CN101348308B - Novel town sewerage mixed treatment process - Google Patents
Novel town sewerage mixed treatment process Download PDFInfo
- Publication number
- CN101348308B CN101348308B CN2008100459661A CN200810045966A CN101348308B CN 101348308 B CN101348308 B CN 101348308B CN 2008100459661 A CN2008100459661 A CN 2008100459661A CN 200810045966 A CN200810045966 A CN 200810045966A CN 101348308 B CN101348308 B CN 101348308B
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- Prior art keywords
- sewage
- treatment
- waste water
- pond
- pool
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a novel process for mixing treatment of urban sewage. The process comprises the steps of collection, acidification treatment, anaerobic digestion treatment and facultative treatment of domestic sewage and aquiculture sewage after solid-liquid separation, as well as the construction of ecological circulation systems such as vegetable greenhouses and orchards; moreover, the process can effectively remove organics such as COD and BOD and heavy metals such as Cu<2+>, Pb<2+>and Zn<2+> in the sewage, and completely eliminates eutrophic ingredients in water so as to ensure that the sewage can meet the discharge standard. The novel process has the advantages of outstanding decontamination effect, energy conservation and consumption reduction, less investment, low operating cost, convenient and reliable operation, wide application range, no season limitation on operation and less land occupation; moreover, the novel process can be used for ecological treatment and comprehensive recycling of urban sewage, and can also be used specifically for the treatment of aquiculture wastewater in large-sized poultry and livestock farms.
Description
Technical field
The present invention relates to a kind of sewage treatment process, particularly relate to a kind of ecological circulation novel process market town life and aquaculture wastewater combination treatment.
Background technology
Along with improving constantly of China's level of urbanization; Whole nation samll cities and towns have reached nearly 50,000, the sewage of these samll cities and towns and not just directly discharging of process purifying treatment of the sewage of culturing the poultry generation, and sewage is through rainwash entering rivers and lakes; Cause severe overweights such as nitrogen in the water, phosphorus, sulphur, carbon; Cause body eutrophication, and these waste water have a large amount of bacteriums and germ, caused the severe contamination of water surrounding; Seriously influence ecotope, directly endangered the healthy of people.Domestic processing at present to such waste water, the one, adopt biological process, promptly adopt aerobic, anaerobism, the oxygen treatment system of holding concurrently, though that this treatment system has a load of processing is high, the characteristics that processing power is strong, shortcoming are that one-time investment is big; The 2nd, adopt artificial wet land system, promptly be transformed into by waterplant formations such as rubble ickings bed, mikrobe with the farmland of putting aside as useless or leave unused, depression, pool etc.Effluent stream through wetland filter, adsorb, biological action such as physical process such as displacement and mikrobe absorption, degraded, with and reach the purpose that purifies water.This system has less investment, and working cost is low, the characteristics that maintenance technology is easy, but floor space is big, and winter operation is restricted.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of clean effect, less investment, and operation is convenient, and floor space is little, the town sewerage combination treatment technology that do not receive season limit, can fully utilize.
Achieving the above object, the present invention has adopted following technical scheme:
1. sewage collecting
With town domestic sewage with after the aquaculture wastewater after the solid-liquid separation is collected, artificial screen cloth and mechanical grille are set with the sewage collecting pipe network, remove out thick solid sundries in the sewage at the tail end of its total sewage draining exit;
2. acidification
Sewage is flowed in the acidulated pool, after thorough mixing is even, stop 4h, big suspended substance in the deposition sewage is regulated concentration, and the C in the waste water, N, P, S ratio are more suitable for microorganism growth;
3. Anaerobic Digestion
Sewage in the acidulated pool is drained into methane-generating pit; The residence time is 48h, and the functional bacterium of inoculation in the waste water is because waste water is under the stirring action of a large amount of biogas of anaerobic treatment process output; Sewage and mud thorough mixing; Organic matter is adsorbed decomposition, and the biogas that produces is discharged via pneumatic tube, and collection acts as a fuel; The waste water that contains a small amount of light mud enters oxygen compatibility pool, and excess sludge is sent into the sludge drying pond;
4. the oxygen of holding concurrently is handled
In the foster pond of holding concurrently, add and to adsorb heavy metal Cu
2+, Pb
2+, Zn
2+Yeast and low temperature resistant bacterium; Circular flow 1～2d; Can remove the heavy metal in the water body effectively, the mud that sewage treatment process is produced carries out processed with being pumped in the sludge drying bed, and aerobic heap is carried out processing fertilizer behind the anaerobically fermenting behind the sludge drying;
5. build booth vegetable---the ecological orchard recycle system
In the downstream of holding concurrently foster pond; Make up booth vegetable---the ecological orchard recycle system by certain gradient; Can be used as the soilless cultivation that nutritive medium is realized booth vegetable through the waste water of rough handling, realize that the greenhouse gardening vegetables are innoxious, greenization, organise, improve the economic worth of agricultural-food; Waste water after the processing also can be used to irrigate ecological orchard; Improve the fruit product quality, and the mikrobe and the eutrophication factor in the current in flow through booth vegetable and ecological orchard are significantly reduced, the water-quality guideline of final effusive waste water reaches emission standard.
The functional bacterium of in methane-generating pit, dropping into can make sewage treatment effect more remarkable by separating the degradation function property bacterium that domestication obtains in active sludge and the Ruoergai soil;
The present invention makes full use of microorganism biological variety characteristic, with anaerobism, the oxygen system of holding concurrently, organically combine with ecologic planting, forms unique sewage treatment process, and its characteristics are following:
(1) having made full use of the natural drop in the Sichuan Basin, is unpoweredly to flow naturally on flow process, has made up anaerobic waste water, the oxygen of holding concurrently handles, and the town sewerage of booth vegetable, planting fruit trees mixes the ecological circulation system for handling;
(2) this technology working cost and one-time investment expense are lower than conventional waste water treatment process, and system's operational management is convenient, and is remarkable to N, P and organism and heavy metal removal effect, and town sewerage is through after the Anaerobic Digestion, and COD reduces 70% in the sewage, BOD
5Reduce 80%, again through booth vegetable---the fruit implant system is handled, and makes COD and BOD in the sewage
5Reduce 95%;
(3) to the high characteristics of organic concentration in the town sewerage, add degradation function property microbe groups and low temperature fermentation microbe groups in the Anaerobic Digestion technology, improve town sewerage processing efficiency and range of application, operation does not receive season limit;
(4) the efficient absorption of inoculation heavy metal Cu
2+, Pb
2+, Zn
2+Yeast, and low temperature resistant bacterium forms microbial film in oxygen compatibility pool, eliminate the potentially contaminated of heavy metal in the water body;
(5) after the aerobic quick fermentation of anaerobic activated sludge, reusable edible is as the farmland fertilizer.
In sum, the present invention be remarkable, the energy-conservation province of a kind of scrubbing effect consumption, less investment, working cost low, do not receive season limit, can Ecological Disposal and the sewage treatment process that utilizes of circulation comprehensive, be widely used in the processing of town sewerage.
Embodiment
Below come further to set forth the present invention through embodiment.
Embodiment 1
Process step of the present invention is following:
1. sewage collecting
With the sewage collecting pipe network with town domestic sewage with after the aquaculture wastewater after the solid-liquid separation is collected; Tail end at its total sewage draining exit just is being provided with artificial screen cloth and mechanical grille; Remove out thick solid sundries in the sewage, frame trough adopts brick mix structure, the artificial screen cloth of built-in secondary 40 orders;
2. acidification
Sewage is flowed in the acidulated pool, after thorough mixing is even, stop 4h, big suspended substance in the deposition sewage is regulated concentration as required, and acidulated pool adopts brick mix structure, the scale design of pressing actual needs;
3. Anaerobic Digestion
Sewage in the acidulated pool is drained into methane-generating pit, and waste water is at the stirring action of a large amount of biogas of Anaerobic processes output, sewage and mud thorough mixing, and organic matter is adsorbed decomposition, and the residence time is 48h, and the biogas that produces is discharged via pneumatic tube, and collection acts as a fuel; The waste water that contains a small amount of light mud enters oxygen compatibility pool; Excess sludge is sent into the sludge drying pond; In methane-generating pit, drop into from active sludge and Ruoergai soil and separate the degradation function property bacterium of taming, make wastewater treatment efficiency better, methane-generating pit is pressed the scale design of actual needs;
4. the oxygen of holding concurrently is handled
The methane-generating pit water outlet is supported the pond from flowing to hold concurrently, and in the foster pond of holding concurrently, adds and can adsorb heavy metal Cu
2+, Pb
2+, Zn
2+Yeast and low temperature resistant bacterium, circular flow 1-2d can remove the heavy metal in the water body effectively, and the excess sludge of collecting is sent into the sludge drying pond; The mud that sewage treatment process is produced carries out processed with being pumped in the sludge drying bed, and deviate from return of waste water and go into acidulated pool, aerobic composting fermentation behind the sludge drying, and as the orchard, the biological organic fertilizer in vegetable field or farmland; Mummifying pool adopts width of cloth sedimentation tank, adopts brick mix structure, cubic capacity 30m
3
5. booth vegetable---the ecological orchard recycle system
In the downstream of holding concurrently foster pond; Make up booth vegetable---the ecological orchard recycle system by certain gradient; Can be used as the soilless culture that nutritive medium is realized booth vegetable through the waste water of rough handling, realize that the greenhouse gardening vegetables are innoxious, greenization, organise, improve the economic worth of agricultural-food; Waste water after the processing also can be used to irrigate ecological orchard, improves the fruit product quality.And the mikrobe and the eutrophication factor in the current in flow through booth vegetable and ecological orchard are significantly reduced, the water-quality guideline of final effusive waste water reaches the one-level A standard among the GB18918-2002.Also can in sewage, add an amount of nutritive substance targetedly, make the nutrient in the sewage abundanter, fully satisfy plant nutrient demand according to the kind of the fruit and vegetables of planting.
The present invention is not limited to the concentrated combination treatment of above-mentioned sanitary wastewater and breeding wastewater, is equally applicable to large-scale livestock and poultry farm special disposal breeding wastewater.
Claims (1)
1. town sewerage combination treatment technology is characterized in that its process step is following:
1. sewage collecting
With town domestic sewage with after the aquaculture wastewater after the solid-liquid separation is collected, artificial screen cloth and mechanical grille are set with the sewage collecting pipe network, remove out thick solid sundries in the sewage at the tail end of its total sewage draining exit;
2. acidification
Sewage is flowed in the acidulated pool, after thorough mixing is even, stop 4h, big suspended substance in the deposition sewage is regulated concentration of wastewater;
3. Anaerobic Digestion
Sewage in the acidulated pool is drained into methane-generating pit, the functional bacterium of inoculation in waste water, the residence time is 48h, and the collecting methane that produces acts as a fuel, and the waste water that contains a small amount of light mud enters oxygen compatibility pool, and excess sludge is sent into the sludge drying pond;
4. the oxygen of holding concurrently is handled
In the foster pond of holding concurrently, add and to adsorb heavy metal Cu
2+, Pb
2+, Zn
2+Yeast and low temperature resistant bacterium, circular flow 1-2d, mud send into the sludge drying pond;
5. build vegetables, the orchard ecology recycle system
In the downstream of hold concurrently supporting the pond, set up booth vegetable---the ecological orchard recycle system, utilize from oxygen compatibility pool effusive waste water as the organic nutrient solution for cultivating of fruit and vegetables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100459661A CN101348308B (en) | 2008-08-27 | 2008-08-27 | Novel town sewerage mixed treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100459661A CN101348308B (en) | 2008-08-27 | 2008-08-27 | Novel town sewerage mixed treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348308A CN101348308A (en) | 2009-01-21 |
| CN101348308B true CN101348308B (en) | 2012-10-31 |
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ID=40267307
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100459661A Expired - Fee Related CN101348308B (en) | 2008-08-27 | 2008-08-27 | Novel town sewerage mixed treatment process |
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| CN (1) | CN101348308B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508616B (en) * | 2012-06-26 | 2016-04-13 | 中国科学院南京地理与湖泊研究所 | Based on the non-point source pollution control technique of point-line-face stereoscopic configurations |
| CN105036479A (en) * | 2015-08-05 | 2015-11-11 | 枞阳县宇瑞环保科技有限公司 | Method for treating medical waste water |
| CN113480108A (en) * | 2021-08-16 | 2021-10-08 | 杭州霖波环保科技有限公司 | Domestic sewage comprehensive treatment system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328972A (en) * | 2001-07-27 | 2002-01-02 | 蒲重良 | Composite method for treating industrial and domestic waste water as resource and its equipment |
| US20050040107A1 (en) * | 2003-08-20 | 2005-02-24 | Kasparian Kaspar A. | Single vessel multi-zone wastewater bio-treatment system |
| CN101050026A (en) * | 2007-04-17 | 2007-10-10 | 北京市环境保护科学研究院 | Deepness denitrogenation method for treating organic wastewater in high concentration |
-
2008
- 2008-08-27 CN CN2008100459661A patent/CN101348308B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328972A (en) * | 2001-07-27 | 2002-01-02 | 蒲重良 | Composite method for treating industrial and domestic waste water as resource and its equipment |
| US20050040107A1 (en) * | 2003-08-20 | 2005-02-24 | Kasparian Kaspar A. | Single vessel multi-zone wastewater bio-treatment system |
| CN101050026A (en) * | 2007-04-17 | 2007-10-10 | 北京市环境保护科学研究院 | Deepness denitrogenation method for treating organic wastewater in high concentration |
Non-Patent Citations (3)
| Title |
|---|
| 住宅小区无动力地埋式生活污水一体化处理装置;李跃华等;《水处理技术》;20060630;第32卷(第6期);第88-90页 * |
| 李海霞等.生活污水的厌氧—好氧处理(工艺组合)和高效菌的应用.《水科学与工程技术》.2005,第48-50页. * |
| 李跃华等.住宅小区无动力地埋式生活污水一体化处理装置.《水处理技术》.2006,第32卷(第6期),第88-90页. |
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| Publication number | Publication date |
|---|---|
| CN101348308A (en) | 2009-01-21 |
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Granted publication date: 20121031 Termination date: 20160827 |