CN2659883Y

CN2659883Y - Domestic sewage treatment plant

Info

Publication number: CN2659883Y
Application number: CN 03278792
Authority: CN
Inventors: 张林生; 林丰; 陈恩风
Original assignee: JIANGDU HUALUN HUAJI ENVIRONMENTAL PROTECTION EQUIPMENT FACTORY; Southeast University
Current assignee: JIANGDU HUALUN HUAJI ENVIRONMENTAL PROTECTION EQUIPMENT FACTORY; Southeast University
Priority date: 2003-09-24
Filing date: 2003-09-24
Publication date: 2004-12-01
Anticipated expiration: 2013-09-24

Abstract

The utility model relates to a sewage purification technique device which is principally composed of a regulation anaerobic pool, a hydrolytic acidified pool and an aerobic pool which are mutually communicated, wherein the regulation anaerobic pool is provided with a sewerage inlet; filler material of polyester non-woven fabrics is arranged in the hydrolytic acidified pool; a hollow ultrafiltration membrane is arranged in the aerobic pool, and is communicated with a water absorption tube; a water jet aspirator is connected in series on the water absorption tube, and the other end of the water jet aspirator is connected with a drainage tube. The utility model overcomes the phenomenon that water flows out uneasy in the traditional process, and avoids the problem of sludge bulking in the traditional process. The water quality of the process is superior to that of the traditional process, and completely obtains the state standard of recycling different water: CODc < r > is less than 30 mg / 1, ammonia nitrogen is less than 1 mg / 1, the water has no color, no taste and no obvious precipitate, and colibacillus can not be checked out. Thus, the water can be reused as resource. The technique is feasible in economy. The investment is about 1600 yuan / cubic meter to 2000 yuan / cubic meter, and the expenses of ton water treatment is equivalent to that of the process of traditional recycle reclaimed water.

Description

The domestic sewage resource treatment unit

Technical field

The utility model relates to the sewage purification technology device.

Background technology

Along with the urbanization of middle samll cities and towns, the quantity discharged of sanitary sewage increases year by year, and the treatment process that adopts mainly contains three kinds at present: 1, enter city planting ductwork or directly discharging after the one-level physical treatment; 2, two stage biological is handled, no deoxidation phosphorus removal functional, and water outlet can not reach national urban wastewater treatment firm pollutant emission standard (GB18918-2002), and water outlet can not reuse; 3, three grades of advanced treatment process, water outlet can reach the standard of GB18918-2002, but technical process is complicated, and floor space is big, the operational administrative complexity, the mud quantum of output is big.Because second-stage treatment and tertiary treatment technology adopt Wastewater Treated by Activated Sludge Process work mostly, present this method mainly contains three subject matters and remains further to be solved: the biochemical speed of (1) active sludge; (2) processing of excess sludge; (3) the up to standard and reuse of effluent quality.

The utility model content

The utility model purpose is to provide the device that a kind of processing cost is low, easy to operate, be fit to the small town sewage recycling treatment for people.

The utility model mainly is made up of the adjusting anaerobic pond, hydrolysis acidification pool, the Aerobic Pond that are interconnected, regulate anaerobic pond and be provided with sewage inlet, in hydrolysis acidification pool, establish the polyester non-woven fabric filler, in Aerobic Pond, establish the hollow fiber ultrafiltration film, the hollow fiber ultrafiltration film is communicated with water absorption tube, be connected in series water suction pump on water absorption tube, the water suction pump the other end connects water shoot.

---adjusting anaerobic treatment process pond---acidication technology (the biological contact of polyester filler)---jet-flow aeration circulation aerobic process---sewage tubular fibre membrane separation process---water outlet that the utility model adopts main flow process to be: water inlet, regulate anaerobic treatment process in the flow process and mainly act as adjusting water quality, slow down impact load, with respect to traditional equalizing tank, because the excess sludge of Aerobic Pond all refluxes and enters equalizing tank, so this pond also has dissolved organic matter in the water inlet is tentatively degraded and had the effect of digestion part mud; Acidication: the polyester non-woven fabric filler of high-ratio surface is equipped with in inside, and the partial organic substances of degrading also improves biodegradability; Aerobic Pond adopts at present novel biochemical processing process design, adopt jet-flow aeration separatory membrane bio-reactor (MBR), integral type film assembly (hollow-fibre membrane) all is immersed in the Aerobic Pond, the jet-flow aeration that Aerobic Pond adopts simultaneously, its gas-water ratio can obtain high-solubility oxygen from produce bigger waterpower circulation Aerobic Pond much larger than common aeration, and the pollution that slows down membrane module, the work-ing life of improving membrane module.

The utility model is not established second pond, does not have three grades of advanced treatment units, adopts membrane module to carry out solid-liquid separation efficiently, overcomes the unsettled phenomenon of water outlet in the traditional technology, avoids the sludge bulking problem in the traditional technology.This technology effluent quality is much better than the effluent quality of traditional technology, reaches national miscellaneous water reuse standard (COD fully _Cr＜30mg/l, ammonia nitrogen＜1mg/l, colorless and odorless, no obvious sediment thing, intestinal bacteria can't check), so water outlet can be carried out resource utilization and utilizes.Present technique is feasible economically, and investment is greatly about 1600～2000 yuan/cubic metre, and water recovering process is suitable in ton water treatment expense and the tradition.

Simultaneously, the utility model is also established the denitrogenation water pipe that is communicated with between Aerobic Pond and hydrolysis acidification pool, on the denitrogenation water pipe line, establish water suction pump, the water-in of deoxidation water pipe is arranged in the Aerobic Pond, water outlet is arranged in the hydrolysis acidification pool, and the water in the Aerobic Pond is refluxed enters hydrolysis acidification pool, produces denitrification, reach the effect of denitrogenation, with the further raising quality that purifies water.

Establish the sludge digestion pipe that is communicated with at Aerobic Pond with regulating between anaerobic pond, on the sludge digestion pipeline, establish excavating pump, the dirt inlet of sludge digestion pipe is arranged in the Aerobic Pond, dirt-discherging outlet is arranged in to be regulated in the anaerobic pond, purpose is that mud is refluxed under the anoxia condition of regulating anaerobic pond, further digested sludge automatically.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the vertical view of Fig. 1.

Among the figure, 1 water inlet pipe, 2 regulate anaerobic pond, 3 sludge digestion dirt-discherging outlets, 4 sludge digestion pipes, 5 connected entrances (one), 6 hydrolysis acidification pools, 7 flow deflectors, 8 polyester non-woven fabrics tamp, 9 denitrogenation water outlets, 10 denitrogenation water pipes, 11 Aerobic Ponds, 12 hollow-fibre membranes, 13 water absorption tubes, 14 jet aerators, 15 ventpipes, 16 water absorption tubes, between 17 execute-in-places, 18 clean water basin, 19 rising pipes, 20 water suction pumps, 21 water pumps, 22 threeways, 23 valves, 24 connected entrances (two).

Specific embodiment

Make airtight adjusting anaerobic pond 2 with hard wear-resistant material, hydrolysis acidification pool 6 between Aerobic Pond 11 and execute-in-place 16, clean water basin 18, is offered Link Port () 5 above the adjacent wall of regulating anaerobic pond 2 and hydrolysis acidification pool 6; On the adjacent wall of hydrolysis acidification pool 6 and Aerobic Pond 11, establish Link Port (two) 15.The left end of regulating anaerobic pond 2 connects sewage water inlet pipe 1, and with its port in regulating anaerobic pond 2 towards descending.

In hydrolysis acidification pool 6, establish upper end and front and back end and be connected flow deflector 7 on the pool wall, leave the gap between at the bottom of the lower end of flow deflector 7 and the pond, at the right side of baffle plate 7 layout polyester non-woven fabric filler 8.

Arrange jet aerator 14 in Aerobic Pond 11 bottoms, the end of the ventpipe 15 that is connected with jet aerator 14 is arranged in Aerobic Pond 11 tops; In Aerobic Pond 11, arrange some hollow-fibre membranes 12, and the logical water absorption tube 13 of this symphysis passes Aerobic Pond 11 and enter between execute-in-place 16 and be connected to clean water basin 18, arrange water suction pump 20 at the scene on water absorption tube 13 pipelines of operation room 17, and plurality of control valves.Connect clear water on clean water basin 18 right sides and give off water pipe 19.

Connect water absorption tube 16 at Aerobic Pond 11 antethecas, and be connected with water pump 21 by valve; Connect denitrogenation water pipe 10 at hydrolysis acidification pool 6 antethecas, and be connected with water pump 21 by valve; Regulating anaerobic pond 2 antethecas connection sludge digestion pipe 4, and be connected with water pump 21 by valve.

Claims

1, domestic sewage resource treatment unit, it is characterized in that mainly forming by the adjusting anaerobic pond, hydrolysis acidification pool, the Aerobic Pond that are interconnected, regulate anaerobic pond and be provided with sewage inlet, in hydrolysis acidification pool, establish the polyester non-woven fabric filler, in Aerobic Pond, establish the hollow fiber ultrafiltration film, the hollow fiber ultrafiltration film is communicated with water absorption tube, is connected in series water suction pump on water absorption tube, and the water suction pump the other end connects water shoot.

2, according to the described device of claim 1, it is characterized in that between Aerobic Pond and hydrolysis acidification pool, establishing the denitrogenation water pipe that is communicated with, on the denitrogenation water pipe line, establish water suction pump, the water-in of deoxidation water pipe is arranged in the Aerobic Pond, and water outlet is arranged in the hydrolysis acidification pool.

3, according to the described device of claim 2, it is characterized in that establishing the sludge digestion pipe that is communicated with regulating between anaerobic pond at Aerobic Pond, establish excavating pump on the sludge digestion pipeline, the dirt inlet of sludge digestion pipe is arranged in the Aerobic Pond, and dirt-discherging outlet is arranged in to be regulated in the anaerobic pond.