dynamic membrane layer on the support membrane layer when the ultrasonic liquid level sensor detects that the liquid level in the purification and filtration tank exceeds a set value, so that the high-turbidity water treatment is continuously carried out.

2. The method for treating high-turbidity water according to claim 1, wherein the supporting membrane layer in the purification and filtration tank is a filter screen with a pore size of 60-70 μm, preferably a filter screen with a pore size of 68 μm, and the supporting membrane layer is arranged at the bottom in the purification and filtration tank.

3. The method of claim 1, wherein the dredge is a rotary sweeping dredge.

4. The utility model provides a high turbid water treatment facilities, its characterized in that, crosses jar and clean water basin including intake pool, purification, it is equipped with support rete and supersound level sensor to purify the filtration jar internal branch to become upper portion and lower part to cross the membrane, supersound level sensor is located the upper portion that purifies the filtration jar, be equipped with the suction dredge on the support rete, purify and cross and be equipped with water inlet and delivery port on jar upper portion and the lower part jar body respectively, the intake pool leads to pipe and is connected with the water inlet that purifies the filtration jar, and the clean water basin leads to pipe and is connected with the delivery port that purifies the filtration jar, is equipped with the water pump on the water pipe of connecting intake pool and water inlet.

5. The high-turbidity water treatment device is characterized in that the support membrane layer in the purification and filtration tank is a filter screen with the aperture of 60-70 mu m, preferably a filter screen with the aperture of 68 mu m, and the support membrane layer is arranged at the bottom in the purification and filtration tank.

6. The high turbidity water treatment device is characterized in that the suction dredge is a rotary sweeping suction dredge.

Technical Field

The invention relates to the technical field of high-turbidity wastewater treatment, in particular to a high-turbidity water treatment method and a high-turbidity water treatment device.

Background

Because of the influence of human activities on a water system, a large amount of difficultly-degradable pollutants are mixed in urban sewage, industrial wastewater, natural water and underground water, and the removal effect of the traditional water purification process and sewage treatment technology on the difficultly-degradable pollutants is very limited, the difficultly-degradable pollutants in the water system are accumulated continuously and are transferred through a food chain of an ecosystem, and finally, the difficultly-degradable pollutants are harmful to human bodies and social environments. Therefore, a proper method should be established to meet the treatment requirements of the pollutants which are difficult to degrade.

The treatment process commonly used in water treatment plants at present comprises the stages of coagulation, precipitation, filtration, disinfection and the like. The existing technical means are difficult to separate and remove micro-particles in surface water bodies and underground water.

The treatment process commonly used in the current sewage treatment plant comprises the stages of a grit chamber, a primary sedimentation tank, secondary biological treatment (an activated sludge method and a biofilm method), a secondary sedimentation tank, coagulation, a biological filter and the like, and the existing treatment technology has poor effect of removing refractory micro-particles.

In the current process adopting the microfiltration membrane and ultrafiltration membrane separation technology, the micro-particles in the water body can be effectively separated, but the use and maintenance costs of the microfiltration membrane and the ultrafiltration membrane are relatively high, and membrane pores are easy to block to cause membrane pollution.

The patent CN 205710219U reports a high-turbidity water filtering device, the device is provided with a three-stage filtering layer, and related water inlet and outlet and backwashing pipeline valves need to be opened and closed every time of operation, so that the operation steps are more.

Patent CN 201447392U reports a high and low turbidity water purification device, which functions include coagulation, sedimentation, filtration and self-cleaning processes, and the process is fine but slightly complicated.

Disclosure of Invention

The invention aims to provide a high-turbidity water treatment method aiming at the defects in the prior art.

Another object of the present invention is to provide a high turbidity water treatment apparatus.

The purpose of the invention is realized by the following technical scheme:

a high-turbidity water treatment method specifically comprises the following steps:

step 1, high turbidity water is prepared and treated by diatomite;

step 2, pumping the high turbid water subjected to the diatomite configuration treatment into a purification and filtration tank, gradually intercepting micro particles in the high turbid water by an inner support membrane layer in the purification and filtration tank, gradually forming a dynamic membrane layer on the support membrane, and enabling the purified water subjected to the high turbid water filtration and purification by the dynamic membrane layer to flow into a clean water tank;

and 3, arranging an ultrasonic liquid level sensor in the purification and filtration tank, arranging a sludge suction machine on the support membrane layer, and starting the sludge suction machine to remove the partial dynamic membrane layer on the support membrane layer when the ultrasonic liquid level sensor detects that the liquid level in the purification and filtration tank exceeds a set value, so that the high-turbidity water treatment is continuously carried out.

In a further design scheme of the invention, the support membrane layer in the purification and filtration tank is a filter screen with the aperture of 60-70 μm, preferably a filter screen with the aperture of 68 μm, and the support membrane layer is arranged at the bottom in the purification and filtration tank.

In a further design scheme of the invention, the suction dredge is a rotary sweeping suction dredge.

The utility model provides a high turbid water treatment facilities, includes intake pool, purification filtration jar and clean water basin, it is equipped with support rete and supersound level sensor in the filtration jar to purify, it will purify filtration jar body and fall into upper portion and lower part to support the rete, supersound level sensor is located the upper portion in the purification filtration jar, be equipped with the suction dredge on the support rete, purify and be equipped with water inlet and delivery port on the filtration jar body of upper portion and lower part respectively, the intake pool leads to pipe and purifies the water inlet of filtration jar and be connected, and the clean water basin leads to pipe and is connected with the delivery port of purifying the filtration jar, is equipped with the water pump on the water pipe of connecting intake pool and water inlet.

In a further design scheme of the invention, the support membrane layer in the purification and filtration tank is a filter screen with the aperture of 60-70 μm, preferably a filter screen with the aperture of 68 μm, and the support membrane layer is arranged at the bottom in the purification and filtration tank.

In a further design scheme of the invention, the suction dredge is a rotary sweeping suction dredge.

The invention has the following outstanding advantages:

1. the operation process is greatly simplified, the complex process is avoided, the original micro-particles in the high turbidity water are fully utilized to form a new dynamic film layer, the separation effect is further improved, and the separation of the micro-particles in the high turbidity water is realized.

2. The coagulation process is cancelled, and the operation energy consumption is reduced through gravity flow. The method eliminates the addition of a coagulation medicament, and reduces the medicament consumption; meanwhile, the high-turbidity water is mainly filtered by gravity flow, and other processes with additional energy consumption are not needed except for the operation of scraping and removing a new membrane layer, so that the process energy consumption is low.

3. The water outlet quality is improved. The method forms a new dynamic film layer on the basis of the separation of the original filter screen, improves the filtering precision and the filtering effect, and obviously improves the effluent quality.

Drawings

FIG. 1 is a schematic view showing the construction of a high-turbidity water treatment apparatus according to an embodiment;

FIG. 2 is a turbidity change curve during application of the method for treating highly turbid water according to the embodiment;

FIG. 3 is the particle size distribution of the microparticles of the example before the high turbidity water treatment and after 60 minutes of treatment by the dynamic membrane technique;

in the figure, 1-a water inlet pool, 2-a water inlet pump, 3-an ultrasonic liquid level sensor, 4-a mud suction machine, 5-a supporting film layer, 6-a flow meter and 7-a clean water pool.

Detailed Description

The invention is further explained below with reference to the drawings and examples.

Examples

A high turbid water treatment device comprises a water inlet pool 1, a purification and filtration tank and a clean water pool 7, wherein the purification and filtration tank is an open tank and is driven by gravity, a support membrane layer 5 and an ultrasonic liquid level sensor 3 are arranged in the purification and filtration tank, the support membrane layer 5 in the purification and filtration tank is a filter screen with the aperture of 60-70 mu m, the filter screen with the aperture of 68 mu m is preferably selected, and the support membrane layer 5 is arranged at the bottom in the purification and filtration tank. The support membrane layer 5 divides the tank body of the purification and filtration tank into an upper part and a lower part, the ultrasonic liquid level sensor 3 is positioned at the upper part in the purification and filtration tank, and the ultrasonic liquid level sensor 3 is arranged above the liquid level for liquid level measurement. The supporting film layer 5 is provided with a suction dredge 4, and the suction dredge 4 is a rotary type cleaning suction dredge 4. The upper tank body and the lower tank body of the purification and filtration tank are respectively provided with a water inlet and a water outlet, the water inlet tank 1 is connected with the water inlet of the purification and filtration tank through a water pipe, the clean water tank 7 is connected with the water outlet of the purification and filtration tank through a water pipe, the water pipe connecting the water inlet tank 1 and the water inlet is provided with a water pump, and the water pipe connecting the clean water tank 7 and the purification and filtration tank is provided with a flowmeter 6.

The specific method for implementing the purification treatment by adopting the high-turbidity water treatment device comprises the following steps:

step 1, high turbidity water is subjected to configuration treatment by adopting diatomite, certain mass of diatomite is weighed according to technical requirements, the diatomite is mixed with tap water and then uniformly stirred, so that the mixture meets the use requirements, and the treated high turbidity water is placed into a water inlet pool 1;

step 2, pumping the high turbid water subjected to the diatomite configuration treatment in the water inlet pool 1 into a purification and filtration tank through a water inlet pump 2, gradually intercepting micro-particles in the high turbid water by an inner support membrane layer 5 in the purification and filtration tank, gradually intercepting and enriching the micro-particles contained in the high turbid water on the surface of the support membrane layer 5, gradually extruding and compacting a dynamic membrane layer on the support membrane layer 5 under the action of water pressure, gradually forming a dynamic membrane layer on the support membrane layer, and enabling the purified water of the high turbid water subjected to the dynamic membrane layer filtration and purification to flow into a clean water pool 7; the effluent flows into the clean water tank 7 under the action of gravity flow, so that the treatment of high turbid water and the separation of micro-particles are realized, and the separation effect is gradually improved along with the continuous formation of the dynamic film layer. The new rete formation in-process of dynamic rete constantly increases rete thickness, and then improves the filter fineness of dynamic rete, realizes the separation to the particulate matter in the high turbid water.

And 3, arranging an ultrasonic liquid level sensor 3 in the purification and filtration tank, arranging a mud suction machine 4 on the supporting membrane layer 5, sending out a warning when the ultrasonic liquid level sensor 3 detects that the liquid level in the purification and filtration tank exceeds a set value, and manually starting the mud suction machine 4 to clear the transfer dynamic membrane layer on the upper part of the supporting membrane layer 5, so that the operating pressure of the filtration system is reduced, and the high-turbidity water treatment is continued.

By adopting the high-turbidity water purification method, 20-minute and 60-minute purification tests are respectively carried out, and the purification effect is as follows: as shown in figure 2, the inlet water turbidity is about 200NTU, after 20 minutes of filtration, the outlet water turbidity can be reduced to below 1NTU, and the turbidity removal effect can reach more than 99%. As shown in FIG. 3, the particle size of the particles in the effluent was substantially 10 μm or less after 60 minutes of dynamic membrane filtration.

The above are preferred embodiments of the present invention, and all changes made according to the technical scheme of the present invention that produce functional effects do not exceed the scope of the technical scheme of the present invention belong to the protection scope of the present invention.