CN202099159U

CN202099159U - Biomembrane aeration device of composite solid carriers

Info

Publication number: CN202099159U
Application number: CN2011201147240U
Authority: CN
Inventors: 张贤彬; 张浦平; 童维忠; 陈江伯
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-19
Filing date: 2011-04-19
Publication date: 2012-01-04
Anticipated expiration: 2021-04-19

Abstract

A biomembrane aeration device of composite solid carries belongs to treatment devices for industrial organic waste water or domestic water in cities. A shell is in a cylindrical shape or a rectangle shape. Pore boards arranged horizontally to divide a cavity inside the shell into a biological nitrification aeration area, a first filtering area, a second filtering area and a third filtering area from bottom to top. A sewage inlet pipe is arranged at the lower portion of the shell and communicated with a water distribution pipe inside the biological nitrification aeration area. The front end of the sewage inlet pipe is connected with a pressure water pump, and an air inlet pipe connected with a fan extends into the shell to be communicated with an O-shaped air distribution pipe arranged at the bottom of the biological nitrification aeration area. 4A zeolite is filled in the biological nitrification aeration area. A water outlet pipe is arranged on top of the shell. The biological oxidation is integrated with closure floating solid so that secondary sedimentation tanks are omitted. The biomembrane aeration device has the advantages of being small in covered area, low in energy consumption, large in volume loading and good in treatment effects.

Description

Composite solid carrier biofilm aerating apparatus

Technical field

The utility model relates to sewage disposal device, specifically, is the device that adopts biological chemistry processing and filtration treatment industrial organic waste water and city domestic sewage.

Background technology

China is a lack of water country, and 1/4th of not enough people from world average of water resources ownership per capita is classified as one of 13 lack of water countries by Food and Argriculture OrganizationFAO.

The current low-carbon economy of advocating economizes on resources, and middle water reuse makes full use of water resources and mentioned agenda, and indexs such as a big chunk sewage treatment facility nitrogen phosphorus of building in the past do not reach the new standard requirement, are badly in need of advanced treatment; Percolate is big owing to composition complex process difficulty, existing general biochemical process, and physico-chemical process is handled and is difficult to reach requirement, admittedly be badly in need of advanced treatment apparatus.

The utility model content

The purpose of the utility model provides that a kind of floor space is little, and energy consumption is low, and processing costs economizes, and volumetric loading is big, the composite solid carrier biofilm aerating apparatus that treatment effect is good.

This novel purpose is achieved in that a kind of composite solid carrier biofilm aerating apparatus; It is characterized in that housing is round shape or cuboid, horizontally disposed orifice plate is divided into the biological nitration aeration zone from bottom to top with the housing inner chamber; First filtrating area, second filtrating area and the 3rd filtrating area; Lower housing portion is provided with sewage water inlet pipe; Sewage water inlet pipe is communicated with water distributor in the biological nitration aeration zone; The sewage water inlet pipe front end is connected with pressure pump, and the inlet pipe that is connected with blower fan stretches in the housing and is communicated with the O type gas distribution pipe that is arranged on bottom, biological nitration aeration zone; The 4A zeolite is housed in the bio-aeration district, and case top is provided with rising pipe.

The composite filtering material of granulated active carbon and bar shaped activated carbon is housed in above-mentioned first filtrating area; The composite filtering material of shelly gac and micropore haydite is housed in second filtrating area; The composite filtering material of anthracite and silica sand is housed in the 3rd filtrating area.

Also have the pre-reaction pond, the water outlet on top, pre-reaction pond is connected with the import of pressure pump.

Also have the pond, the pond is provided with sewage induction pipe; Also have return water pipe, return water pipe one end is connected with the rising pipe of housing, and the other end is connected with the sewage induction pipe in pond, is provided with valve on return water pipe and the sewage induction pipe.

This composite solid carrier biofilm aerating apparatus mainly is made up of biological nitration aeration zone and a plurality of filtrating area.In the biological nitration aeration zone, various types of bio-film colonizations are realized biological nitration and denitrification under oxygenation and anoxic condition, realize the purpose of synchronous denitrification dephosphorizing.

This device has been realized short distance nitration and denitrification, has following advantage: 1. the nitrated stage can reduce 25%; 2. can reduce the organic carbon source about 40%, reduce working cost; 3. the reaction times shortens, and reactor volume can reduce about 30%-40%, has higher denitrification rate, and the denitrification rate of NO2 is high by about 63% than NO3 usually; 4.Sludge yield reduces, and nitrifying process can produce mud about 33%-35% less, can produce mud about 55% less in the denitrification process.

Compared with prior art, the utlity model has following characteristics and advantage: these novel maximum characteristics are to integrate bio-oxidation and hold back suspended solids, and this is a unique point, and other filtration units do not possess, and have saved follow-up secondary sedimentation basins.This technology organism volumetric loading is big, and hydraulic load is big, and hydraulic detention time shortens, thereby floor space is little, reduced investment, and simple and convenient management, treat effluent is effective.

This novel composite solid carrier development is seated in the lower region of filter tank; (under the ultramicropore aeration condition) realized the biological nitrification process of waste water under aerobic condition; Remove organism, reduce and pollute, this composite solid carrier is zeolite (outsourcing finished product) molecular sieve; Preferred 4A zeolite, it has the space structure form of rule.Contain many groups in its crystalline structure through sio4 and two kinds of tetrahedrons of AIo4 that Sauerstoffatom couples together, form a kind of microporous, the very accurate porosu solid of pore structure, for 10mm to 30mm particle Bi Chong ≦ 1. be suitable for hanging before death film, mikrobe rest ground becomes a kind of active bio carrier; Under aerobic condition, the organism in the digestion waste water, this upright intravital mikrobe; Not only the organism to sewage has higher removal, also has the good adsorption performance, removes hardness.WWT and middle water reuse effect have been improved greatly.Can realize the denitrification process of waste water at the one the second filtrating areas; Realize the purpose of waste water denitrogenation dephosphorizing in short distance nitration and denitrification process.

The utility model composite solid carrier biofilm aerating filter device bottom is the waste water import, and top is for purifying the outlet of back water, and the flow direction of water is a upflowing; Intake water outlet, GWR in the purification of water quality process; Back flushing all can realize automatic control, and is easy to operate.

Require and water yield requirement according to water quality treatment, composite solid carrier biofilm aerating filter device, but the multiple mode of series operation or parallel running satisfies the requirement of the different quality water yield.

The utility model WWT can obtain removal effect preferably, sees table 1

The sewage type	COD%	BOD5%	SS%	Remarks
					Sewage	91.8%	94%	97%	Cooperate with technology
Municipal wastewater	90%	96%	92%	Cooperate with technology
					The garbage filter advanced treatment	92%	96.5%	94%	Cooperate with technology

The utility model composite solid carrier biofilm aerating filter device is applicable to city domestic sewage, similar city domestic sewage, and industrial organic waste water, percolate is handled, water reuse novel all-in-one sewage purification advanced treatment process in being specially adapted to.

Description of drawings

Fig. 1 is the structural representation (by composite solid carrier biofilm aeration tank, pre-reaction pond and pond are formed) of an embodiment of the utility model.

Fig. 2 is the synoptic diagram that the series connection of composite solid carrier biofilm shown in Figure 1 aeration tank is used.

Fig. 3 is that synoptic diagram is used in the parallel connection of composite solid carrier biofilm shown in Figure 1 aeration tank.

Embodiment

Fig. 1 illustrates; A kind of composite solid carrier biofilm aerating apparatus, housing 1 is round shape or cuboid, horizontally disposed orifice plate is divided into biological nitration aeration zone 1a from bottom to top with the housing inner chamber; The first filtrating area 1b, the second filtrating area 1c and the 3rd filtrating area 1d; Lower housing portion is provided with sewage water inlet pipe 2; Sewage water inlet pipe is communicated with water distributor in the biological nitration aeration zone; The sewage water inlet pipe front end is connected with pressure pump 3, and the inlet pipe 7 that is connected with blower fan stretches in the housing and is communicated with the O type gas distribution pipe 7a that is arranged on bottom, biological nitration aeration zone; The 4A zeolite is housed in the bio-aeration district, and case top is provided with rising pipe 4.

The composite filtering material of granulated active carbon and bar shaped activated carbon is housed in the above-mentioned first filtrating area 1b; The composite filtering material of shelly gac and micropore haydite is housed in the second filtrating area 1c; The composite filtering material (above-mentioned shell structure is composite solid carrier biofilm aeration tank) of anthracite and silica sand is housed in the 3rd filtrating area 1d.

Also have pre-reaction pond 5, the water outlet on top, pre-reaction pond is connected with the import of pressure pump.

Also have pond 6, pond 6 is provided with sewage induction pipe; Also have return water pipe 8, return water pipe 8 one ends are connected with the rising pipe 4 of housing, and the other end is connected with the sewage induction pipe in pond, is provided with valve on return water pipe and the sewage induction pipe.

The oxidation of this new bio and the suspended solids that dams are in one, and this is that other filtration units do not possess, and has saved secondary sedimentation basins; This device is by the bottom water inlet, and the top draining progressively purifies.This device is that round shape also can be as van-type, according to water quality, water yield requirement, this device can connect (like Fig. 2) use, also can parallel connection (like Fig. 3) use.

Claims

1. composite solid carrier biofilm aerating apparatus; It is characterized in that housing is round shape or cuboid, horizontally disposed orifice plate is divided into biological nitration aeration zone (1a) from bottom to top with the housing inner chamber; First filtrating area (1b), second filtrating area (1c) and the 3rd filtrating area (1d); Lower housing portion is provided with sewage water inlet pipe (2); Sewage water inlet pipe is communicated with water distributor in the biological nitration aeration zone; The sewage water inlet pipe front end is connected with pressure pump (3), and the inlet pipe that is connected with blower fan (7) stretches in the housing and is communicated with the O type gas distribution pipe (7a) that is arranged on bottom, biological nitration aeration zone; The 4A zeolite is housed in the bio-aeration district, and case top is provided with rising pipe (4).

2. according to the said composite solid carrier biofilm of claim 1 aerating apparatus, it is characterized in that also have pre-reaction pond (5), the water outlet on top, pre-reaction pond is connected with the import of pressure pump.

3. according to the said composite solid carrier biofilm of claim 2 aerating apparatus, it is characterized in that also have pond (6), pond (6) are provided with sewage induction pipe; Also have return water pipe (8), return water pipe (8) one ends are connected with the rising pipe (4) of housing, and the other end is connected with the sewage induction pipe in pond, is provided with valve on return water pipe and the sewage induction pipe.