CN201517062U - Sewage treatment system - Google Patents

Sewage treatment system Download PDF

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Publication number
CN201517062U
CN201517062U CN2009202051638U CN200920205163U CN201517062U CN 201517062 U CN201517062 U CN 201517062U CN 2009202051638 U CN2009202051638 U CN 2009202051638U CN 200920205163 U CN200920205163 U CN 200920205163U CN 201517062 U CN201517062 U CN 201517062U
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China
Prior art keywords
pond
water
sewage treatment
treatment systems
sludge
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Expired - Lifetime
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CN2009202051638U
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Chinese (zh)
Inventor
洪应萍
夏文林
罗颜荣
何广松
袁挺
郑祥明
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DONGGUAN HONGSHULIN ENVIRONMENTAL PROTECTION TECHNOLOGY Ltd CHINA
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DONGGUAN HONGSHULIN ENVIRONMENTAL PROTECTION TECHNOLOGY Ltd CHINA
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Abstract

The utility model discloses a sewage treatment system, which comprises a pretreatment system, a biochemical treatment system and a sludge water separating system. Treatment pools for forming the pretreatment system and the biochemical treatment system, and a sludge pool and a clear water reservoir which form the sludge water separating system are tightly close and are arranged in a circular ring shape, and the other parts of the sludge water separating system are arranged at the center of a circular ring region, thereby forming a sewage treatment system of a circular structure. The sewage treatment system has the advantages of compact structure and capability of reducing floor area.

Description

Sewage treatment systems
Technical field
The utility model belongs to technical field of sewage, refers in particular to a kind of Sewage treatment systems.
Background technology
Along with the increase of urban population and the development of industrial and agricultural production, the sewage quantity that is produced in production and the life process also increases day by day, in order to alleviate the harm of sewage to water body and environment, needs through this link of purifying treatment before it is released in the environment.Existing Sewage treatment systems is made of pretreatment system, biochemical treatment system and sludge-water separating system mostly, mainly due to adopting different processing methodes making up its biochemical treatment system, and make the difference to some extent on its structure formation of various dissimilar Sewage treatment systemss.But, existing Sewage treatment systems all exists same defective, promptly, be discrete distribution mode (being communicated with in turn by pipeline between the treating pond) in order to each treating pond that constitutes Sewage treatment systems, this makes the entire sewage treatment system need occupy bigger land area, has not only improved its laid down cost, also limited its use range, for example, in the comparatively nervous city of land used, the addressing of Sewage treatment systems just is greatly limited.
In addition, the sludge-water separating system of existing Sewage treatment systems adopts second pond to constitute more, the water outlet of biochemical treatment system is directly discharging after the second pond precipitate and separate, though its treat effluent can reach the water quality requirement of discharge water, but raising along with environmental requirement, still need existing Sewage treatment systems is improved,, improve the standard of effluent quality with its wastewater treatment efficiency of further enhancing.
Summary of the invention
The purpose of this utility model is to overcome the existing existing defective of Sewage treatment systems, a kind of compact construction is provided, can reduces the Sewage treatment systems of floor space.
For achieving the above object, the utility model adopts following technical scheme: a kind of Sewage treatment systems, include a pretreatment system, a biochemical treatment system and a sludge-water separating system, wherein, constitute each treating pond of described pretreatment system and biochemical treatment system and constitute the sludge sump of described sludge-water separating system and clean water basin next-door neighbour and be circular distribution, the rest part of described sludge-water separating system then is arranged at the center in circular zone, thereby forms the Sewage treatment systems of circular configuration.
In the above-mentioned Sewage treatment systems, described pretreatment system includes the grating tank that an equalizing tank and is arranged at described equalizing tank water inlet; Described biochemical treatment system is drawn together an anaerobic pond, an anoxic pond and an Aerobic Pond that is communicated with in turn, wherein, the water-in of described anaerobic pond is communicated with the water outlet pipeline of described equalizing tank, wherein be provided with at least one submersible agitator, the water-in of described anoxic pond is communicated with the water outlet of described anaerobic pond, described Aerobic Pond is the oxidation ditch structure that is provided with aerating apparatus, its water-in is communicated with the water outlet of described anoxic pond, and at least one being used for the sewage backflow of the described Aerobic Pond reflux to the described anoxic pond is set between described Aerobic Pond and anoxic pond; Described sludge-water separating system includes an air-float filtration device, one sludge sump and clean water basin, wherein, described air-float filtration device includes an air-floating apparatus and filtering basin, the water-in of described air-floating apparatus is communicated with the water outlet pipeline of described Aerobic Pond, and its water outlet is communicated with the water-in of described filtering basin by a distributing trough, and mud discharging mouth by a shore pipe and with described sludge sump pipeline connection, the water outlet of described filtering basin by rising pipe and with described clean water basin pipeline connection, described sludge sump is provided with a mud reflux that is used for mud is back to described anaerobic pond.
In the above-mentioned Sewage treatment systems, be provided with the cilia-like biofilm filler in the described Aerobic Pond.
In the above-mentioned Sewage treatment systems, the place is provided with an Aerobic Pond dividing plate in the middle of the described Aerobic Pond, and the place, both sides that is positioned at described Aerobic Pond dividing plate respectively is provided with at least one the 3rd diving impeller towards same plug-flow direction.
In the above-mentioned Sewage treatment systems, described aerating apparatus includes a gas distribution air main that is connected with blower fan and a plurality of micro-hole aerator that is arranged at described Aerobic Pond bottom, and each micro-hole aerator is communicated with described gas distribution air main by a gas distribution branch wind pipe separately.
In the above-mentioned Sewage treatment systems, described micro-hole aerator is a film tube-type micropore aerator.
In the above-mentioned Sewage treatment systems, described micro-hole aerator is divided into the place, both sides of described Aerobic Pond dividing plate.
In the above-mentioned Sewage treatment systems, the place is provided with an equalizing tank dividing plate in the middle of the described equalizing tank, and the place, both sides that is positioned at described equalizing tank dividing plate respectively is provided with at least one first diving impeller towards same plug-flow direction.
In the above-mentioned Sewage treatment systems, the place is provided with an anoxic pond dividing plate in the middle of the described anoxic pond, and the place, both sides that is positioned at described anoxic pond dividing plate respectively is provided with at least one second diving impeller towards same plug-flow direction.
In the above-mentioned Sewage treatment systems, the air-floating apparatus of described air-float filtration device and filtering basin integrated setting.
The beneficial effects of the utility model are: constitute each treating pond of described pretreatment system and biochemical treatment system and constitute the sludge sump of described sludge-water separating system and clean water basin next-door neighbour and be circular distribution, the rest part of described sludge-water separating system then is arranged at the center in circular zone, thereby the Sewage treatment systems of forming circular configuration, distribution mode like this, can compactly make up each treating pond, thereby reduce the floor space of Sewage treatment systems.
Description of drawings
Fig. 1 is the structural representation of the utility model Sewage treatment systems.
Fig. 2 is the sectional structure synoptic diagram of the utility model Sewage treatment systems.
Fig. 3 is the process flow diagram of the utility model Sewage treatment systems.
Fig. 4 is the part-structure synoptic diagram of the utility model Sewage treatment systems.
Fig. 5 is the structural representation of another embodiment of the utility model Sewage treatment systems.
Embodiment
For making those of ordinary skill in the art be expressly understood the purpose of this utility model, technical scheme and advantage more, the utility model is further elaborated below in conjunction with drawings and Examples.
Sewage treatment systems disclosed in the utility model is made of a pretreatment system, a biochemical treatment system and a sludge-water separating system, sanitary sewage or production waste enter biochemical treatment system after pretreatment system is removed suspended substance and regulating pondage water quality, pollutents such as the organism in this system in the removal sewage, phosphorus, nitrogen are done further processing through sludge-water separating system again.
Referring to figs. 1 to shown in Figure 4, so that first embodiment of the present utility model to be described.
Pretreatment system includes the grating tank 110 that an equalizing tank 100 and is arranged at these equalizing tank 100 water inlets.
Production waste or sanitary sewage import grating tank 110, remove suspending sundries in the sewage by being arranged at grid maker 111 in this grating tank 110, to prevent suspending sundries from entering the treating pond of next stage wherein equipment are caused damage.Grid maker 111 can be selected one or more in rotary machine grid maker, recection type rotation grid maker, net formula commentaries on classics chain grid maker, the fixed grid maker for use, and in order to satisfy the water inlet requirement of next stage treating pond, grid maker 111 preferred use grid gaps are the fine fack machine of 1~5mm.
Flow into equalizing tank 100 through the sewage after grating tank 110 processing,, make sewage can enter the biochemical treatment system of follow-up phase equably to regulate the water yield and the water quality of sewage.Equalizing tank 100 is designed to the fan ring texture that two ends are arcuation, the place is provided with an equalizing tank dividing plate 101 and forms one and can supply effluent cycle mobile treating pond in the middle of it, and the both sides that are positioned at this equalizing tank dividing plate 101 in the pond are sentenced and respectively are provided with one first impeller 102 of diving under water towards the mode of same plug-flow direction.Sewage is after grating tank 110 enters equalizing tank 100, and the first diving impeller 102 is opened and promoted sewage and circulate in equalizing tank 100, can play the effect of the water quality and the water yield of even sewage, and the suspended substance that also can prevent from the sewage simultaneously to be contained precipitates.Really, the first more or less diving impeller 102 can be set in equalizing tank 100, but, under situation, must be provided with towards same plug-flow direction with two or more first diving impellers 102.
Biochemical treatment system makes up based on the A/A/O biochemical processing process, and it includes an anaerobic pond 200, an anoxic pond 210 and an Aerobic Pond 220 of UNICOM in turn.
The water-in of anaerobic pond 200 is communicated with the water outlet pipeline of the equalizing tank of pretreatment system 100, and the sewage after regulating through water quality and the water yield imports anaerobic pond 200, and with mix by the mud that is back in the sludge-water separating system in the anaerobic pond 200.In anaerobic pond 200, the phosphorus that returned sluge contains is released out, and the dissolved organic matter in the sewage is absorbed by microorganism and reduces the BOD concentration of sewage, simultaneously, and the NH in the sewage 3-N is partly removed because of the synthetic of cell, thereby reduces the NH in the sewage 3-N concentration.Be provided with at least one submersible agitator 201 in anaerobic pond 200, the stirring action by submersible agitator 201 to be guaranteeing the uniform mixing of sewage and returned sluge, and prevents sludge settling.
The water-in of anoxic pond 210 is communicated with the water outlet of anaerobic pond 200, the place is provided with an anoxic pond dividing plate 211 and forms one and can supply effluent cycle mobile treating pond in the middle of it, and the both sides that are positioned at this anoxic pond dividing plate 211 in the pond are sentenced and respectively are provided with one second impeller 212 of diving under water towards the mode of same plug-flow direction.Effect by this second diving impeller 212, make from the sewage of anaerobic pond 200 and mixed in anoxic pond 210 with backflow sewage from Aerobic Pond 220, because mixed solution is anoxic condition, and anti-nitration reaction is achieved at this, thereby remove most nitrogen in the sewage.In this embodiment, anaerobic pond 200 distributes with anoxic pond 210 next-door neighbours, be formed with a water hole 202 at the bottom of anaerobic pond 200 ponds of maintaining an equal level that connects in both junctions, realize being communicated with of anaerobic pond 200 and anoxic pond 210 by this water hole 202, make the water outlet of anaerobic pond 200 to flow in the anoxic pond 210 through this water hole 202.
Aerobic Pond 220 is designed to the oxidation ditch structure, and its water-in is communicated with the water outlet of anoxic pond 210, and between Aerobic Pond 220 and anoxic pond 210 at least one reflux 221 is set, and is used for the sewage backflow of Aerobic Pond 220 is imported in the anoxic pond 210.The place is provided with an Aerobic Pond dividing plate 222 in the middle of Aerobic Pond 220, the place, both sides that is positioned at Aerobic Pond dividing plate 222 respectively is provided with one the 3rd diving impeller 223 towards same plug-flow direction, adopt the diving impeller to realize the plug-flow of oxidation ditch, make current by lower floor to upper layer transfers, expose to the sun with changeing brush or inversed umbrella type aerator than table, can reduce the consumption of energy current layer transmission from the top down.
The aerating apparatus that Aerobic Pond 220 is adopted includes a gas distribution air main 224 that is connected with blower fan and a plurality of micro-hole aerator 225 that is arranged at Aerobic Pond 220 bottoms, and each micro-hole aerator 225 is communicated with this gas distribution air main 224 by a gas distribution branch wind pipe 226 separately.This aerating apparatus adopts the mode of deep water micro-pore aeration, and cooperate the plug-flow of realizing by the 3rd diving impeller 223 under water to combine, can increase total oxygen transfer amount, improve coefficient of oxygen utilization effectively and reduce aeration energy consumption, simultaneously can fully mix mud and Yuan Shui, prevent sludge settling, nitration reaction is thoroughly carried out.Preferably, micro-hole aerator 225 is selected film tube-type micropore aerator for use, and a plurality of micro-hole aerators is divided into the place, both sides of Aerobic Pond dividing plate 222.
Aerobic Pond 220 also is provided with cilia-like biofilm filler 227, make the nitrifier in the Aerobic Pond 220 can inhabit cilia-like biofilm filler 227 surfaces and not participate in the mud backflow, thereby will drop to minimum because of the influence that the eliminating excess sludge causes to nitrifying bacteria community quantity.Setting by this cilia-like biofilm filler 227, to increase the concentration of attached microbial in the Aerobic Pond 220, the degraded to pollutent is finished in utilization attached to swimming the cooperation of moving phase microorganism in stationary phase microorganism on the cilia-like biofilm filler 227 and the sewage, can in the short residence time, remove the pollutents such as organism, nitrogen and phosphorus that contain in the sewage, improve the effect of biochemical treatment.
Sludge-water separating system includes an air-float filtration device 300, a sludge sump 310 and clean water basin 320, and wherein, air-float filtration device 300 includes an air-floating apparatus 301 and filtering basin 302, both integrated setting.The water-in of air-floating apparatus 301 is communicated with the water outlet pipeline of Aerobic Pond 220, and its water outlet is by a distributing trough and being communicated with the water-in of filtering basin 302, and mud discharging mouth passes through a shore pipe 303 and with sludge sump 310 pipeline connections; The water outlet of filtering basin 302 by rising pipe 304 and with clean water basin 320 pipeline connections.The water outlet of Aerobic Pond 220 enters air-floating apparatus 301 and carries out the mud-water separation processing, and the sewage after the processing enters filtering basin 302 via this distributing trough and carries out filtration treatment, and mud then is disposed in the sludge sump 310 by shore pipe 303.302 pairs of sewage from air-floating apparatus 301 of filtering basin filter, and the back flows in the clean water basin 320 by rising pipe 304.
Be provided with a mud reflux 311 in the sludge sump 310, to be used for that mud is back to anaerobic pond 200.Usually, this mud reflux 311 includes mud return line 313 formations that a submersible sewage pump 312 and is connected in this submersible sewage pump 312 and inserts anaerobic pond 200.
Further processing is done in water outlet after the air-float filtration device will be handled through biochemical treatment system, can increase substantially the water quality of handling the back water outlet, make its water quality standard that reaches miscellaneous water and in addition reuse, realize handling the recycle of back water outlet, reduce the waste of water resources.
When making up Sewage treatment systems, with each treating pond next-door neighbour such as the sludge sump 230 of anaerobic pond 200, anoxic pond 210 and the Aerobic Pond 220 and the sludge-water separating system of the grating tank 110 of pretreatment system and equalizing tank 100, biochemical treatment system and clean water basin 240 and be circular distribution, and the air-float filtration device 300 of sludge-water separating system is arranged at the central section in circular zone, thereby constitute the Sewage treatment systems of circular configuration, distribution mode like this, can compactly make up each treating pond, thereby reduce the floor space of Sewage treatment systems.
With reference to shown in Figure 5, so that another embodiment of the present utility model to be described.In this embodiment, sludge-water separating system includes a second pond 400, a sludge sump 410 and clean water basin 420, wherein, each treating pond next-door neighbour of sludge sump 410 and clean water basin 420 and pretreatment system, biochemical treatment system also is circular distribution, second pond 400 then is arranged at the center in circular zone, thereby forms the Sewage treatment systems of circular configuration.After the water outlet of biochemical treatment system flowed into and carries out mud-water separation in the second pond 400, supernatant was directed at clean water basin 420, and the mud that precipitation produces then enters sludge sump 410.The difference of this embodiment and a last embodiment is to use second pond to replace the air-float filtration device and constitutes the sludge-water separating system of Sewage treatment systems.
The above only is a preferred embodiment of the present utility model, but not the utility model is done any pro forma restriction.Those skilled in the art can impose various changes that are equal to and improvement on the basis of the foregoing description, all equivalent variations or modifications of being done in the claim scope all should fall within the protection domain of the present utility model.

Claims (10)

1. Sewage treatment systems, include a pretreatment system, a biochemical treatment system and a sludge-water separating system, it is characterized in that: constitute each treating pond of described pretreatment system and biochemical treatment system and constitute the sludge sump of described sludge-water separating system and clean water basin next-door neighbour and be circular distribution, the rest part of described sludge-water separating system then is arranged at the center in circular zone, thereby forms the Sewage treatment systems of circular configuration.
2. Sewage treatment systems as claimed in claim 1 is characterized in that: described pretreatment system includes the grating tank that an equalizing tank and is arranged at described equalizing tank water inlet; Described biochemical treatment system is drawn together an anaerobic pond, an anoxic pond and an Aerobic Pond that is communicated with in turn, wherein, the water-in of described anaerobic pond is communicated with the water outlet pipeline of described equalizing tank, wherein be provided with at least one submersible agitator, the water-in of described anoxic pond is communicated with the water outlet of described anaerobic pond, described Aerobic Pond is the oxidation ditch structure that is provided with aerating apparatus, its water-in is communicated with the water outlet of described anoxic pond, and at least one being used for the sewage backflow of the described Aerobic Pond reflux to the described anoxic pond is set between described Aerobic Pond and anoxic pond; Described sludge-water separating system includes an air-float filtration device, one sludge sump and clean water basin, wherein, described air-float filtration device includes an air-floating apparatus and filtering basin, the water-in of described air-floating apparatus is communicated with the water outlet pipeline of described Aerobic Pond, and its water outlet is communicated with the water-in of described filtering basin by a distributing trough, and mud discharging mouth by a shore pipe and with described sludge sump pipeline connection, the water outlet of described filtering basin by rising pipe and with described clean water basin pipeline connection, described sludge sump is provided with a mud reflux that is used for mud is back to described anaerobic pond.
3. Sewage treatment systems as claimed in claim 2 is characterized in that: be provided with the cilia-like biofilm filler in the described Aerobic Pond.
4. as claim 2 or 3 described Sewage treatment systemss, it is characterized in that: the place is provided with an Aerobic Pond dividing plate in the middle of the described Aerobic Pond, and the place, both sides that is positioned at described Aerobic Pond dividing plate respectively is provided with at least one the 3rd diving impeller towards same plug-flow direction.
5. Sewage treatment systems as claimed in claim 4, it is characterized in that: described aerating apparatus includes a gas distribution air main that is connected with blower fan and a plurality of micro-hole aerator that is arranged at described Aerobic Pond bottom, and each micro-hole aerator is communicated with described gas distribution air main by a gas distribution branch wind pipe separately.
6. Sewage treatment systems as claimed in claim 5 is characterized in that: described micro-hole aerator is a film tube-type micropore aerator.
7. the sewage disposal decorum as claimed in claim 6 is characterized in that: described micro-hole aerator is divided into the place, both sides of described Aerobic Pond dividing plate.
8. Sewage treatment systems as claimed in claim 2 is characterized in that: the place is provided with an equalizing tank dividing plate in the middle of the described equalizing tank, and the place, both sides that is positioned at described equalizing tank dividing plate respectively is provided with at least one first diving impeller towards same plug-flow direction.
9. Sewage treatment systems as claimed in claim 2 is characterized in that: the place is provided with an anoxic pond dividing plate in the middle of the described anoxic pond, and the place, both sides that is positioned at described anoxic pond dividing plate respectively is provided with at least one second diving impeller towards same plug-flow direction.
10. Sewage treatment systems as claimed in claim 2 is characterized in that: the air-floating apparatus of described air-float filtration device and filtering basin integrated setting.
CN2009202051638U 2009-09-17 2009-09-17 Sewage treatment system Expired - Lifetime CN201517062U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102020394B (en) * 2009-09-17 2012-09-05 东莞市红树林环保科技有限公司 Sewage treatment system
CN106045038A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Sewage treatment system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102020394B (en) * 2009-09-17 2012-09-05 东莞市红树林环保科技有限公司 Sewage treatment system
CN106045038A (en) * 2016-07-12 2016-10-26 佛山杰致信息科技有限公司 Sewage treatment system

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Granted publication date: 20100630

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