CN202881057U - Multifunctional sewage-treatment device - Google Patents
Multifunctional sewage-treatment device Download PDFInfo
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- CN202881057U CN202881057U CN2012205749535U CN201220574953U CN202881057U CN 202881057 U CN202881057 U CN 202881057U CN 2012205749535 U CN2012205749535 U CN 2012205749535U CN 201220574953 U CN201220574953 U CN 201220574953U CN 202881057 U CN202881057 U CN 202881057U
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Abstract
The utility model discloses a multifunctional sewage-treatment device. The multifunctional sewage-treatment device comprises a water inlet, a water outlet, a supporting layer, a filter material layer, a depositing part, a sludge hopper and aeration equipment, wherein the filter material layer is positioned above the supporting layer; the depositing part is positioned below the supporting layer; the sludge hopper is positioned at the bottom of the depositing part; the aeration equipment is positioned on the lower part of the supporting layer; the water inlet is positioned in the depositing part; and the water outlet is positioned above the filter material layer. The multifunctional sewage-treatment device disclosed by the utility model can be used for integrating an aerating biological filter system and a depositing tank system and well establishing a complex sewage-treatment system and has the advantages of good treatment effect on low-concentration low-flow and dispersed sewage, stability and safety in operation and easiness and convenience for operation.
Description
Technical field
The utility model relates to a kind of waste disposal plant, especially relates to BAF.
Background technology
Because the malconformation of Economic development and the singularity of town development, particularly the construction of Small Town Wastewater gathering system and treatment facility lags behind, cause the processing rate of Small Town Wastewater less than 10%, raw sewerage can arbitrarily be discharged, cause the continuous deterioration of surrounding enviroment, become zonal important source of pollution.The characteristics of Small Town Wastewater are that source of pollution relatively disperse, and the water yield of part point-source pollution is little, and the concentration of pollutent is low, usually can directly be discharged, and cause pollutent finally to be discharged in the rivers and lakes, cause large-area pollution.
Although at present for the larger urban sewage treatment technology of sewage quantity and facility developed quite ripe, but traditional sanitary sewage disposal measure is relatively loaded down with trivial details, structures are more, investment is large, the operation operational management is complicated, and is not suitable for directly using in the sewage disposal of lower concentration, the little water yield.
BAF belongs to a kind of of membrane bioreactor, its processing efficiency is high, the anti impulsion load performance is good, the sludge bulking problem that does not have activated sludge process, can keep higher sludge age, rich and varied biological fully degradation of contaminant is realized closed operation, solves the bad-smell problem of sewage disposal.Common BAF comprises packing layer, aerating system, inlet and outlet system and the back-purge system that is arranged on the supporting layer.
BAF can be held back the partial suspended thing in the sewage and the aging microbial film that comes off after operation for some time on the packing layer, thereby increases systemic resistance, cuts down sewage treatment capacity, reduces the effluent quality of system.Therefore after operation for some time, need BAF is carried out back flushing, to guarantee the normal operation of BAF.But the design requirements to back-purge system is higher, and water distribution will guarantee evenly.If the backwashing water quantity not sufficient can cause the filtrate of subregion felt jam to occur, lose its purifying water effect; If the back flushing water yield is larger, the lighter filtrate of the less proportion of part particle diameter is run off, also may cause filter material layer to occur all mixed, thereby affect the oxygen-transfer efficiency of aerating system.
Therefore can there be following problem in the sewage that uses traditional waste disposal plant to process lower concentration, low discharge and dispersion: use equipment is more, the operation complex process, and running cost is higher.
Summary of the invention
The purpose of this utility model provides a kind of Multi-functional effluent treatment unit, can be effectively for lower concentration, the water yield is few and the sewage that disperses is processed, easy and simple to handle, operating safety is stable.
Technical solution of the present utility model is: a kind of Multi-functional effluent treatment unit, it comprises water-in, water outlet, supporting layer, filter material layer, precipitation section, sludge bucket and aerator, wherein filter material layer is positioned at the supporting layer top, precipitation section is positioned at the supporting layer below, sludge bucket is positioned at precipitation section bottom, aerator is positioned at the supporting layer bottom, and water-in is positioned at precipitation section, and water outlet is positioned at the filter material layer top.
Filter material layer, supporting layer and aerator form the BAF system, precipitation section and sludge bucket form sedimentation tank system, water-in is arranged in the precipitation section, be positioned at the filter material layer below, the first sedimentation layering in precipitation section of the muddy water of access to plant, mud falls in the sludge bucket, sewage upwards passes through filter material layer, the pollution substance of being held back by filter material layer in the microbial film Degradation and Transformation water body on the filtrate, the organism of dissolved state and predetermined substance are also decomposed simultaneously to be removed, and the clear water after the purification is discharged from top water outlet overflow.Aerator is positioned at the middle part of device, and the sewage in the filter material layer of top is carried out oxygenation, and air-flow can provide the power that water body rises simultaneously.By integrate BAF and sedimentation tank system in a device, the sewage that passes into is through precipitation, the filtration of filtrate and the effect of microorganism of precipitation section, and effluent quality is good, and cleansing operation is easy, and operating safety is stable.
It also is provided with the guide shell that extends to vertically downward from described filter material layer top in the described precipitation section, and an end of this guide shell is connected with extraneous water inlet, and the other end is connected with described water-in.Muddy water is imported in the precipitation section of bottom from the top by guide shell, make into water direction and water outlet opposite direction, be conducive to minute water in precipitation section, improve settling efficiency.
Lower horizontal at described water-in is provided with reflector.Reflector can effectively be changed the direction of a stream of water, and accelerates the precipitation of suspended substance.
Be provided with mud discharging equipment in described sludge bucket bottom.Described mud discharging equipment comprises shore pipe and spoil disposal control valve.By shore pipe that the mud in the sludge bucket is emptying before back flushing.
Be provided with backwashing equipment in described supporting layer bottom.By backwashing water the suspended substance of holding back in the filter material layer and the microbial film flushing that comes off are removed, improved the trafficability characteristic of filter material layer, form mixing wastewater with air in conjunction with aerator and unite flushing, form stronger shearing action, can fully guarantee cleaning performance.
Above described filter material layer, be provided with backwashing equipment.Backwashing water flows to opposite with the sewage traffic direction, can make the microbial film that comes off and the suspended substance of holding back break away from filter material layer through the shortest distance, reduces the wash water amount, reduces whole energy consumption.
The utility model has the advantages that: integrate BAF system and sedimentation tank system, can well set up the Sewage treatment systems of a complexity, to the good sewage processing effect of lower concentration, low discharge and dispersion, stable and safe in operation, easy and simple to handle.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment 1;
Accompanying drawing 2 is the structural representation of the utility model embodiment 2;
1, filter material layer, 2, supporting layer, 3, precipitation section, 4, sludge bucket, 5, water-in, 6, water outlet, 7, filtrate, 8, guide shell, 9, reflector, 10, grid, 11, aeration tube, 12, the aeration control valve, 13, back flushing water pipe, 14, backwashing water control valve, 15, shore pipe, 16, the spoil disposal control valve.
Embodiment
Embodiment 1:
Consult Fig. 1, be a kind of Multi-functional effluent treatment unit, it comprises water-in 5, water outlet 6, supporting layer 2, filter material layer 1, precipitation section 3, sludge bucket 4, aeration tube 11, guide shell 8, reflector 9 and grid 10, wherein filter material layer 1 is positioned at supporting layer 2 tops, precipitation section 3 is positioned at supporting layer 2 belows, sludge bucket 4 is positioned at the bottom of precipitation section 3, aeration tube 11 is positioned at the bottom of supporting layer 2, grid 10 is arranged on the top of filter material layer 1, push down filtrate 7, guide shell 8 one ends are communicated with extraneous water inlet, the other end vertically passes filter material layer 1, supporting layer 2 enters in the precipitation section 3, water-in 5 is arranged on the guide shell 8 in the precipitation section 3, and the lower horizontal of water-in 5 is provided with the reflector 9 of taper, and water outlet 6 is positioned at the top of filter material layer 1.Aeration tube 11 is provided with aeration control valve 12, is used for the aeration rate that control enters.Be provided with back flushing water pipe 13 in the bottom of supporting layer 2, be provided with backwashing water control valve 14 at back flushing water pipe 13.Be provided with shore pipe 15 in the bottom of sludge bucket 4, shore pipe 15 is provided with spoil disposal control valve 16.
Under the normal operating condition, sewage by guide shell 8 introduce from the top down precipitation section 3 interior after, remove partial suspended thing SS when changing upwelling into, lasting rising enters in the filter material layer 1, pass into simultaneously aeration aerating, the air-flow size can be according to the DO concentration control in filter tank, and general regulation and control are not more than 2mg/L in DO concentration, and the clear water after the purification is by water outlet 7 overflow discharges.Adopt water-gas combined irrigation in the same way during back flushing, open aeration when namely passing into backwashing water, along the sewage ascent direction filter material layer 1 is washed.In the situation that mixing wastewater with air has very strong shearing action to filtrate 7, can fully peel off active relatively poor microbial film on the filtrate 7, but can cause so intrasystem microbial film quantity after back flushing, significantly to reduce, affect decontamination effect improving.Therefore must the strict intensity of controlling the back flushing air water.The floating trapped substance that back flushing produces can be got rid of by the residue extraction mechanism that the filter material layer top arranges.
Filtrate 7 is selected one or more combination of the filtrates such as gravel, volcanics, diatomite, gac or modification haydite.The top of filtrate 7 arranges grid 10, prevents that filtrate runs off with current.
Embodiment 2:
Consult Fig. 2, be another kind of Multi-functional effluent treatment unit, it comprises water-in 5, water outlet 6, supporting layer 2, filter material layer 1, precipitation section 3, sludge bucket 4, aeration tube 11, guide shell 8, reflector 9 and grid 10, the difference part of itself and embodiment 1 is: be provided with back flushing water pipe 13 above filter material layer 1, be provided with backwashing water control valve 14 at back flushing water pipe 13.Its backwash process is the reverse flow mode, i.e. during back flushing, backwashing water enters downwards from filter material layer 1 top, and the suspended substance of holding back on the filtrate 7 or the microbial film that comes off need not pass through whole filter material layer, directly oppositely go out filter material layer and enter in the precipitation section 3.Under this backwashing manner, do not need to use aerator.
Because reverse flushing can produce a large amount of muddy water, therefore before back flushing, need to carry out first the spoil disposal operation, sludge bucket 4 is emptying.
The other technologies feature is identical with embodiment 1, does not repeat them here.
Above-listed detailed description is specifying for one of the utility model possible embodiments, this embodiment limits claim of the present utility model, allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (7)
1. Multi-functional effluent treatment unit, it is characterized in that: it comprises water-in, water outlet, supporting layer, filter material layer, precipitation section, sludge bucket and aerator, wherein filter material layer is positioned at the supporting layer top, precipitation section is positioned at the supporting layer below, sludge bucket is positioned at precipitation section bottom, aerator is positioned at the supporting layer bottom, and water-in is positioned at precipitation section, and water outlet is positioned at the filter material layer top.
2. a kind of Multi-functional effluent treatment unit according to claim 1, it is characterized in that: it also is provided with the guide shell that extends to vertically downward from described filter material layer top in the described precipitation section, one end of this guide shell is connected with extraneous water inlet, and the other end is connected with described water-in.
3. a kind of Multi-functional effluent treatment unit according to claim 2, it is characterized in that: the lower horizontal at described water-in is provided with reflector.
4. it is characterized in that according to claim 1 and 2 or 3 described a kind of Multi-functional effluent treatment units: be provided with mud discharging equipment in described sludge bucket bottom.
5. a kind of Multi-functional effluent treatment unit according to claim 4, it is characterized in that: described mud discharging equipment comprises shore pipe and spoil disposal control valve.
6. a kind of Multi-functional effluent treatment unit according to claim 5 is characterized in that: be provided with backwashing equipment in described supporting layer bottom.
7. a kind of Multi-functional effluent treatment unit according to claim 5 is characterized in that: be provided with backwashing equipment above described filter material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205749535U CN202881057U (en) | 2012-11-02 | 2012-11-02 | Multifunctional sewage-treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205749535U CN202881057U (en) | 2012-11-02 | 2012-11-02 | Multifunctional sewage-treatment device |
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| Publication Number | Publication Date |
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| CN202881057U true CN202881057U (en) | 2013-04-17 |
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| CN2012205749535U Expired - Lifetime CN202881057U (en) | 2012-11-02 | 2012-11-02 | Multifunctional sewage-treatment device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566636A (en) * | 2013-11-18 | 2014-02-12 | 曹辉 | External sewage treatment unit |
| CN106517654A (en) * | 2016-11-18 | 2017-03-22 | 绥阳县双龙纸业有限公司 | Sludge treatment process |
| CN107304083A (en) * | 2016-04-19 | 2017-10-31 | 西原环保工程(上海)有限公司 | A kind of annular jet aerator |
| CN107381965A (en) * | 2017-08-31 | 2017-11-24 | 常州道博化工有限公司 | A kind of integrated sewage treating apparatus |
| CN108238703A (en) * | 2018-03-09 | 2018-07-03 | 中国水产科学研究院黄海水产研究所 | System for circulating water aquaculture by using biofilter-artificial wetland |
| CN114249488A (en) * | 2021-12-07 | 2022-03-29 | 泸州老窖股份有限公司 | Biological aerated filter for treating brewing wastewater and treatment system |
-
2012
- 2012-11-02 CN CN2012205749535U patent/CN202881057U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566636A (en) * | 2013-11-18 | 2014-02-12 | 曹辉 | External sewage treatment unit |
| CN103566636B (en) * | 2013-11-18 | 2015-12-30 | 曹辉 | A kind of external sewage treating apparatus |
| CN107304083A (en) * | 2016-04-19 | 2017-10-31 | 西原环保工程(上海)有限公司 | A kind of annular jet aerator |
| CN106517654A (en) * | 2016-11-18 | 2017-03-22 | 绥阳县双龙纸业有限公司 | Sludge treatment process |
| CN106517654B (en) * | 2016-11-18 | 2019-06-25 | 安徽天月环境工程有限公司 | A kind of sewage treatment process |
| CN107381965A (en) * | 2017-08-31 | 2017-11-24 | 常州道博化工有限公司 | A kind of integrated sewage treating apparatus |
| CN108238703A (en) * | 2018-03-09 | 2018-07-03 | 中国水产科学研究院黄海水产研究所 | System for circulating water aquaculture by using biofilter-artificial wetland |
| CN114249488A (en) * | 2021-12-07 | 2022-03-29 | 泸州老窖股份有限公司 | Biological aerated filter for treating brewing wastewater and treatment system |
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Address after: 510380 Jin Hao building, No. 83, flower land Avenue, Guangdong, Guangzhou, No. 16, China Patentee after: Guangzhou Xinzhi Environmental Protection Industry Co.,Ltd. Address before: 510380 Jin Hao building, No. 83, flower land Avenue, Guangdong, Guangzhou, No. 16, China Patentee before: GUANGZHOU NEWEARTH ENVIRONMENTAL PROTECTION INDUSTRY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |