CN210825845U

CN210825845U - MBR application effluent treatment plant

Info

Publication number: CN210825845U
Application number: CN201921336381.5U
Authority: CN
Inventors: 吴立志
Original assignee: Zhejiang Jiehuang Environmental Protection Technology Co ltd
Current assignee: Zhejiang Jiehuang Environmental Protection Technology Co ltd
Priority date: 2019-08-18
Filing date: 2019-08-18
Publication date: 2020-06-23
Anticipated expiration: 2029-08-18

Abstract

An MBR coating wastewater treatment device comprises a rectangular water tank, wherein the front end of the water tank is provided with a water inlet, the rear end of the water tank is provided with a water outlet, the water inlet is provided with a detachable grid bar, the back end of the grid bar is respectively provided with a biological strain tank, an aeration tank, a biomembrane tank and a clean water tank in turn, a water-proof baffle is arranged between each two tanks, the biological strain tank is connected with the aeration tank through a water pump, the aeration tank is connected with the biological membrane tank through at least 3 through holes arranged on the water-stop baffle, the clean water tank is connected with the biological membrane tank through a water hole at the top, a sludge through hole is arranged at the bottom of the biological membrane tank, the sludge through hole is connected with an external water suction pump to extract sludge, and has the characteristics of high and stable effluent quality, small residual sludge yield, small occupied area, no limitation of setting occasions, removal of ammonia nitrogen and refractory organic matters, and the like.

Description

MBR application effluent treatment plant

Technical Field

The invention relates to an MBR coating wastewater treatment device, and belongs to the technical field of sewage treatment.

Background

Traditional sewage treatment purifies the application waste water through various purification solutions and clarifier, carries out environmental protection through complicated technology even, and this kind of traditional waste water treatment can lead to a water unstability, and mud output is very much to take up an area of very big, the place is extravagant, more is the organic matter degradation of difficult degradation such as many ammonia nitrogen in the waste water still has a large amount of residuals, and every step all needs people to observe and manage, very big extravagant resource of manpower.

The invention content is as follows:

the invention designs a purification treatment of spray wastewater, which adopts a mode of combining an MBR flat membrane and a traditional activated sludge biological treatment method to complete the treatment of sewage, and has the advantages of short process flow, high treatment efficiency, small occupied area and good effluent quality. The MBR flat membrane can replace a secondary sedimentation tank and a particle filter medium device in the traditional activated sludge process.

The invention is completed by the following technical scheme: the utility model provides a MBR application effluent treatment plant, it includes rectangular water tank, and the front end of this water tank is equipped with the water inlet, and the rear end is equipped with the delivery port, water inlet department is equipped with a detachable grid, and this grid rear end is equipped with biological bacterial pond, aeration tank, biomembrane pond, clean water basin respectively in proper order, all be equipped with the water proof baffle between every pond, be connected through the water pump between biological bacterial pond and the aeration tank, be connected through setting up 3 at least through-holes on the water proof baffle between aeration tank and the biomembrane pond, be connected through the water hole at top between clean water basin and the biomembrane pond to be equipped with the mud through-hole bottom the biomembrane pond, this mud through-hole is connected outside suction pump and is carried out the extraction of mud.

Preferably, the method comprises the following steps: divide into collecting pit and reaction tank in the biological bacterial pond, the reaction tank is equipped with denitrifying bacteria, the front end in the collecting pit is equipped with the grid strip, is equipped with intensive flowing water aperture on this grid strip.

Preferably, the method comprises the following steps: the rear end of the biological strain tank is provided with an aeration tank through a water-stop sheet, the bottom of the aeration tank is provided with an aeration pipe, the aeration pipe is provided with aeration holes which are evenly distributed, one side of the aeration tank is provided with a strain bag, and nitrobacteria and phosphorus bacteria are placed in the strain bag.

Preferably, the method comprises the following steps: the rear end of aeration tank is equipped with the biomembrane pond, is equipped with an at least MBR membrane module of evenly arranging in this biomembrane pond, this membrane module is fixed in the middle of the biomembrane pond through the fixed orifices that sets up in the both sides of water tank to the bottom is equipped with an aeration pipe, and aeration pipe in this aeration pipe connection aeration tank, this aeration pipe carries out the oxygen suppliment through outside oxygen supply machine.

Preferably, the method comprises the following steps: one side top of water tank is equipped with one and can supplies the people walking to observe the circumstances in the pond and change the iron stand platform that MBR membrane module was used in the pond, and this iron stand platform transverse arrangement and length are the same with the length of box to be equipped with stair respectively in both sides.

The invention overcomes the defects of the prior art, and the MBR coating wastewater treatment device which has the characteristics of high and stable effluent quality, low excess sludge yield, small occupied area, no limitation of setting occasions, capability of removing ammonia nitrogen and refractory organic matters and the like is manufactured.

Drawings

Fig. 1 is a schematic view of the present invention.

Detailed Description

The invention will be described in detail below with reference to the following drawings: fig. 1 shows, an MBR application effluent treatment plant, it includes rectangular water tank 1, and the front end of this water tank 1 is equipped with water inlet 2, and the rear end is equipped with the delivery port (not marking), 2 departments of water inlet are equipped with a

detachable grid

4, and 4 rear ends of this grid are equipped with biological bacterial pond 5, aeration tank 6, biomembrane pond 7, clean water basin 8 respectively in proper order, all be equipped with water proof baffle 9 between every pond, be connected through the water pump between biological bacterial pond 5 and the aeration tank 6, be connected through setting up 3 at least through-holes on water proof baffle 9 between aeration tank 6 and the biomembrane pond 7, be connected through the water hole at top between clean water basin 8 and the biomembrane pond 7 to be equipped with the mud through-hole bottom biomembrane pond 7, this mud through-hole connection outside suction pump carries out the extraction of mud.

Preferably, the method comprises the following steps: the biological strain pond 5 is internally divided into a collecting pond 51 and a reaction pond 52, the reaction pond 52 is provided with denitrifying bacteria, the front end in the collecting pond 52 is provided with grid bars 4, and the grid bars 4 are provided with intensive flowing water pores 53.

Preferably, the method comprises the following steps: the rear end of the biological strain tank 5 is provided with an aeration tank 6 through a water-stop sheet, the bottom of the aeration tank 6 is provided with an aeration pipe 10, the aeration pipe 10 is provided with uniformly distributed aeration holes 11, one side of the aeration tank 6 is provided with a strain bag, and nitrifying bacteria and phosphorus bacteria are placed in the strain bag.

Preferably, the method comprises the following steps: the rear end of the aeration tank 6 is provided with a biological membrane tank 7, at least one MBR membrane module 12 which is evenly arranged is arranged in the biological membrane tank 7, the membrane module 12 is fixed in the middle of the biological membrane tank through fixing holes which are arranged at two sides of the water tank, the bottom of the biological membrane tank is provided with an aeration pipe 11, the aeration pipe 11 is connected with an aeration pipe 10 in the aeration tank 6, and the aeration pipe 10 supplies oxygen through an external oxygen supply machine.

Preferably, the method comprises the following steps: one side top of water tank is equipped with one and can supplies the people to walk and observe the interior condition of pond and change iron stand platform 13 that interior MBR membrane module was used, and this iron stand platform 13 transversal arrangement and length are the same with the length of box to be equipped with stair 14 respectively in both sides.

Compared to many conventional biological water treatment processes, MBRs have the following major advantages:

1) the quality of the discharged water is high and stable

Due to the efficient separation effect of the membrane, the separation effect is far better than that of the traditional sedimentation tank, the treated effluent is extremely clear, suspended matters and turbidity are close to zero, bacteria and viruses are greatly removed, the effluent quality can be directly used as water for coating industry to recycle reclaimed water, and zero emission is realized.

2) Low residual sludge yield

The process can be operated under high volume load and low sludge load, the yield of the excess sludge is low (zero sludge discharge can be realized theoretically), and the sludge treatment cost is reduced.

3) Small floor area and no limitation of installation place

The bioreactor can maintain high-concentration microbial biomass, the volume load of a treatment device is high, and the occupied area is greatly saved; the process flow is simple, the structure is compact, the occupied area is saved, the process is not limited by the arrangement place, and the process can be made into a ground type, a semi-underground type and an underground type in any occasions.

4) Can remove ammonia nitrogen and refractory organics

Because the microorganism is completely intercepted in the bioreactor, the interception and growth of the microorganism with slow proliferation, such as nitrobacteria, are facilitated, and the nitrification efficiency of the system is improved.

⑴, the waste water of project is mainly the wash water, flow to the collecting pit automatically, the sewage waste water gets rid of the massive debris, floater, etc. through the grid, avoid the influence on subsequent equipment, the collecting pit function depends on the organic matter in the sewage as the carbon source, utilize the denitrification of denitrifying bacteria to change the nitrate, nitrite that flow back to the pond mud-water mixture into nitrogen, thus realize the denitrogenation of waste water, in addition, because the organic matter in the sewage is consumed in the course of denitrogenation, so the waste water COD is reduced at the same time.

⑵ the washing water contains other components, and the pH value is adjusted by neutralization to precipitate suspended particles.

⑶, because of the large amount of floating materials and sediments carried in the discharging process, the floating materials and sediments are collected by coarse filtration and then treated by solid waste.

⑷, pumping to an aeration tank by a pump for aeration, namely entering an aerobic stage, putting strains into the tank for culture, degrading or absorbing organic pollutants containing carbon, ammonia nitrogen and phosphorus in water by microorganisms, nitrifying bacteria and phosphorus bacteria in the activated sludge which is propagated in large quantities in the aeration state, thereby achieving the purpose of purifying the water quality.

⑸, the sludge-containing sewage in the biochemical reaction tank is filtered by the membrane to realize sludge-water separation, on one hand, microorganisms in the reaction tank are intercepted, the concentration of activated sludge in the tank is increased, and the degraded biochemical reaction is carried out more rapidly and thoroughly, on the other hand, due to the high filtering precision of the membrane, the clear and transparent effluent is ensured, and high-quality produced water is obtained.

⑹, arranging MBR membrane module system and matched water outlet, cleaning and purging system in the membrane tank, wherein the purging (aeration) in the MBR membrane module has two purposes, one is used for gas-water oscillation around the membrane module to keep the membrane surface clean, and the other is used for providing oxygen required by biodegradation.

⑺ and clean water is pumped into the clean water tank and pumped to each washing device, and an automatic water replenishing system is added to ensure less water due to volatilization.

Claims

1. The utility model provides a MBR application effluent treatment plant, it includes rectangular water tank, and the front end of this water tank of its characterized in that is equipped with the water inlet, and the rear end is equipped with the delivery port, water inlet department is equipped with a detachable grid strip, and this grid strip rear end is equipped with biological bacterial pond, aeration tank, biomembrane pond, clean water basin respectively in proper order, all be equipped with the water proof baffle between every pond, be connected through the water pump between biological bacterial pond and the aeration tank, be connected through setting up 3 at least through-holes on the water proof baffle between aeration tank and the biomembrane pond, be connected through the water hole at top between clean water basin and the biomembrane pond to be equipped with the mud through-hole bottom the biomembrane pond, this mud through-hole is connected outside suction pump and is carried out the extraction of mud.

2. The MBR coating wastewater treatment device as set forth in claim 1, wherein the biological bacteria tank is divided into a collection tank and a reaction tank, the reaction tank is provided with denitrifying bacteria, the front end of the collection tank is provided with a grid bar, and the grid bar is provided with dense flowing water pores.

3. The MBR coating wastewater treatment device as set forth in claim 2, wherein the aeration tank is provided at the rear end of the biological seed culture tank through a water-stop plate, an aeration pipe is provided at the bottom of the aeration tank, the aeration pipe is provided with uniformly distributed aeration holes, and a seed bag is provided at one side of the aeration tank, wherein nitrifying bacteria and phosphorus bacteria are placed in the seed bag.

4. The MBR coating wastewater treatment device as set forth in claim 3, wherein the aeration tank is provided at the rear end thereof with a biofilm tank, the biofilm tank is provided therein with at least one MBR membrane module which is arranged uniformly and fixed in the middle of the biofilm tank through fixing holes arranged at both sides of the water tank, and the bottom thereof is provided with an aeration pipe which is connected with an aeration pipe in the aeration tank, and the aeration pipe supplies oxygen through an external oxygen supply machine.

5. The MBR coating wastewater treatment device as set forth in claim 1 or 4, wherein the top of one side of the water tank is provided with an iron stand for people to walk to observe the conditions in the tank and replace the MBR membrane module in the tank, the iron stand is transversely arranged and has the same length as the tank body, and the two sides of the iron stand are respectively provided with stairs.