CN204022621U - Municipal wastewater treatment system - Google Patents
Municipal wastewater treatment system Download PDFInfo
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- CN204022621U CN204022621U CN201420404522.3U CN201420404522U CN204022621U CN 204022621 U CN204022621 U CN 204022621U CN 201420404522 U CN201420404522 U CN 201420404522U CN 204022621 U CN204022621 U CN 204022621U
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Abstract
The utility model relates to a kind of municipal wastewater treatment system, comprise water inlet pipe and rising pipe, also comprise the coarse rack, equalizing tank, fine fack, preliminary sedimentation tank, biological aerated filter pond, second-level settling pond and the sterilization pool that set gradually, water inlet pipe is communicated with the water-in of coarse rack, and the water outlet of sterilization pool is communicated with rising pipe; Wherein, preliminary sedimentation tank comprises muddy water mixing zone, biofloculation district, settling section and mud enrichment region successively, and described mud enrichment region is provided with the sludge reflux passage of the mud entrance that is communicated with top, muddy water mixing zone.This municipal wastewater treatment system can realize good water treatment effect, obtains the reuse water that water quality is higher.
Description
Technical field
The utility model relates to sewage disposal technology, more particularly, relates to a kind of municipal wastewater treatment system.
Background technology
Sewage handling problem is subject to social great attention day by day.Along with the process of urbanization and the development of industrial society, water consumption constantly increases on the one hand, and water resources is day by day in short supply, and on the other hand, quantity of wastewater effluent is increasing, and environmental pollution is day by day serious.Therefore, urban sewage treatment system is to solve water resources deficiency and the serious key of environmental pollution.
Current municipal wastewater is processed and is all started to adopt biological process sewage treatment process system, but mainly equalizing tank, BAF and settling tank, consists of.This type of municipal wastewater treatment system can reach certain water treatment effect, but its regeneration water quality is still poor, is difficult to meet town water water quality requirement.
Utility model content
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides that a kind of water treatment is effective, the high municipal wastewater treatment system of regeneration water quality.
The utility model solves the technical scheme that its technical problem adopts: propose a kind of municipal wastewater treatment system, comprise water inlet pipe and rising pipe, also comprise the coarse rack setting gradually, equalizing tank, fine fack, preliminary sedimentation tank, biological aerated filter pond, second-level settling pond, and sterilization pool, wherein, water inlet pipe is communicated with the water-in of coarse rack, the water outlet of coarse rack is communicated with the water-in of equalizing tank, the water outlet of equalizing tank is communicated with the water-in of the water-in fine fack of fine fack, the water outlet of fine fack is communicated with the water-in of preliminary sedimentation tank, the water outlet of preliminary sedimentation tank is communicated with the water-in in biological aerated filter pond, the water outlet in biological aerated filter pond is communicated with the water-in of second-level settling pond, the water outlet of second-level settling pond is communicated with the water-in of sterilization pool, the water outlet of sterilization pool is communicated with rising pipe,
Wherein, described preliminary sedimentation tank comprises muddy water mixing zone successively, biofloculation district, settling section and mud enrichment region, the water-in on top, muddy water mixing zone is communicated with the water-in of preliminary sedimentation tank, the water outlet on top, muddy water mixing zone is communicated with the water-in on top, biofloculation district, the water outlet on top, biofloculation district is communicated with the water-in of bottom, settling section, the water outlet on top, settling section is communicated with the water-in in described biological aerated filter pond, muddy water mixing zone, the mud relief outlet of biofloculation district and bottom, settling section is all communicated with mud enrichment region, and described mud enrichment region is provided with the sludge reflux passage of the mud entrance that is communicated with top, muddy water mixing zone.
According in an embodiment of the present utility model, described mud enrichment region is provided with the sludge reflux passage of the mud entrance that is communicated with top, muddy water mixing zone.
According in an embodiment of the present utility model, described mud enrichment region is also provided with the sewage backflow passage of the sewage backflow mouth that is communicated with bottom, settling section.
According in an embodiment of the present utility model, described muddy water mixing zone is provided with mechanical stirrer so that the sewage of being come in by water-in in muddy water mixing zone and the mud that refluxed by sludge reflux passage are mixed.
According in an embodiment of the present utility model, described settling section is provided with packing layer, and described packing layer is honeycomb inclined-tube packing layer or pebbles packing layer.
According in an embodiment of the present utility model, described coarse rack is provided with a plurality of thick grizzly bars that are parallel to each other, and the spacing between adjacent two thick grizzly bars is 10mm to 20mm.
According in an embodiment of the present utility model, described fine fack is provided with a plurality of thin grizzly bars that are parallel to each other, and the spacing between adjacent two thin grizzly bars is 2mm to 5mm.
Municipal wastewater treatment system of the present utility model has following beneficial effect: this system by grid remove in sewage compared with bigger material, by the balanced water quality and quantity of equalizing tank, by preliminary sedimentation tank, sewage is carried out to the pre-treatment before biological respinse, remove suspended substance in water, by biological aerated filter pond, carry out biological respinse again and remove the organic pollutant in sewage, and in second-level settling pond, again carry out mud-water separation, finally by sterilization pool thorough disinfection, can realize good water treatment effect, obtain the reuse water that water quality is higher.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the municipal wastewater treatment system of an embodiment of the utility model.
Fig. 2 is the structural representation of an embodiment of the preliminary sedimentation tank in Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, according to the municipal wastewater treatment system of an embodiment of the utility model, comprise water inlet pipe 11 and rising pipe 19, also comprise the coarse rack 12, equalizing tank 13, fine fack 14, preliminary sedimentation tank 15, biological aerated filter pond 16, second-level settling pond 17 and the sterilization pool 18 that set gradually.Water inlet pipe 11 is for converging municipal effluent, and the water side of water inlet pipe 11 is communicated with the water-in of coarse rack 12.Coarse rack 12 is mainly for separating of the foreign material of comparatively large vol in sewage, such as leaf, rubbish etc.In concrete example, coarse rack 12 is provided with a plurality of thick grizzly bars that are parallel to each other, and the spacing between adjacent two thick grizzly bars is 10mm to 20mm.The water outlet of coarse rack 12 is communicated with the water-in of equalizing tank 13 by pipeline.Equalizing tank 13 regulates for carrying out the mixing of water quality, the water yield, avoids the fluctuation of the water quality and quantity of different period water inlets.The water outlet of equalizing tank is communicated with the water-in of fine fack 14.The effect of fine fack 14 and coarse rack 12 are basic identical, are mainly used in removing the relatively little foreign material of volume in sewage.In concrete example, fine fack 14 is provided with a plurality of thin grizzly bars that are parallel to each other, and the spacing between adjacent two thin grizzly bars is 2mm to 5mm.The water outlet of fine fack 14 is communicated with the water-in of preliminary sedimentation tank 15.Preliminary sedimentation tank 15 is mainly used in sewage to carry out the pre-treatment before biological respinse, removes suspended substance in water.The water outlet of preliminary sedimentation tank 15 is communicated with the water-in in biological aerated filter pond 16.By biological aerated filter pond 16, make microorganic adhesion form microbial film in filling surface growth, in the process that effluent stream contacts with microbial film through filling surface, the organic pollutant in sewage is by microorganism adsorption, stable, and final transfer is H
2o, CO
2and microbial cell material, sewage is purified.The water outlet in biological aerated filter pond 16 is communicated with the water-in of second-level settling pond 17.Sewage after 17 pairs of biological respinses of second-level settling pond carries out further contamination precipitation.The water outlet of second-level settling pond 17 is communicated with the water-in of sterilization pool 18.Sterilization pool 18 can adopt the various disinfection way such as chlorination, ozonization or disinfection by ultraviolet light to water disinfection.Then water after sterilization be communicated with rising pipe 19 by the water outlet of sterilization pool 18, and reuse water is discharged.
Fig. 2 shows the structural representation of a specific embodiment of preliminary sedimentation tank 15.As shown in Figure 2, preliminary sedimentation tank 15 comprises muddy water mixing zone 151, biofloculation district 152, settling section 153 and mud enrichment region 154.The water-in on 154 tops, muddy water mixing zone is communicated with the water-in of preliminary sedimentation tank 15, the water outlet on 151 tops, muddy water mixing zone is communicated with the water-in on 152 tops, biofloculation district, the water outlet on 152 tops, biofloculation district is communicated with the water-in of 153 bottoms, settling section, the water outlet on 153 tops, settling section is communicated with the water-in in biological aerated filter pond 16, and the mud relief outlet of muddy water mixing zone 151,153 bottoms, 152He settling section, biofloculation district is all communicated with mud enrichment region 154.And mud enrichment region 154 is provided with the sludge reflux passage 155 of the mud entrance that is communicated with 151 tops, muddy water mixing zone.Preferably, mud enrichment region 154 is also provided with the sewage backflow passage 156 of the sewage backflow mouth that is communicated with 153 bottoms, settling section.
In muddy water mixing zone 151, be provided with mechanical stirrer so that the sewage of being come in by water-in in muddy water mixing zone 151 and the mud that refluxed by sludge reflux passage 155 are mixed.The muddy water mixing carries out preliminary hydrolysis in biofloculation district 152.In settling section 153, be provided with packing layer, by installing filler additional, to sewage, provide clarification.From settling section, 153 lower water inlet enters biofloculation district 152 sewage out, and through the clarification of packing layer, from settling section, 153 top water outlet is discharged, and to offer biological aerated filter pond 16, carries out biological respinse.Packing layer in settling section 153 preferably adopts honeycomb inclined-tube filler or pebbles filler.The mud of muddy water mixing zone 151,153 bottoms, 152He settling section, biofloculation district is all collected in mud enrichment region 154, realizes mud-water separation, to discharge mud.Meanwhile, a part of mud in mud enrichment region 154 is back to muddy water mixing zone 151 through sludge reflux passage 155 and realizes body refuse circulation; The water of separating in mud enrichment region 154 enters settling section 153 by sewage backflow passage 156, thereby improves reuse of wastewater rate.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a municipal wastewater treatment system, it is characterized in that, comprise water inlet pipe and rising pipe, also comprise the coarse rack setting gradually, equalizing tank, fine fack, preliminary sedimentation tank, biological aerated filter pond, second-level settling pond, and sterilization pool, wherein, water inlet pipe is communicated with the water-in of coarse rack, the water outlet of coarse rack is communicated with the water-in of equalizing tank, the water outlet of equalizing tank is communicated with the water-in of the water-in fine fack of fine fack, the water outlet of fine fack is communicated with the water-in of preliminary sedimentation tank, the water outlet of preliminary sedimentation tank is communicated with the water-in in biological aerated filter pond, the water outlet in biological aerated filter pond is communicated with the water-in of second-level settling pond, the water outlet of second-level settling pond is communicated with the water-in of sterilization pool, the water outlet of sterilization pool is communicated with rising pipe,
Wherein, described preliminary sedimentation tank comprises muddy water mixing zone successively, biofloculation district, settling section and mud enrichment region, the water-in on top, muddy water mixing zone is communicated with the water-in of preliminary sedimentation tank, the water outlet on top, muddy water mixing zone is communicated with the water-in on top, biofloculation district, the water outlet on top, biofloculation district is communicated with the water-in of bottom, settling section, the water outlet on top, settling section is communicated with the water-in in described biological aerated filter pond, muddy water mixing zone, the mud relief outlet of biofloculation district and bottom, settling section is all communicated with mud enrichment region, and described mud enrichment region is provided with the sludge reflux passage of the mud entrance that is communicated with top, muddy water mixing zone.
2. municipal wastewater treatment system according to claim 1, is characterized in that, described mud enrichment region is also provided with the sewage backflow passage of the sewage backflow mouth that is communicated with bottom, settling section.
3. municipal wastewater treatment system according to claim 1, is characterized in that, described muddy water mixing zone is provided with mechanical stirrer so that the sewage of being come in by water-in in muddy water mixing zone and the mud that refluxed by sludge reflux passage are mixed.
4. municipal wastewater treatment system according to claim 1, is characterized in that, described settling section is provided with packing layer, and described packing layer is honeycomb inclined-tube packing layer or pebbles packing layer.
5. municipal wastewater treatment system according to claim 1, is characterized in that, described coarse rack is provided with a plurality of thick grizzly bars that are parallel to each other, and the spacing between adjacent two thick grizzly bars is 10mm to 20mm.
6. municipal wastewater treatment system according to claim 1, is characterized in that, described fine fack is provided with a plurality of thin grizzly bars that are parallel to each other, and the spacing between adjacent two thin grizzly bars is 2mm to 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404522.3U CN204022621U (en) | 2014-07-21 | 2014-07-21 | Municipal wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404522.3U CN204022621U (en) | 2014-07-21 | 2014-07-21 | Municipal wastewater treatment system |
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| Publication Number | Publication Date |
|---|---|
| CN204022621U true CN204022621U (en) | 2014-12-17 |
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ID=52062513
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420404522.3U Expired - Fee Related CN204022621U (en) | 2014-07-21 | 2014-07-21 | Municipal wastewater treatment system |
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| CN (1) | CN204022621U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858738A (en) * | 2016-04-20 | 2016-08-17 | 尚川（北京）水务有限公司 | Sewage collection device, sewage treatment system and sewage treatment method |
| CN106746213A (en) * | 2016-12-20 | 2017-05-31 | 云南沃润特环境工程有限公司 | The municipal water treatment systems and method of composite photo catalyst |
| CN107098537A (en) * | 2017-04-25 | 2017-08-29 | 杭州之江市政建设有限公司 | Municipal wastewater handling process |
| CN107473472A (en) * | 2017-09-29 | 2017-12-15 | 项心力 | A kind of method based on physical chemistry coacervation processing sewage |
| CN108947145A (en) * | 2018-08-24 | 2018-12-07 | 江西中捷工程建设有限公司 | A kind of municipal sewage system |
-
2014
- 2014-07-21 CN CN201420404522.3U patent/CN204022621U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858738A (en) * | 2016-04-20 | 2016-08-17 | 尚川（北京）水务有限公司 | Sewage collection device, sewage treatment system and sewage treatment method |
| CN106746213A (en) * | 2016-12-20 | 2017-05-31 | 云南沃润特环境工程有限公司 | The municipal water treatment systems and method of composite photo catalyst |
| CN107098537A (en) * | 2017-04-25 | 2017-08-29 | 杭州之江市政建设有限公司 | Municipal wastewater handling process |
| CN107098537B (en) * | 2017-04-25 | 2019-12-03 | 杭州之江市政建设有限公司 | Municipal wastewater treatment process |
| CN107473472A (en) * | 2017-09-29 | 2017-12-15 | 项心力 | A kind of method based on physical chemistry coacervation processing sewage |
| CN108947145A (en) * | 2018-08-24 | 2018-12-07 | 江西中捷工程建设有限公司 | A kind of municipal sewage system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150721 |
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| EXPY | Termination of patent right or utility model |