CN102107984A - Integrated device for rural dispersive sewage treatment - Google Patents

Integrated device for rural dispersive sewage treatment Download PDF

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Publication number
CN102107984A
CN102107984A CN2009102436870A CN200910243687A CN102107984A CN 102107984 A CN102107984 A CN 102107984A CN 2009102436870 A CN2009102436870 A CN 2009102436870A CN 200910243687 A CN200910243687 A CN 200910243687A CN 102107984 A CN102107984 A CN 102107984A
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CN
China
Prior art keywords
sewage
rural
integrated
technology
oxidation pond
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Pending
Application number
CN2009102436870A
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Chinese (zh)
Inventor
单保庆
胡春明
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Research Center for Eco Environmental Sciences of CAS
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Research Center for Eco Environmental Sciences of CAS
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Application filed by Research Center for Eco Environmental Sciences of CAS filed Critical Research Center for Eco Environmental Sciences of CAS
Priority to CN2009102436870A priority Critical patent/CN102107984A/en
Publication of CN102107984A publication Critical patent/CN102107984A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention relates to an integrated device for rural dispersive sewage treatment. Based on the characteristics of disperse distribution, large water quality difference, large water quantity change, irregular discharge and the like of rural sewage, the invention develops a sewage treatment process and equipment for wide rural areas in China, which is convenient to manage and operate and has the advantages of low operating energy consumption and fine treatment effect. The invention is characterized in that a settling pond technology, a biologic contact oxidation pond technology and a compound vertical underflow artificial wetland technology are combined into a technology system, and physical, chemical, biological and ecological processing units are combined, thereby effectively purifying rural disperse sewage. After structural and technological optimization, the process can be formed into an integrated device so as to meet the requirements for practical application. The invention has the characteristics of fine pollutant purifying effect, flexible use and installation and the like, and is convenient to operate and manage.

Description

The integrated device that is used for the rural dispersed sewage disposal
Technical field:
The present invention relates to a kind of treatment process that can be applicable to the decentralized sewage purification in vast rural area, also, belong to field of environment engineering technology based on the integrated device of this technology.
Background technology:
Country sewage mainly comprises fecal sewage that sanitary sewage, lavatory discharge, garden dirt (rain) water, poultry livestock colony house sewage, poultry excrement of animals etc., the surrounding enviroment that directly enter sewage have caused serious " filthy " phenomenon, being the major reason of villages and small towns regional water body pollution and body eutrophication, also is potential transmissible disease pathogeny.
According to the relevant report estimation of the Ministry of Construction, national domestic sewage in rural areas by using year total emission volumn be about 108.2 hundred million tons, mainly be distributed in densely populated east and middle area.There is the above city of half organizational system in the whole nation and lacks sewage facility for the central disposal and sewerage pipeline network near all rural areas at present, and a large amount of unprocessed water bodys that directly enter of sanitary sewage have caused serious contamination phenomenon.
Urban residents are sparsely populated, the sanitary sewage discharging is random, backward in economy, the low inferior characteristics of sewage disposal operation and management level, determined in present stage, and China's domestic sewage in rural areas by using is difficult to carry out centralized collection to be handled.The on-the-spot disposal of decentralized sewage then is a kind of feasible method.
The technology that is applied to handle dispersion type domestic wastewater at present has aerobic treatment processes such as biomembrance process, activated sludge process; Anaerobic treatment process such as upflow type anaerobic sludge reaction bed, anaerobic composite bed; Anaerobic-aerobic (A/O), the aerobic (A of anaerobism anoxic 2/ O) wait the associating biological treatment; Ecological Disposal technologies such as artificial swamp, land percolation, oxidation pond.System is a run entity with small-sized integrated device generally.Present integral type scattering sewage treatment device both domestic and external mostly is sheet glass or steel plate materials is made, and " tandoku-shori " purification tank as the Japanese independent development of Japan is used for the processing of lavatory flushing water; " gappei-shori " purification tank is used for the blended sanitary sewage disposal; The presetting system of Norway development is miniature treatment facility etc. on the spot.
Domestic and international existing dispersion type domestic wastewater treatment unit major part designs at urban cells sewage.China's domestic sewage in rural areas by using is owing to be subjected to the influence of residents'living habit, and its water quality and quantity feature and urban cells sewage exist than big-difference, and typical feature is that decentralized distributes, and the water quality difference is big, the water yield changes greatly, discharging is irregular.In addition, the Rural areas is owing to be subjected to the restriction of economic technology condition, and sewage focuses on or adopt complicated technology to purify all big difficulty.Therefore, the research and development that are applicable to the integrated device of rural dispersed sewage have big meaning.
Summary of the invention:
The object of the invention is to research and develop a kind of vast Rural areas of China that is applicable to, bookkeeping is easy, and operation energy consumption is low, sewage treatment process that treatment effect is good and equipment.
For achieving the above object, the technical solution used in the present invention is: with the synthetic technical system (Fig. 1) of settling tank technology, biological contact oxidation pond technology and compound vertical subsurface flow wetland technology groups, and, form a whole set of sewage disposal device (Fig. 2) through structure and technical optimization.
A, settling tank adopt vertical-flow, cylindric, are positioned at equipment center.Sanitary sewage enters system from the settling tank bottom, and after mainly purifying through physical and chemical process, the top overflow enters next processing unit.
B, biological contact oxidation pond are circular, are positioned at the settling tank outer shroud, and sewage enters the contact-oxidation pool bottom by upflow tube from the settling tank top, and overflow enters artificial swamp again.Hang combined stuffing in the pond, make microbial film adhere to generation, mainly by bioprocess purifying contaminated thing.
C, compound vertical subsurface flow wetland are advanced treatment unit, are made of four vertical current constructed wetland series connection, are positioned at the biological contact oxidation pond outside.Sewage enters wetland from the top, passes through downstream, up stream, downstream, up stream successively, final overflow discharging.
Technical system of the present invention mainly contains following characteristics with the configuration setting: 1) materialization, biology, Ecological Disposal unit combine, and can successfully manage domestic sewage in rural areas by using water quality, water yield variation, ensure wastewater purifying efficiency; 2) Ecological Disposal unit---the application of artificial swamp greatly reduces the working cost and the management difficulty of equipment; What 3) multistage combined artificial wetland can be suited measures to local conditions is configured wet land filler, realizes the optimization of hydraulics and decontamination effect improving; 4) three processing units distribute from inside to outside successively, and the configuration compactness effectively saves floor occupying area; 5) biological unit is embedded in biotope, helps the maintenance of temperature in the biological unit, improves its Treatment Stability and low temperature tolerance ability; 6) artificial swamp is positioned at the device outside, and wherein growing plants realizes that view makes up, but and the settling tank in radical occlusion device centre and biological contact oxidation pond.
Description of drawings:
Fig. 1 is the process flow sheet of the present invention's integrated device.
Fig. 2 is the structural representation of the present invention's integrated device.Among the figure, the 1-vertical sedimentation tank; The 2-biological contact oxidation pond; The 3-vertical subsurface flow wetland.
Embodiment:
Below in conjunction with example essence of the present invention and embodiment are further illustrated:
The present invention is a kind of sewage treatment process that designs at rural dispersed sanitary sewage water quality and quantity feature, adopts vertical sedimentation tank, biological contact oxidation pond and compound vertical subsurface flow wetland combination technique, reaches the purpose of sewage purification and discharge.Vertical sedimentation tank is the one-level physicochemical treatment unit, and sewage enters from the bottom, and in uphill process, most of particulate matter is precipitated removal.In addition, settling tank also plays effects such as regulating water quality and quantity, degraded part larger molecular organics.Biological contact oxidation pond is the two stage biological processing unit, wherein hangs elastic solid filler, by adhering to the microbial film of generation on the filler, purifies most of organism and part nitrogen, phosphorus.Composite vertical current artificial wetland is three grades of Ecological Disposal unit, gives full play to the stability of ecosystem water quality purification function, by absorption, filtration, plant absorbing and microbial process, and residual each pollutant in the deep purifying water body.Three processing units complement each other, and can tackle the impact of hydraulic load, pollution load, also can fully adapt to various climatopes, the practical value that develops skill.
A kind of integrated device of optimizing through configuration, profile is right cylinder, and therefrom mind-set is followed successively by vertical sedimentation tank, biological contact oxidation pond and composite vertical current artificial wetland outward, and diameter proportion is 1: 2.5: 5.During practical application,, rationally adjust the size of each processing unit according to the flow rate fluctuation scope of intending disposing of sewage,
The concrete application method of the present invention is set forth in conjunction with the embodiments:
Example 1:
Certain rural area, the north is subjected to economics dictate, is not suitable for building sewage work and lay the sewage collecting pipe network in the village.Therefore, intend being that each household is equipped with cover apparatus of the present invention, make qualified discharge after the sanitary sewage disposal.This rural area each household resident 4-5 people, domestic consumption is about 76 liters of every days per capita, considers the fluctuations in discharge coefficient, designs 0.5 ton of every day by two family resident's sewage generations.Application flow is as follows:
1) size is determined.According to flow, adjust each cell size of integrated device.The diameter of vertical sedimentation tank, biological contact oxidation pond and composite vertical current artificial wetland is decided to be 20cm, 50cm, 100cm respectively, highly is 100cm.
2) device processing.According to the size of determining, the processing integrated device.Simultaneously elastic solid filler is hung in the biological contact oxidation pond.
3) device is laid.Consider that northern low temperature will produce certain influence to treatment process, adopt the buried integrated device of laying, place in peasant household's garden.
4) the artificial swamp filler is selected, is filled.According to economical and practical, obtain principle easily, select local near the gravel in stone quarry as wet land filler.Four vertical current constructed wetlands are pressed and are adopted greater particle size gravel (16cm-24cm) in preceding two tracts of wetlands of flow direction, adopt the gravel of 10cm-16cm particle diameter to fill in back two tracts of wetlands, to slow down the generation that wetland stops up.
5) constructed wetland plant is selected, is planted.Selection has resistant, soil removability, can make up the plant of view simultaneously again, comprises reed, Scirpus tabernaemontani, Canna generalis Bailey, cattail, and mixed planting is in wetland.
6) support equipment: for the holdout device operation, need 1 of lift pump, cesspool sewage is delivered into integrated device; Need 1 of aerator in addition, to the biological contact oxidation pond oxygen supply.

Claims (2)

1. a sewage treatment process that designs at rural dispersed sanitary sewage water quality and quantity feature is characterized by: be the one-level physicochemical treatment unit with the vertical sedimentation tank, remove most of particulate matter, regulate water quality and quantity, degraded part larger molecular organics simultaneously; With the biological contact oxidation pond is the two stage biological processing unit, by adhering to the microbial film of generation on the filler, purifies most of organism and part nitrogen, phosphorus.With composite vertical current artificial wetland is three grades of Ecological Disposal unit, by ecosystem absorption, filtration, plant absorbing and microbial process, and residual each pollutant in the deep purifying water body.
2. one kind is passed through the integrated device that configuration is optimized, and it is characterized by: the device profile is right cylinder, and therefrom mind-set is followed successively by vertical sedimentation tank, biological contact oxidation pond and composite vertical current artificial wetland outward, and diameter proportion is 1: 2.5: 5.
CN2009102436870A 2009-12-23 2009-12-23 Integrated device for rural dispersive sewage treatment Pending CN102107984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102436870A CN102107984A (en) 2009-12-23 2009-12-23 Integrated device for rural dispersive sewage treatment

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Application Number Priority Date Filing Date Title
CN2009102436870A CN102107984A (en) 2009-12-23 2009-12-23 Integrated device for rural dispersive sewage treatment

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CN102107984A true CN102107984A (en) 2011-06-29

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061398A (en) * 2012-05-24 2013-04-24 北京建筑工程学院 Drainage partition optimized design method of rural life sewage treatment project
CN103936226A (en) * 2014-04-04 2014-07-23 环境保护部南京环境科学研究所 Artificial wetlands system suitable for low-temperature operation and operating method thereof
CN108558009A (en) * 2018-05-15 2018-09-21 湖南金旅环保股份有限公司 A kind of power-free integrated rural scattered domestic sewage treatment device
CN111285472A (en) * 2020-03-31 2020-06-16 无锡市太湖湖泊治理股份有限公司 Constructed wetland treatment system and application thereof
CN112456647A (en) * 2020-12-16 2021-03-09 中国科学院生态环境研究中心 Distributed treatment device that domestic sewage discharge characteristic suits
CN112811573A (en) * 2019-11-18 2021-05-18 贵州通用水务技术发展有限公司 Sewage treatment method, sewage treatment device and application

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061398A (en) * 2012-05-24 2013-04-24 北京建筑工程学院 Drainage partition optimized design method of rural life sewage treatment project
CN103936226A (en) * 2014-04-04 2014-07-23 环境保护部南京环境科学研究所 Artificial wetlands system suitable for low-temperature operation and operating method thereof
CN103936226B (en) * 2014-04-04 2015-09-09 环境保护部南京环境科学研究所 A kind of artificial wet land system and operation method thereof
CN108558009A (en) * 2018-05-15 2018-09-21 湖南金旅环保股份有限公司 A kind of power-free integrated rural scattered domestic sewage treatment device
CN112811573A (en) * 2019-11-18 2021-05-18 贵州通用水务技术发展有限公司 Sewage treatment method, sewage treatment device and application
CN111285472A (en) * 2020-03-31 2020-06-16 无锡市太湖湖泊治理股份有限公司 Constructed wetland treatment system and application thereof
CN112456647A (en) * 2020-12-16 2021-03-09 中国科学院生态环境研究中心 Distributed treatment device that domestic sewage discharge characteristic suits

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Application publication date: 20110629