CN101913702A - Treatment system and treatment method for rural domestic sewage - Google Patents
Treatment system and treatment method for rural domestic sewage Download PDFInfo
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- CN101913702A CN101913702A CN2010102548582A CN201010254858A CN101913702A CN 101913702 A CN101913702 A CN 101913702A CN 2010102548582 A CN2010102548582 A CN 2010102548582A CN 201010254858 A CN201010254858 A CN 201010254858A CN 101913702 A CN101913702 A CN 101913702A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a treatment system and a treatment method for rural domestic sewage, and belongs to the field of domestic sewage treatment. According to the treatment system, a crop is planted in a greenhouse, the middle part of the greenhouse is provided with a bioreactor with high load performance, the bioreactor is connected with a gas collecting device, and the top of the greenhouse is provided with a gas release device which is communicated with the gas collecting device. The method comprises the following steps of: designing the greenhouse; arranging the bioreactor with high load performance on the middle part of the greenhouse, and providing the gas collecting device communicated with the reactor; collecting domestic sewage, and treating the pretreated domestic sewage by using the high load bioreactor; collecting carbon dioxide generated by aerobic biochemical reaction to the gas collecting device which is connected with the gas release device arranged at the top of the greenhouse; and discharging the treated domestic sewage for recycling from the reactor. The system and the method make full use of rural natural condition and structural layout, and realize the requirements of energy conservation, emission reduction and low carbon at the same time of treating the rural domestic sewage under the low-temperature condition.
Description
Technical field
The present invention relates to a kind of domestic sewage processing system and treatment process in the water treatment field, particularly a kind of domestic sewage in rural areas by using treatment system.
Background technology
Uncontrolled along with the sharp increase of the development of world industrial economy, population and human being's production mode of life; world climate faces more and more serious problem; CO2 emissions is increasing; earth's ozone layer is just suffering unprecedented crisis; the calamitous climate change in the whole world occurs repeatedly; serious harm is to existent environment of people and healthy and safe, even human rapid growth of once be proud ofing or expansible GDP also have a greatly reduced quality because of environmental pollution, climate change.
" carbon remittance " is meant process, activity, the mechanism of removing carbonic acid gas from air.Be meant mainly that forest absorbs and what of storing carbon dioxide, or perhaps forest absorbs and the ability of storing carbon dioxide.The Kyoto Protocol of United Nations Framework Convention on Climate Change (UNFCCC) was reached in the UNFCCC conference of contracting party third session that kyoto, Japan is held in 1997.It comprises the required legally obligation of bearing except UNFCCC.The various countries that comprise in the protocol accessories B (majority state belongs to Oragnization for Economic Co-operation and Development and the country that switches to a market economy) agree to reduce the quantity discharged that the people is 6 kinds of greenhouse gases (carbonic acid gas, methane, the inferior carbon of oxidation, hydrogen fluorine carbide, perfluoro-carbon and a sulfur hexafluoride), and quantity discharged is at least than nineteen ninety level low 5% in first commitment period in 2008～2012 years.
Sanitary sewage is the sewage that produces in people's daily life, mainly contains people's movement and life waste material.Sanitary sewage comprises lavatory draining, kitchen washing draining and shower, laundry draining.Its composition depends primarily on people's standard of living and custom, with weather condition substantial connection is arranged also.The feature of sanitary sewage is that water quality is more stable, muddy, dark, has stench, is slight alkalinity, does not generally contain Toxic matter, but often contains the thing nutritive substance, and contain a large amount of bacteriums (comprising pathogenic bacteria), virus and parasitic ovum.
It is a great problem that the ambient water process field faces at present that low-temperature sewage is handled.In China winter, the most of area and the southern some areas in the north, because temperature plays decisive role to distribution of growth, breeding, metabolism and biotic population and the population quantity of biont, directly affects the height of sewage treating efficiency in winter.Pertinent data shows that when envrionment temperature was lower than 10 ℃, the allogenic material metabolism of most mesophilic microorganisms was subjected to serious restriction.Since during low temperature in the sewage diffusion and the sedimentation of organic substance slack-off, cause thread fungus raised growth in the sewage, produce sludge bulking; Under the cold condition, Gas Solubility becomes big in the water, causes the mud come-up.Thereby the importance of low-temperature sewage processing research is very outstanding.
Biomembrance process is to utilize attached to the biology on the filler a kind of technology that water body purifies, and is developed rapidly in recent years and improves.Biomembrance process has remedied a lot of deficiencies of activated sludge process aspect the water at low temperature processing, its good stability, bear organic loading and the ballistic ability of hydraulic load is strong, no sludge bulking, do not have to reflux, to organic clearance height, advantage such as the volume of reactor is little, sewage work's floor space is little.
The rural domestic sewage treating device that water jar is built mechanism's propositions such as development in science and technology company limited is built in Shanghai Municipal Engineering Design Research Institute, Shanghai, body bottom, pond is the active sludge district, top is the light filter material district, water inlet pipe is communicated with the active sludge district of body bottom, pond, and rising pipe is located at top, filtrate district.The composite anaerobic biologic treating technique combines anaerobic activated sludge method and anaerobe embrane method, the contaminant removal efficiency height, and effluent quality is good, and little, the non-power consumption of floor space satisfies domestic sewage in rural areas by using and handles needs.But also having certain problem, at first is not in conjunction with the natural condition and the watering condition of Rural areas, and the water reduction of discharging is combined with the water resources recycle; In addition, the CH that anaerobic reaction is not produced
4The CO that gas and aerobic reaction produce
2Isothermal chamber gas is effectively collected, reuse, can not satisfy the low-carbon (LC) requirement that proposes in the face of Global climate change.
Summary of the invention
In order to solve the deficiency of existing domestic sewage in rural areas by using treatment condition, reach the low-carbon (LC) requirement simultaneously, the purpose of this invention is to provide a kind of domestic sewage in rural areas by using treatment system and treatment process, with bio-reactor with high loading performance is core, utilizes the purification process of plastic greenhouse to the reactor insulation, and it can effectively be handled domestic sewage in rural areas by using, can energy efficient, reach water reduction of discharging, carbon emission reduction, increase gas concentration lwevel in the booth simultaneously, realize the effect of increasing crop yield.
The technical solution adopted for the present invention to solve the technical problems is: a kind of domestic sewage in rural areas by using treatment system, comprise booth, the greenhouse gardening crop, the bio-reactor with high loading performance is installed at the middle part, the bio-reactor reactor is connected with gas collector, establish gas release device at the booth top, communicate with gas collector.
A kind of treatment method for rural sewage comprises the steps: that (a) is at rural area design 1800～3500m
3The booth of volume is used for the plantation farm crop; (b) bio-reactor with high loading performance is installed at booth middle part, cold condition is down during operation in the winter time when reactor, and booth plays insulation effect to reactor, is provided with the gas collector that is communicated with reactor simultaneously; (c) compile sanitary sewage, after pre-treatment, it is handled with the high loading bio-reactor; (d) carbonic acid gas that reaction produces through aerobic biochemical is collected by gas collector, this device connects the gas release device that ceiling portion lays, release of carbon dioxide in proportion, improve the required concentration of carbon dioxide of photosynthesis of plant, be foundation with " carbon remittance " simultaneously, realize the low-carbon (LC) processing; (e) reuse is carried out in treated reactor water outlet.
Beneficial effect of the present invention: the invention provides a kind of domestic sewage in rural areas by using treatment system and treatment process, reactor is incubated, fundamentally solved problem to the reactor insulation energy consumption that causes with plastic greenhouse; With gas collector carbonic acid gas is collected, made full use of " carbon remittance ", reduce emission amount of carbon dioxide, realize the low-carbon (LC) processing; The carbonic acid gas of collecting 1 is discharged in the plastic greenhouse in proportion, carbonic acid gas is carried out bio-absorbable by photosynthesis of plants; By improving concentration of carbon dioxide in the booth, improve the efficient of photosynthesis of plant, realize increasing the beneficial effect of output; Handled sanitary sewage can carry out reuse, realizes the recycle of rural area water resources, reaches the effect that water reduces discharging.The present invention has made full use of the natural condition and the topology layout in rural area, when domestic sewage in rural areas by using is handled under having solved cold condition, has also realized the requirement of energy-saving and emission-reduction and low-carbon (LC).
Description of drawings
Fig. 1 is a domestic sewage in rural areas by using treatment system structural representation provided by the invention; Fig. 2 is the schematic flow sheet of treatment method for rural sewage provided by the invention.
Embodiment
The present invention will be further described below in conjunction with specific embodiment and accompanying drawing: domestic sewage in rural areas by using treatment system provided by the invention and treatment process, its step are (a) design 1800～3500m
3Booth 1 is for plantation farm crop 2 usefulness; (b) bio-reactor 3 is installed at booth middle part, cold condition is down during operation in the winter time when reactor, and 1 pair of reactor 3 of booth plays insulation effect, is provided with the gas collector 4 that is communicated with reactor simultaneously; (c) sanitary sewage compiles, and with bio-reactor 3 it is handled; (d) carbonic acid gas that reaction produces through aerobic biochemical is collected by gas collector 4, this device connects the gas release device 5 that ceiling portion lays, release of carbon dioxide in proportion, carry out reuse to improve the treated sanitary sewage of the required concentration of carbon dioxide of photosynthesis of plant (e) by the reactor water outlet, realize the circulation of entire treatment process.The system architecture synoptic diagram is seen Fig. 1, and the schematic flow sheet of treatment process is seen Fig. 2.
Bio-reactor, optional BAF, MBBR (MBBR) etc., day output will be a reference design with local sanitary sewage day quantity discharged.
The plastic greenhouse volume will determine that studies show that carbon dioxide content doubles, crop yield on average increases by 33% according to producing amount of carbon dioxide and Carbon Dioxide in Air content bio-reactor biochemical reaction day.
The selection of farm crop will be in conjunction with the ability of crop absorption carbonic acid gas, as far as possible with C
4Light such as plant are main with the strong crop of effect, as composite family, three-coloured amaranth etc.
Gas collector, to adjustment be installed according to concrete water quality, sewage for comparatively even, the no toxic and harmful generation of water quality, can directly collect carbonic acid gas, for the sewage that may produce foul gas, to before carbon dioxide collection, add biofiltration device, guarantee the purity and the purification of carbonic acid gas, prevent that obnoxious flavour from entering atmosphere.
The present invention is guiding with energy-saving and emission-reduction, and the lower Rural areas of temperature because sanitary sewage continues discharging, and can't reach timely purification, and general technology need increase attemperator in the winter time, and energy consumption is huge, and treatment effect is bad; Select for use plastic greenhouse that technology is incubated, provide good operational conditions for reactor by sun power; Advantages such as this has certain wastewater treatment efficiency the high loading bio-reactor under cold condition, little in conjunction with its floor space, that the residence time is short, hydraulic load is big are first-selected.
Embodiment 1 domestic sewage in rural areas by using treatment system and treatment process basic structure and flow process are as mentioned above.Design BAF day output 2000m
3/ d in COD clearance 80%, domestic sewage in rural areas by using COD mean concns 300mg/L, removes COD amount every day and is: 2000m
3/ d * 0.3kg/m
3* 80%=480kgCOD/d converts to COD with glucose wastewater, the glucose ≈ of unit 1.07 COD of unit, and the suitable biochemical reaction of then above processing consumes 449kg glucose, below is the generation relation of glucose and carbonic acid gas: C
6H
12O
6+ 6O
2=6CO
2+ 6H
2The O then glucose of above-mentioned amount is equivalent to generate the carbonic acid gas of 660kg, considers that organism exists protein and other organic compositions in the domestic sewage in rural areas by using, to generate amount of carbon dioxide 600～700kg.
The Carbon Dioxide in Air average content is 320mg/L, and to improve one times of gas concentration lwevel, the amount of carbon dioxide that per unit volume is to be discharged is 320mg/L, and then designing the booth volume is 1870～2190m
3, round with booth design volume 2000m
3Meter.
Aerating apparatus is selected, and the BAF of selection is in steam-water ratio 20: 1, day handles 2000t sewage, and then an aeration rate is 100t day, and promptly aeration rate is 69.4kg/min.
Set up this domestic sewage processing system in the rural area, the steps include: that (1) carry out biofilm with domestic sewage in rural areas by using to BAF light ceramic filler; (2) treat that the filler biofilm is stable after, compile local sanitary sewage, handle by BAF; (3) biochemical reaction carbonic acid gas that produces and the air mixed that blasts enters gas collector; (4) plant three-coloured amaranth in booth, the gas of collection is discharged in the plastic greenhouse in proportion by gas release device, improves gas concentration lwevel, promotes plant light and effect, improves output; (5) sewage of handling through BAF returns the residential area by reflux line, implements reuse measures such as field irrigation, flushing.
By above step process, sanitary sewage COD clearance 70%～80%, carbon dioxide discharge-reduction 60%～70%, water reduces discharging 60%～65%, increasing crop yield 20%～25%.
The Carbon Dioxide in Air average content is 320mg/L, and to improve one times of gas concentration lwevel, the amount of carbon dioxide that per unit volume is to be discharged is 320mg/L, and then designing the booth volume is 2810～3440m
3, round with booth design volume 3000m
3Meter.
Aerating apparatus is selected, and selects in steam-water ratio 20: 1, day handles 3000t sewage, and then an aeration rate is 150t day, and promptly aeration rate is 104.2kg/min.
Set up this domestic sewage processing system in the rural area, the steps include: (1) with domestic sewage in rural areas by using to the rigid filled biofilm of carrying out of MBBR polyethylene; (2) treat that the filler biofilm is stable after, compile local sanitary sewage, handle by MBBR; (3) biochemical reaction carbonic acid gas that produces and the air mixed that blasts enters gas collector; (4) plant tomato in booth, the gas of collection is discharged in the plastic greenhouse in proportion by gas release device, improves gas concentration lwevel, promotes plant light and effect, improves output; (5) sewage of handling through MBBR carries out reuse, implements reuse measures such as the irrigation of booth plant, flushing.
By above step process, sanitary sewage COD clearance 75%～85%, carbon dioxide discharge-reduction 65%～70%, water reduces discharging 60%～65%, increasing crop yield 25%～30%.
Claims (3)
1. a domestic sewage in rural areas by using treatment system comprises booth, it is characterized in that the greenhouse gardening crop, the bio-reactor with high loading performance is installed at the middle part, the bio-reactor reactor is connected with gas collector, establishes gas release device at the booth top, communicates with gas collector.
2. domestic sewage in rural areas by using treatment system according to claim 1, the bio-reactor that it is characterized in that having the high loading performance is BAF or MBBR.
3. treatment method for rural sewage, it comprises the steps:
(a) at rural area design 1800～3500m
3Booth, use for the plantation farm crop;
(b) at the booth middle part bio-reactor with high loading performance is installed, reactor is communicated with gas collector, and when moving under the reactor cold condition, booth is incubated reactor;
(c) compile domestic sewage in rural areas by using, after pre-treatment, it is handled with the high loading bio-reactor;
(d) carbon dioxide collection that produces through aerobic biochemical reaction is gone into gas collector, and this device connects the gas release device that ceiling portion lays, and release of carbon dioxide in proportion is to improve the required concentration of carbon dioxide of photosynthesis of plant;
(e) treated sanitary sewage carries out reuse by the reactor water outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102548582A CN101913702A (en) | 2010-08-16 | 2010-08-16 | Treatment system and treatment method for rural domestic sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102548582A CN101913702A (en) | 2010-08-16 | 2010-08-16 | Treatment system and treatment method for rural domestic sewage |
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| CN101913702A true CN101913702A (en) | 2010-12-15 |
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| CN2010102548582A Pending CN101913702A (en) | 2010-08-16 | 2010-08-16 | Treatment system and treatment method for rural domestic sewage |
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| CN (1) | CN101913702A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897981A (en) * | 2012-10-31 | 2013-01-30 | 江苏商达水务有限公司 | Rural domestic waste water treatment recycling process and device |
| CN113185068A (en) * | 2021-06-10 | 2021-07-30 | 桂林理工大学 | Combined type organic wastewater treatment system |
| CN117035514A (en) * | 2023-08-08 | 2023-11-10 | 上海东振环保工程技术有限公司 | Comprehensive sewage treatment management and control system based on cloud platform |
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| CN1837084A (en) * | 2006-04-25 | 2006-09-27 | 河北农业大学 | Artificial ecological sewage purifying and treating device |
| EP1726570A1 (en) * | 2005-05-25 | 2006-11-29 | Michel Drevet | Recipient, installation and process for the treatment of liquid effluents by evaporation and degradation of the organic load |
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2010
- 2010-08-16 CN CN2010102548582A patent/CN101913702A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1726570A1 (en) * | 2005-05-25 | 2006-11-29 | Michel Drevet | Recipient, installation and process for the treatment of liquid effluents by evaporation and degradation of the organic load |
| CN1837084A (en) * | 2006-04-25 | 2006-09-27 | 河北农业大学 | Artificial ecological sewage purifying and treating device |
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| 《科技成果（应用技术类成果）》 20090101 兰州交通大学 高寒地区生活污水处理回用生态大棚 第1-2页 1-3 , * |
| 兰州交通大学: "高寒地区生活污水处理回用生态大棚", 《科技成果（应用技术类成果）》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897981A (en) * | 2012-10-31 | 2013-01-30 | 江苏商达水务有限公司 | Rural domestic waste water treatment recycling process and device |
| CN102897981B (en) * | 2012-10-31 | 2014-05-07 | 江苏商达水务有限公司 | Rural domestic waste water treatment recycling process and device |
| CN113185068A (en) * | 2021-06-10 | 2021-07-30 | 桂林理工大学 | Combined type organic wastewater treatment system |
| CN117035514A (en) * | 2023-08-08 | 2023-11-10 | 上海东振环保工程技术有限公司 | Comprehensive sewage treatment management and control system based on cloud platform |
| CN117035514B (en) * | 2023-08-08 | 2024-04-12 | 上海东振环保工程技术有限公司 | Comprehensive sewage treatment management and control system based on cloud platform |
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Application publication date: 20101215 |