CN206289126U

CN206289126U - A kind of sanitary sewage AAO processing systems

Info

Publication number: CN206289126U
Application number: CN201621342624.2U
Authority: CN
Inventors: 廖斌斌; 许清霖; 林立兴; 游成本; 张俊虹; 郭辉; 吴文亮; 张望文
Original assignee: Fujian Province Green Ecological Environmental Protection Co Ltd
Current assignee: Fujian Province Green Ecological Environmental Protection Co Ltd
Priority date: 2016-12-08
Filing date: 2016-12-08
Publication date: 2017-06-30
Anticipated expiration: 2026-12-08

Abstract

The utility model is related to a kind of sanitary sewage AAO processing systems, include and setting pot together, anaerobic pond, anoxic pond, Aerobic Pond, MBR ponds, sterilization pool and clear water reserviors are sequentially communicated by pipeline, filled out in the Aerobic Pond and be provided with biologic packing material, pipeline between Aerobic Pond and MBR ponds is also associated with leading to the nitrification liquid return duct of anoxic pond, is also associated with leading to the mud return line of anaerobic pond on the MBR ponds.The utility model sanitary sewage AAO processing system denitrogenation dephosphorizing efficiency highs, stable effluent quality is up to standard, reaches country-level A standards, and turbidity is low, and sterilization of high efficiency is environment friendly and pollution-free.

Description

A kind of sanitary sewage AAO processing systems

Technical field

The utility model is related to a kind of sewage AAO processing systems living, belongs to sewage treatment area.

Background technology

With the development of economic society, water pollution is increasingly becoming the conditionality factor of human social development, and sanitary sewage is made The excessive emissions of the elements such as one of main cause for water pollution, nitrogen phosphorus cause serious body eutrophication problem, sanitary sewage Treatment is significant to human society.

Although the conventional technique of sewage disposal can denitrogenation dephosphorizing, but its own there is also some limitation, and denitrogenation is micro- Biological different with the life habit of dephosphorization microorganism, denitrogenation and dephosphorization cannot simultaneously obtain good effect, so that denitrogenation is removed Phosphorus inefficiency, the change of influent quality often causes the fluctuation of effluent quality, and effluent quality is unstable.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of structure novelty, and treatment effeciency is high, stable effluent quality Sanitary sewage AAO processing systems.

The utility model is realized using following scheme：A kind of sanitary sewage AAO processing systems, including connected successively by pipeline Logical setting pot together, anaerobic pond, anoxic pond, Aerobic Pond, MBR ponds, sterilization pool and clear water reserviors, fill out in the Aerobic Pond and are provided with Biologic packing material, the pipeline between Aerobic Pond and MBR ponds is also associated with leading to the nitrification liquid return duct of anoxic pond, on the MBR ponds It is also associated with leading to the mud return line of anaerobic pond.

Further, boring aeration pipe is provided with anoxic pond and MBR ponds, micro-pore aeration is provided with the Aerobic Pond Disk.

Further, drainpipe is connected with the sterilization pool, discharge pipeline is connected with the mud return line.

Further, it is provided with quartz burner in the sterilization pool；It is also associated with rinsing in MBR ponds on clear water reserviors The backwash tube of membrane module, backwashing pump is provided with the backwash tube.

Compared with prior art, the utility model has the advantages that：The utility model sanitary sewage AAO processing systems System denitrogenation dephosphorizing efficiency high, stable effluent quality is up to standard, reaches country-level A standards, and turbidity is low, sterilization of high efficiency, environmentally friendly nothing Pollution.

To make the purpose of this utility model, technical scheme and advantage become more apparent, below will be by specific embodiment And relevant drawings, the utility model is described in further detail.

Brief description of the drawings

Fig. 1 is the utility model constructed embodiment schematic diagram；

Fig. 2 is anoxic pond organigram in the utility model embodiment；

Fig. 3 is Aerobic Pond organigram in the utility model embodiment；

Label declaration in figure：1- setting pots, 2- anaerobic ponds, 3- anoxic ponds, 4- Aerobic Ponds, 5-MBR ponds, 6- sterilization pools, 7- Clear water reserviors, 8- biologic packing materials, 9- nitrification liquids return duct, 10- mud return lines, 11- boring aeration pipes, 12- microporous aeration discs, 13- diving mixers.

Specific embodiment

As shown in Fig. 1 ~ 3, a kind of sanitary sewage AAO processing systems, including sand setting together is sequentially communicated by pipeline Pond 1, anaerobic pond 2, anoxic pond 3, Aerobic Pond 4, MBR ponds 5, sterilization pool 6 and clear water reserviors 7, fill out in the Aerobic Pond and are provided with biology and fill out Material 8, nitrobacteria is enriched with biologic packing material 8, can effectively improve the Nitrification rate of nitrobacteria；Aerobic Pond and MBR ponds it Between pipeline be also associated with lead to anoxic pond nitrification liquid return duct 9, be also associated with the MBR ponds lead to anaerobic pond sludge Return duct 10.

Impurity and larger precipitation in the removal sewage of setting pot 1, in anaerobic pond, polyP bacteria is released using organic matter Phosphorus is acted on；In anoxic pond, denitrifying bacteria will flow back the nitrate reduction for coming into nitrogen using organic matter, reach denitrogenation Effect；In Aerobic Pond, the mineralized nitrogen in sewage is nitrate by nitrobacteria, is then refluxed for anoxic pond, is released phosphorus bacterium and is existed Excess absorbs phosphorus in aerobic environment, and the organic matter in sewage is also largely consumed by aerobic bacteria；It is remaining organic finally in MBR ponds Thing is further removed, mud-water separation, a part of sludge reflux to anaerobic pond, a part of row outward, and clear water entrance disappears in MBR ponds Malicious pond sterilization, is then partly into alternate source of the clear water reserviors as backwash, part discharge.

Using MBR ponds, the efficiency high of separation of solid and liquid；The sludge quantity of generation is few；Can impact resistance, stable effluent quality is turbid Degree is low.

In the present embodiment, boring aeration pipe 11 is provided with anoxic pond and MBR ponds, micropore is provided with the Aerobic Pond Aeration plate 12, is additionally provided with diving mixer 13 in anoxic pond, boring aeration pipe and microporous aeration disc aeration are uniform；The gas of generation Bubble is small, and contact surface is big, and the mass-transfer efficiency of oxygen is high, and the utilization rate of oxygen is high, and cost is relatively low.

In the present embodiment, it is provided with quartz burner in the sterilization pool；Sterilization, germicidal efficiency are carried out using ultraviolet It is high；It is environment friendly and pollution-free without chemical agent；Floor space is small, simple to operate；Disinfection Effect stabilization.

In the present embodiment, it is also associated with rinsing the backwash tube of membrane module in MBR ponds, the recoil on clear water reserviors Wash and backwashing pump is provided with pipe.

In the present embodiment, the spacing in anoxic pond and MBR ponds between adjacent two boring aeration pipes is 600mm, anoxic The setting height(from bottom) of the boring aeration pipe in pond is 300mm, and the setting height(from bottom) of MBR ponds middle punch aeration tube is 200mm.

In the present embodiment, the spacing in the Aerobic Pond between adjacent two microporous aeration disc 12 is 600mm, micro-pore aeration The setting height(from bottom) of disk 12 is 300mm.

In the present embodiment, drainpipe is connected with the sterilization pool, discharge pipeline is connected with the mud return line.

The course of work of the utility model sanitary sewage AAO processing systems：（1）Sewage enters setting pot, precipitates, crosses elimination Except the impurity that the inside is larger；（2）Sewage enters anaerobic pond with returned sludge, and polyP bacteria consumes organic matter, storage energy herein, Discharge phosphorus；（3）Sewage enters into anoxic pond with the nitrification liquid of backflow, and in the presence of denitrifying bacteria, the NO2- in water becomes Into nitrogen, so as to reach the purpose denitrogenated；（4）Water from anoxic pond enters into Aerobic Pond, is nitrified on biologic packing material Effect, a nitrification liquid part for generation is back to anoxic pond, is partly into MBR ponds；（5）In MBR ponds, organic matter absorption drop Solution, mud-water separation, the clear water separated enters into sterilization pool, and the sludge of retention makes holding activated sludge higher in MBR ponds dense Degree, while the sludge in MBR ponds is back to anaerobic pond by mud return line；（6）The water of MBR ponds output is disappeared in sterilization pool Poison；Water part storage after sterilization is used as the water source of membrane module flushing in MBR ponds in clear water reserviors, and remainder is drained.

Table 1 is raw sewerage water quality, and table 2 is to process the clear water water quality for obtaining through the system, and effluent quality meets Country-level A standards.

Table 1

Table 2

Above-listed preferred embodiment, is further described to the purpose of this utility model, technical scheme and advantage, Should be understood that and the foregoing is only preferred embodiment of the present utility model, be not used to limit the utility model, it is all Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc. should be included in this practicality Within new protection domain.

Claims

1. a kind of sanitary sewage AAO processing systems, it is characterised in that：Including by pipeline be sequentially communicated setting pot together, Anaerobic pond, anoxic pond, Aerobic Pond, MBR ponds, sterilization pool and clear water reserviors, fill out in the Aerobic Pond and are provided with biologic packing material, Aerobic Pond and Pipeline between MBR ponds is also associated with leading to the nitrification liquid return duct of anoxic pond, is also associated with leading to anaerobic pond on the MBR ponds Mud return line.

2. AAO processing systems according to claim 1, it is characterised in that：Boring aeration is provided with anoxic pond and MBR ponds Pipe, microporous aeration disc is provided with the Aerobic Pond.

3. AAO processing systems according to claim 1, it is characterised in that：Drainpipe is connected with the sterilization pool, it is described Discharge pipeline is connected with mud return line.

4. AAO processing systems according to claim 1, it is characterised in that：Quartz burner is provided with the sterilization pool； It is also associated with rinsing the backwash tube of membrane module in MBR ponds on clear water reserviors, backwashing pump is provided with the backwash tube.