CN212315837U

CN212315837U - FSMBR + molecular membrane wastewater treatment device that raises pigs

Info

Publication number: CN212315837U
Application number: CN202020139698.6U
Authority: CN
Inventors: 任嬿; 徐丽亚; 许猛; 张峰; 陈小攀; 周梦莹; 陈晶晶
Original assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Current assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-01-08
Anticipated expiration: 2030-01-21

Abstract

The utility model relates to a FSMBR + molecular membrane wastewater treatment device that raises pigs, it belongs to sewage treatment technical field. The utility model discloses a sand setting catch basin, the anaerobism pond, the catch pit, good oxygen pond, mud storage pond, clean water basin and FSMBR + molecular membrane pond, the sand setting catch basin links to each other with the anaerobism pond, the anaerobism pond links to each other with good oxygen pond and catch pit respectively, good oxygen pond links to each other with mud storage pond, FSMBR + molecular membrane pond one side links to each other with good oxygen pond, FSMBR + molecular membrane pond opposite side links to each other with the clean water basin, be provided with FSMBR device and molecular membrane device in the FSMBR + molecular membrane pond. The utility model is reasonable and reliable, combines FSMBR and molecular membrane technology into a whole, and utilizes FSMBR technology to carry out earlier stage treatment on discharged sewage, thus providing more excellent and stable water quality for the molecular membrane treatment system; the molecular membrane technology is used for advanced treatment of the pig raising wastewater, and ensures that the pig raising wastewater treatment reaches the high water quality standard.

Description

FSMBR + molecular membrane wastewater treatment device that raises pigs

Technical Field

The utility model relates to a processing apparatus especially relates to a FSMBR + molecular film waste water treatment device that raises pigs, and it belongs to sewage treatment technical field.

Background

The pig raising wastewater has the characteristics of large discharge amount, complex water quality, dispersed discharge points, difficult collection and treatment and the like. After pig raising wastewater which is not properly treated and is directly discharged enters the external environment, serious harm is caused to soil, water and atmospheric environment, and carried germs and the like even cause various biological pollutions such as disease transmission and the like, thereby seriously threatening the environmental safety. Therefore, under the environmental background of emphasizing the sustainable development of green, the active search for the treatment of the pig-raising wastewater which is economical and environment-friendly is the key of the healthy development of the pig-raising industry.

A Membrane Bioreactor (MBR) is a new wastewater treatment technology which is developed rapidly at home and abroad in recent years. According to research and application of MBR treatment of the existing pig-raising wastewater, compared with conventional treatment, MBR treatment is simpler, the treatment effect is better, the sludge yield is less, but the independent treatment effect cannot stably meet the discharge standard, so that advanced treatment is required to be added subsequently, and the effluent can be recycled. However, as the production cost of organic membranes is significantly reduced, membrane fouling has become a bottleneck limiting further wide application of membrane bioreactors, which not only causes frequent cleaning and replacement of components and reduction of the service life of membranes, but also is a main reason directly causing increase of water production resistance, increase of aeration rate, increase of operation energy consumption and increase of operation difficulty. To address this problem, the use of inorganic flat sheet membranes instead of conventional MBR membranes was effectively improved and the treatment was designated as FSMBR.

The molecular membrane treatment is usually used as one of reverse osmosis treatments, and has the technical advantages of high water yield, simple treatment flow, less investment, small occupied area and the like. Can be widely used for advanced treatment of industrial wastewater, reclaimed water reuse and preparation of high-quality treatment water. The interception rate of soluble COD, ammonia nitrogen, phosphorus and other pollutants can reach more than 90 percent, and the interception rate of soluble substances of some macromolecules can even reach 99 percent, so the method is an innovative breakthrough and an important supplement of the current reverse osmosis membrane treatment. However, molecular membrane technology often suffers from fouling and deterioration of the membrane during operation. Therefore, it is necessary to select a suitable pretreatment for preventing the contamination of the membrane and delaying the completion of the deterioration of the membrane.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a water supply system which has reasonable and reliable structural design, integrates the FSMBR and the molecular membrane technology, utilizes the FSMBR technology to carry out early treatment on the discharged sewage, and can provide more excellent and stable water quality for the molecular membrane treatment system; the molecular membrane technology is used as an FSMBR + molecular membrane pig-raising wastewater treatment device for advanced treatment of pig-raising wastewater and ensuring that the pig-raising wastewater treatment reaches the high water quality standard.

The utility model provides a technical scheme that above-mentioned problem adopted is: this FSMBR + molecular membrane wastewater treatment device that raises pigs, including grit catch basin, anaerobism pond, collecting pit, good oxygen pond, mud storage pond and clean water basin, the grit catch basin links to each other with the anaerobism pond, and the anaerobism pond links to each other with good oxygen pond and collecting pit respectively, and good oxygen pond links to each other its characterized in that with mud storage pond: still include FSMBR + molecular film pond, FSMBR + molecular film pond one side links to each other with good oxygen pond, and this FSMBR + molecular film pond opposite side links to each other with the clean water basin, is provided with FSMBR device and molecular film device in the FSMBR + molecular film pond.

As preferred, the FSMBR device includes the air-blower, the aeration pipe, the aeration hole, and diaphragm baffle and FSMBR membrane group, this FSMBR membrane group fixed mounting are in diaphragm baffle's top, install the aeration pipe under the diaphragm baffle, and the aeration hole is installed to the one end of aeration pipe, and the other end of this aeration pipe is connected with the air-blower.

As preferred, the molecular membrane device is including a jar body, molecular membrane, support, outlet pipe, suction pump and inlet tube, install a jar body directly over the support, the inside of jar body is fixed with the molecular membrane, and jar body one end is connected with the inlet tube, and jar body other end top is connected with the outlet pipe, and the output of outlet pipe links to each other with the suction pump.

Preferably, the utility model discloses still include mechanical grid, mechanical grid sets up at sand setting catch basin front end.

Preferably, the utility model discloses still include the methane tank, the methane tank is linked together with the anaerobism pond, and the anaerobism pond is equipped with the elevator pump with the one end in good oxygen pond, and the other end in anaerobism pond is linked together with the collecting pit.

Preferably, the utility model discloses still include degassing unit, degassing unit sets up in the clean water basin top.

Preferably, the output of the air blower is arranged at the bottom of the FSMBR device.

Preferably, the top of the molecular membrane device is communicated with the input end of the suction pump, and the output end of the suction pump is communicated with the clean water tank.

Preferably, FSMBR membrane group chooses for use dull and stereotyped ceramic diaphragm.

Preferably, the membrane material of the molecular membrane 7 of the present invention is tetrafluoroethylene.

Compared with the prior art, the utility model, have following advantage and effect: overall structure reasonable in design is reliable, and this FSMBR + molecular film waste water treatment device of raising pigs carries out the preliminary treatment through mechanical grid, grit catch basin to the waste water of raising pigs, carries out biological treatment through anaerobism pond, good oxygen pond to waste water, and the waste water through secondary treatment and then carries out the advanced treatment through FSMBR + molecular film device. Compared with the existing structure, the device combines the FSMBR and the molecular membrane technology for treating the pig-raising wastewater, and the FSMBR treatment is used as the pretreatment of the molecular membrane treatment, so that the high-quality and stable water quality of the supplied water can be provided for the molecular membrane treatment system, the pollution of the molecular membrane can be effectively avoided, and the degradation of the membrane can be delayed; the molecular membrane is used for advanced treatment of the pig raising wastewater, and can ensure that the treatment of the pig raising wastewater reaches the high water quality standard.

Drawings

Fig. 1 is a schematic flow chart of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the FSMBR apparatus according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a molecular membrane device according to an embodiment of the present invention.

In the figure: FSMBR + molecular membrane pool A, FSMBR device A1, molecular membrane device A2 and wastewater F;

FSMBR device a 1: the device comprises a blower 1, an aeration pipe 2, aeration holes 3, a diaphragm baffle 4 and an FSMBR membrane group 5;

molecular membrane device a 2: a tank body 6, a molecular membrane 7, a support 8, a water outlet pipe 9, a suction pump 10 and a water inlet pipe 11;

the system comprises a sand setting and water collecting tank 12, an anaerobic tank 13, a collecting tank 14, an aerobic tank 15, a sludge storage tank 16, a clean water tank 17, a methane tank 18, a disinfection device 19 and a mechanical grid 20.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples are given.

Referring to fig. 1 to 3, the FSMBR + molecular membrane swine wastewater treatment device of the embodiment includes a grit collecting tank 12, an anaerobic tank 13, a collecting tank 14, an aerobic tank 15, a sludge storage tank 16, an FSMBR + molecular membrane tank a, and a clean water tank 17, wherein the grit collecting tank 12 is connected to the anaerobic tank 13, the anaerobic tank 13 is respectively connected to the aerobic tank 15 and the collecting tank 14, the aerobic tank 15 is respectively connected to the sludge storage tank 16 and the FSMBR + molecular membrane tank a, and the FSMBR + molecular membrane tank a is connected to the clean water tank 17. The FSMBR + molecular membrane pool A is internally provided with an FSMBR device A1 and a molecular membrane device A2, the outside of the FSMBR + molecular membrane pool A is also provided with an air blower 1, the output end of the air blower 1 is arranged at the bottom of the FSMBR device A1, the air suction pump 10 is also arranged, the top of the molecular membrane device A2 is communicated with the input end of the air suction pump 10, and the output end of the air suction pump 10 is communicated with the clean water pool 17.

The FSMBR device A1 comprises an FSMBR membrane group 5, a membrane baffle 4, an aeration pipe 2, aeration holes 3 and an air blower 1, wherein the FSMBR membrane group 5 is fixedly arranged above the membrane baffle 4, the aeration pipe 2 is fixedly arranged right below the membrane baffle 4, the aeration holes 3 are fixedly arranged on one side of the aeration pipe 2 close to the baffle, and one end of the aeration pipe 2 close to an aerobic tank 15 is connected with the air blower 1; the FSMBR membrane group 5 adopts a flat ceramic membrane.

The molecular membrane device a2 of this embodiment includes a jar body 6, a molecular membrane 7, a support 8, a water inlet pipe 11, a water outlet pipe 9 and a suction pump 10, and a jar body 6 is fixedly installed directly over the support 8, and the inside of the jar body 6 is fixed with the molecular membrane 7, and the one end of the jar body 6 close to the FSMBR device a1 is connected with the water inlet pipe 11, and the one end top of the jar body 6 far away from the FSMBR is connected with the water outlet pipe 9, and the output end of the water outlet pipe 9.

The membrane material of the molecular membrane 7 of this example was tetrafluoroethylene.

In this embodiment, an air blower 1 is arranged at one end of the outside of the aerobic tank 15, which is close to the anaerobic tank 13, an output end of the air blower 1 is arranged at the bottom of the aerobic tank 15, a sludge pump is further arranged at one end of the aerobic tank 15, which is far away from the anaerobic tank 13, and an output end of the sludge pump is communicated with a sludge storage tank 16.

The front end of the grit collecting tank 12 of the present embodiment is provided with a mechanical grid 20.

The biogas tank 18 is communicated with the anaerobic tank 13, a lift pump is arranged at one end of the anaerobic tank 13 close to the aerobic tank 15, and one end far away from the aerobic tank 15 is communicated with the collecting tank 14.

A disinfecting device (19) is also arranged above the clean water tank 17, and a flowmeter is fixedly arranged at one end of the suction pump 10 close to the clean water tank 17.

In the implementation process of the embodiment, after the pig raising wastewater F passes through the mechanical grating 20 and the grit collecting tank 12, some particulate matters and large suspended matters are removed, solid-liquid separation of the wastewater is realized, and meanwhile, the flow rate of the wastewater is stabilized through the grit collecting tank 12. The sewage flows through the anaerobic tank 13 for anaerobic biological treatment, the generated sludge residues are discharged to the collection tank 14 for composting by sedimentation, and simultaneously the generated gas is pumped to the methane tank 18 for methane utilization. The sewage through anaerobic biological treatment further flows into the aerobic tank 15 through the lift pump to be subjected to aerobic biological treatment, the air blower 1 is arranged outside the aerobic tank 15, and the aeration disc is arranged at the bottom of the aerobic tank to increase the oxygen content in the aerobic tank and improve the efficiency of biodegradation and the survival rate of bacterial colonies. The water source after the aerobic reaction tank is pumped into the FSMBR + molecular membrane tank A by a lift pump for advanced treatment, and the air blower 1 provides sufficient oxygen for the membrane bioreactor through the aeration pipe 2 and the aeration holes 3, so that the reaction can be better carried out. The membrane baffle plate 4 is arranged right below the membrane group, so that gas generated during aeration can better scour the membrane surface in the range of the assembly, and the membrane group can improve the problem of serious membrane pollution by replacing traditional materials with flat ceramic membranes. The clear water treated by the FSMBR device A1 is further sent into a molecular membrane device, the material of the molecular membrane 7 is a tetrafluoroethylene membrane, the molecular membrane 7 is vertically arranged, and flowing liquid completely vertically penetrates through membrane holes to intercept impurities in the liquid in a full filtration mode, so that the quality of the effluent water reaches a high standard. The water source treated by the FSMBR + molecular membrane pool A is conveyed into the clean water pool 17 by the suction pump 10, the water flow is recorded by a flow meter arranged at one end of the suction pump 10 close to the clean water pool 17, and a disinfection device (19) arranged at the top of the clean water pool 17 can disinfect the water source in the clean water pool 17.

In the embodiment, the FSMBR technology and the molecular membrane 7 technology are combined into a whole, and the FSMBR technology is used for carrying out pretreatment on the discharged sewage, so that higher-quality and stable water quality of the supplied water can be provided for a molecular membrane treatment system; the molecular membrane technology is used for advanced treatment of the pig raising wastewater, and can ensure that the treatment of the pig raising wastewater reaches the high water quality recyclable standard, thereby reducing the environmental pollution caused by the discharge of the pig raising wastewater, improving the resource utilization rate and reducing the harm to the environment. The whole process can be used for scientifically and effectively treating sewage, and simultaneously, the method can be used for utilizing residue and waste, saving water resources, reducing pollution and protecting the environment.

And will be apparent to those skilled in the art from the foregoing description.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a FSMBR + molecular membrane wastewater treatment device that raises pigs, includes grit catch basin (12), anaerobism pond (13), collecting pit (14), good oxygen pond (15), mud storage tank and clean water basin (17), grit catch basin (12) link to each other with anaerobism pond (13), and anaerobism pond (13) link to each other with good oxygen pond (15) and collecting pit (14) respectively, and good oxygen pond (15) link to each other its characterized in that with mud storage tank: still include FSMBR + molecular film pond (A), FSMBR + molecular film pond (A) one side links to each other with good oxygen pond (15), and this FSMBR + molecular film pond (A) opposite side links to each other with clear water pond (17), is provided with FSMBR device (A1) and molecular film device (A2) in the FSMBR + molecular film pond (A).

2. The FSMBR + molecular membrane swine wastewater treatment plant of claim 1, wherein: FSMBR device (A1) includes air-blower (1), aeration pipe (2), aeration hole (3), diaphragm baffle (4) and FSMBR membrane group (5), and this FSMBR membrane group (5) fixed mounting is in the top of diaphragm baffle (4), installs aeration pipe (2) under diaphragm baffle (4), and aeration hole (3) are installed to the one end of aeration pipe (2), and the other end of this aeration pipe (2) is connected with air-blower (1).

3. The FSMBR + molecular membrane swine wastewater treatment plant of claim 1, wherein: the molecular membrane device (A2) comprises a tank body (6), a molecular membrane (7), a support (8), a water outlet pipe (9), a suction pump (10) and a water inlet pipe (11), wherein the tank body (6) is installed right above the support (8), the molecular membrane (7) is fixed inside the tank body (6), one end of the tank body (6) is connected with the water inlet pipe (11), the water outlet pipe (9) is connected above the other end of the tank body (6), and the output end of the water outlet pipe (9) is connected with the suction pump (10).

4. The FSMBR + molecular membrane swine wastewater treatment plant of claim 1, wherein: the sand settling and water collecting device further comprises a mechanical grating (20), wherein the mechanical grating (20) is arranged at the front end of the sand settling and water collecting tank (12).

5. The FSMBR + molecular membrane swine wastewater treatment plant of claim 1, wherein: the biogas digester further comprises a biogas tank (18), the biogas tank (18) is communicated with the anaerobic tank (13), one ends of the anaerobic tank (13) and the aerobic tank (15) are provided with lift pumps, and the other end of the anaerobic tank (13) is communicated with the collection tank (14).

6. The FSMBR + molecular membrane swine wastewater treatment plant of claim 1, wherein: the device also comprises a disinfection device (19), wherein the disinfection device (19) is arranged above the clean water tank (17).

7. The FSMBR + molecular membrane swine wastewater treatment plant of claim 2, wherein: the output end of the blower (1) is arranged at the bottom of the FSMBR device (A1).

8. The FSMBR + molecular membrane swine wastewater treatment plant of claim 3, wherein: the top of the molecular membrane device (A2) is communicated with the input end of the suction pump (10), and the output end of the suction pump (10) is communicated with the clean water tank (17).

9. The FSMBR + molecular membrane swine wastewater treatment plant of claim 2, wherein: the FSMBR membrane group (5) is a flat ceramic membrane.

10. The FSMBR + molecular membrane swine wastewater treatment plant of claim 3, wherein: the membrane material of the molecular membrane (7) is tetrafluoroethylene.