CN102718365A - Buried sewage treatment device - Google Patents
Buried sewage treatment device Download PDFInfo
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- CN102718365A CN102718365A CN2012102181271A CN201210218127A CN102718365A CN 102718365 A CN102718365 A CN 102718365A CN 2012102181271 A CN2012102181271 A CN 2012102181271A CN 201210218127 A CN201210218127 A CN 201210218127A CN 102718365 A CN102718365 A CN 102718365A
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Abstract
The invention discloses a buried sewage treatment device. The device comprises a regulating tank, a primary settling tank, an anaerobic organism filter, an aerobiont contact oxidation tank, a secondary settling tank, a sand filter and a disinfecting tank, and the regulating tank, the primary settling tank, the anaerobic organism filter, the aerobiont contact oxidation tank, the secondary settling tank, the sand filter and the disinfecting tank are sequentially connected. According to the buried sewage treatment device, practical situations of the buried sewage treatment device in engineering design and engineering application are briefly summarized, advantages and disadvantages of a dynamic buried sewage treatment device are analyzed, and a suggest of selecting sewage treatment devices based on engineering actual situation is proposed.
Description
Technical field
The invention belongs to the waste disposal plant field, be specifically related to a kind of buried waste disposal plant.
Background technology
In the middle of the development of city process, some urban infrastructure construction such as sewage work often lag behind the construction in city, and in the area of municipal sewage pipe network no show, the residential quarters sanitary sewage disposal is the problem that is difficult to solution always.According to incompletely statistics, the pollutent of sewage has accounted for 40%～50% of water pollutant total amount in the city.Because the urban groundwater road sewage collection system of China is not perfect, sewage work's fraction of coverage is lower and the numerous not treated just directly dischargings of sewage that can't take over geographic biotope of causing cause the more serious problem of environmental pollution in order to solve.
Sewage comprises all waste water such as ight soil and wash-down water thereof, kitchen cooking water, bath wastewater.According to the 5th national census, China Rural Population is about 8.88 hundred million, accounts for 70.1% of population.Along with developing rapidly and the rapid raising of vast rural area living standards of the people and the obvious improvement of living condition of small towns, rural area; Population is lived and is concentrated day by day; The quantity discharged of domestic sewage in rural areas by using constantly increases, by 2010, and about 27,000,000,000 t of Chinese villages and small towns quantity of wastewater effluent.Yet; The sanitary sewage disposal ability in rural area, China small towns is low, processing mode falls behind; Main means are to build the stdn manure pit, and the miasma septic tank that adopts now then must be handled through follow-up facultative or aerobic filter tank just can reach national composite wastewater discharging secondary standard.In recent years; Domestic investigator applies mechanically city or industrial sewage biochemical treatment or materialization treatment technology, as adopting UASB (up-flow anaerobic sludge blanket), SBR (sequence bioreactor), membrane bioreactor and buried contact-oxidation pool etc. all owing to reasons such as investment is big, energy consumption is high, working cost is high, management difficulty is big are difficult to apply in the rural area; And study more artificial swamp technology at present and on its basis development and come artificial composite ecological bedly wait that treatment technology exists also that organic loading is lower, treatment effect receives seasonal effect greatly and the difficult shortcoming of routine maintenance.
The invention discloses a kind of buried waste disposal plant; Buried waste disposal plant practical situation in engineering design and practical applications have been sketched; Analyze the relative merits of dynamic buried waste disposal plant, proposed to select according to the engineering practical situation suggestion of waste disposal plant.
Summary of the invention
Technical purpose of the present invention is to disclose a kind of buried waste disposal plant; This Sewage treatment systems mainly adopts biological contact oxidation process; Under aerobic condition, utilize aerobic bacteria that the organism in the sewage is decomposed,, adopt AS type sump pump to tear, cut off, be delivered to biological contact oxidation pond to fibrous material and carry out a biological disposal upon owing to contain suspended substance, swimmer entering equalizing tank in the sewage; Through biomembranous effect on the contact-oxidation pool filler, make sewage purification; The microbial film that sewage comes off in contact-oxidation pool flows into secondary sedimentation basins to carry out sewage and separates.After the sewage inflow sand filter after the settling tank clarification carries out advanced treatment, get into sterilization pool and handle, after sterilization, it is reuse or discharging that sewage has been accomplished each item processing.
For realizing objects of the present invention, adopt following technical scheme:
1. a buried waste disposal plant is characterized in that comprising by equalizing tank, preliminary sedimentation tank, anaerobic biofilter, aerobic bio-contact oxidation pond, second pond, and sand filter, sterilization pool constitutes; Wherein, the order of connection successively of each component part is: equalizing tank, preliminary sedimentation tank, anaerobic biofilter, aerobic bio-contact oxidation pond, second pond, sand filter, sterilization pool.
2. described equalizing tank, it mainly regulates water quality, the water yield of sewage, and volume adjusted is looked the ununiformity of water and is decided, and generally gets the average water yield of 6-8 h, is provided with preaeration in the pond. can avoid anerobic sowage fermentation in the pond simultaneously.
3. described preliminary sedimentation tank, it is for economizing the general vertical sedimentation basin that adopts in ground, and upflow velocity 0.2-0.4 mm/s, surface load are 1.2-1.8 m
3/ m
2H, water outlet flows automatically to anaerobic biofilter, and sedimentary mud is carried to sludge sump with air.
4. described anaerobic biofilter, its length and width height is respectively: 18 m, 3 m, 4 m, filtrate volume and particle diameter of filter medium are respectively: 50 m
3, 35 mm filter the built on stilts thick biofilter material layer of one 2.5 m in the anaerobic pond, and filtrate adopts haydite of uniform size.
5. described aerobic bio-contact oxidation pond, it adopts the pulling flow type biological contact oxidation process, and is equipped with novel 3 D elastic filler, has certain flexibility and rigidity; Rebound performance is good, and material is lighter than water, can in water, evenly unfold; Aqueous vapor is done the multi-level cutting of intensive, improved the transmission coefficient of dissolved oxygen, reduce air quantity; Keep the solid space uniform density, the aqueous vapor microbial film fully contacted, can guarantee WWT after each item index up to standard comprehensively.
6. described second pond, the sewage behind the biochemistry flows to second pond, and it is 2 vertical sedimentation basin parallel runnings, and effect mainly is that deposition peels off the aged microbial film, and the second pond surface load is 1-1.3 m
3/ m
2H, upflow velocity are that 0.1-0.15 mm/s spoil disposal is carried to sludge sump with air.
7. described sand filter, it adopts forward flow filtering, countercurrent backwashing (filtrate is a silica sand, filtrate supporting layer 0.4 m, filter material layer 0.8 m, packed resin layer 0.5 m).
8. described sterilization pool; After the sand filter water outlet gets into sterilization pool; Contain a large amount of mikrobes and bacterium etc. in the water, the disinfection way of solid chlorine tablets contact lysis is adopted in sterilization, and the chlorine dioxide generator of employing disinfectant is also arranged; Disinfecting time is 30 min, can increase to 1-1.5 h if handle hospital sewage.
Description of drawings
The buried waste disposal plant schematic flow sheet of Fig. 1 the present invention;
Sewage water inlet pipe 1 among Fig. 1, grid 2, and equalizing tank 3, preliminary sedimentation tank 4, anaerobic pond 5, pump promotes 6, blower fan 7, aerobic bio-contact oxidation pond 8, second pond 9, sand filter 10, sterilization pool 11, discharging pond 12.
Embodiment
In conjunction with Fig. 1, the present invention is further described through embodiment.
Embodiment
Buried waste disposal plant of the present invention, its order of connection is followed successively by: sewage water inlet pipe 1, grid 2, equalizing tank 3, preliminary sedimentation tank 4, anaerobic pond 5, pump promotes 6, aerobic bio-contact oxidation pond 8, second pond 9, sand filter 10, sterilization pool 11, discharging pond 12.Blower fan 7 is connected aeration on the aerobic bio-contact oxidation pond 8.
Get into equalizing tank 3 through grid 2 preliminary filtering sewages; Because the inequality property of the discharge of sewage; Equalizing tank has adopted a pond to use in the technological design process more; Not only equalizing tank plays a part to regulate water quality, the water yield, and the function that can also tackle swimmer and bright oil, more effectively improves the biochemical of WWT.
Sewage after equalizing tank 3 is handled enters into preliminary sedimentation tank 4, and then gets into two anaerobic ponds of connecting each other 5, filters the built on stilts thick biofilter material layer of one 2.5 m in the anaerobic pond, and filtrate adopts haydite of uniform size.On filtrate was selected for use, it was the haydite of 45-50 mm that particle diameter is selected in last filter tank for use, and the particle diameter that one filter tank, back is selected for use is 35-40mm.For the danger that prevents filtrate to stop up, adopt three preventive measures: (1) adds fine and closely woven grid one getting into the ingress of filtering anaerobic pond, adds access opening in the ingress simultaneously, removes tamper at any time; (2) the filler layering is provided with, every layer of thick 0.5～1.0 m of filler, and interlayer stays the gap of 0.25 ~ 0.4 m, to prevent obstruction, reaches the purpose of rectification again; (3) make filter material layer and can rotate the filter material layer that a fixed gap is left on top, built on stilts with a rotating shaft filter material layer.During works better, the filter material layer two ends hang with steel wire, avoid unstability to tilt.When filter material layer stops up, then utilize wireline to rotate filter material layer, turn filter material layer, make closely that filtering material particle relatively moves, become loose.Also carry out back flushing simultaneously, reach and remove the purpose of stopping up.
The sewage of handling through anaerobic pond 5 gets into aerobic bio-contact oxidation pond 8, and contact-oxidation pool is divided into three grades, total residence time 4～5 h; After sewage gets into contact-oxidation pool; Under aerobic condition, the organism in the sewage changes into stable material through the metabolism attached to the mikrobe on the filler; Simultaneously, entering sewage is peeled off from filling surface in the aging back of aerobic bacteria growth.Filler is novel elastic filler, easy conjunctiva, and packing specific area can reach 400 m
2/ m
3, GWR is about 12:1.
Sewage behind the biochemistry flows to second pond 9, and it is 2 vertical sedimentation basin parallel runnings, and effect mainly is that deposition peels off the aged microbial film, and the second pond surface load is 1-1.3 m
3/ m
2H, upflow velocity are that 0.1-0.15 mm/s spoil disposal is carried to sludge sump with air.
What sand filter 10 adopted is forward flow filtering, countercurrent backwashing; After the sand filter water outlet gets into sterilization pool; Contain a large amount of mikrobes and bacterium etc. in the water, the disinfection way of solid chlorine tablets contact lysis is adopted in sterilization, and the chlorine dioxide generator of employing disinfectant is also arranged; Disinfecting time is 30 min, can increase to 1-1.5 h if handle hospital sewage.
The process characteristic of this device:
(1) adopts advanced A/O method (anaerobism+aerobic) treatment process;
(2) sludge yield is few, need not sludge treatment device;
(3) the organic pollutant removal rate is high, stable effluent quality, and capacity of resisting impact load is strong;
(4) denitrogenation dephosphorizing, water outlet can be gone into natural water body;
(5) be embedded in undergroundly, take up an area of fewly, also can be located on the ground;
(6) a plurality of unit join, and become extensive sewage-farm;
(7) working cost is low;
(8) one-time investment few (saving more than 50%) than traditional technology;
(9) installation is simple and easy, convenient management;
(10) buried purification tank did not generally bear the car load, adopted reinforcing structure when high load is arranged.
Claims (8)
1. a buried waste disposal plant is characterized in that comprising by equalizing tank, preliminary sedimentation tank, anaerobic biofilter, aerobic bio-contact oxidation pond, second pond, and sand filter, sterilization pool constitutes; Wherein, the order of connection successively of each component part is: equalizing tank, preliminary sedimentation tank, anaerobic biofilter, aerobic bio-contact oxidation pond, second pond, sand filter, sterilization pool.
2. buried waste disposal plant according to claim 1 is characterized in that described equalizing tank gets the average water yield of 6-8 h, is provided with preaeration in the pond.
3. buried waste disposal plant according to claim 1 is characterized in that described preliminary sedimentation tank adopts vertical sedimentation basin, and upflow velocity 0.2-0.4 mm/s, surface load are 1.2-1.8 m
3/ m
2H, water outlet flows automatically to anaerobic biofilter, and sedimentary mud is carried to sludge sump with air.
4. buried waste disposal plant according to claim 1 is characterized in that the length and width height of described anaerobic biofilter is respectively: 18 m, and 3 m, 4 m, filtrate volume and particle diameter of filter medium are respectively: 50 m
3, 35 mm filter the built on stilts thick biofilter material layer of one 2.5 m in the anaerobic pond, and filtrate adopts haydite of uniform size.
5. buried waste disposal plant according to claim 1 is characterized in that described aerobic bio-contact oxidation pond employing pulling flow type biological contact oxidation process, and is equipped with 3 D elastic filler.
6. buried waste disposal plant according to claim 1 is characterized in that described second pond is 2 vertical sedimentation basin parallel runnings, and its surface load is 1-1.3 m
3/ m
2H, upflow velocity are that 0.1-0.15 mm/s spoil disposal is carried to sludge sump with air.
7. buried waste disposal plant according to claim 1, the filtrate that it is characterized in that described sand filter is a silica sand, filtrate supporting layer 0.4 m, filter material layer 0.8 m, packed resin layer 0.5 m.
8. buried waste disposal plant according to claim 1 is characterized in that described sterilization pool adopts the disinfection way of solid chlorine tablets contact lysis, perhaps adopts the chlorine dioxide generator disinfection way; Disinfecting time is 30 min-1.5 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102181271A CN102718365A (en) | 2012-06-28 | 2012-06-28 | Buried sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102181271A CN102718365A (en) | 2012-06-28 | 2012-06-28 | Buried sewage treatment device |
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| CN102718365A true CN102718365A (en) | 2012-10-10 |
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| CN2012102181271A Pending CN102718365A (en) | 2012-06-28 | 2012-06-28 | Buried sewage treatment device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174618A (en) * | 2015-09-14 | 2015-12-23 | 湖州道场污水处理有限公司 | Environment-friendly treatment process of domestic sewage |
| CN105293837A (en) * | 2015-11-27 | 2016-02-03 | 许庭庭 | Medical sewage treatment device with bactericidal function |
| CN105293836A (en) * | 2015-11-27 | 2016-02-03 | 许庭庭 | Sewage treatment device |
| CN105481207A (en) * | 2016-02-16 | 2016-04-13 | 大理飞鱼环保科技有限公司 | Systematic treatment method and device for restaurant wastewater |
| CN108675560A (en) * | 2018-06-11 | 2018-10-19 | 河海大学 | A kind of domestic sewage processing system |
| CN109928585A (en) * | 2019-04-26 | 2019-06-25 | 范保峰 | A kind of integration cement quotient's concrete tank body sewage disposal device |
| CN111732277A (en) * | 2020-06-28 | 2020-10-02 | 上海中汇水生态科技有限公司 | Rural domestic sewage treatment system |
| CN115215505A (en) * | 2022-05-25 | 2022-10-21 | 中誉设计有限公司 | Sewage treatment system with strong impact load resistance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285322A (en) * | 2000-09-21 | 2001-02-28 | 上海佛欣爱建河道治理有限公司 | Urban underground pipeline type sewage treatment equipment |
| CN102241457A (en) * | 2010-05-11 | 2011-11-16 | 江苏清溢环保设备有限公司 | Integrated underground economical sanitary sewage treatment apparatus |
| CN202658053U (en) * | 2012-06-28 | 2013-01-09 | 苏州科博思流体科技有限公司 | Buried sewage treatment device |
-
2012
- 2012-06-28 CN CN2012102181271A patent/CN102718365A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285322A (en) * | 2000-09-21 | 2001-02-28 | 上海佛欣爱建河道治理有限公司 | Urban underground pipeline type sewage treatment equipment |
| CN102241457A (en) * | 2010-05-11 | 2011-11-16 | 江苏清溢环保设备有限公司 | Integrated underground economical sanitary sewage treatment apparatus |
| CN202658053U (en) * | 2012-06-28 | 2013-01-09 | 苏州科博思流体科技有限公司 | Buried sewage treatment device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174618A (en) * | 2015-09-14 | 2015-12-23 | 湖州道场污水处理有限公司 | Environment-friendly treatment process of domestic sewage |
| CN105174618B (en) * | 2015-09-14 | 2018-03-16 | 湖南中集环境投资有限公司 | A kind of environment-friendly treating process of sanitary sewage |
| CN105293837A (en) * | 2015-11-27 | 2016-02-03 | 许庭庭 | Medical sewage treatment device with bactericidal function |
| CN105293836A (en) * | 2015-11-27 | 2016-02-03 | 许庭庭 | Sewage treatment device |
| CN105481207A (en) * | 2016-02-16 | 2016-04-13 | 大理飞鱼环保科技有限公司 | Systematic treatment method and device for restaurant wastewater |
| CN108675560A (en) * | 2018-06-11 | 2018-10-19 | 河海大学 | A kind of domestic sewage processing system |
| CN109928585A (en) * | 2019-04-26 | 2019-06-25 | 范保峰 | A kind of integration cement quotient's concrete tank body sewage disposal device |
| CN111732277A (en) * | 2020-06-28 | 2020-10-02 | 上海中汇水生态科技有限公司 | Rural domestic sewage treatment system |
| CN115215505A (en) * | 2022-05-25 | 2022-10-21 | 中誉设计有限公司 | Sewage treatment system with strong impact load resistance |
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Application publication date: 20121010 |