CN102161556A - Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment - Google Patents
Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment Download PDFInfo
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- CN102161556A CN102161556A CN 201110147644 CN201110147644A CN102161556A CN 102161556 A CN102161556 A CN 102161556A CN 201110147644 CN201110147644 CN 201110147644 CN 201110147644 A CN201110147644 A CN 201110147644A CN 102161556 A CN102161556 A CN 102161556A
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Abstract
The invention discloses a sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment. The technology of the invention contains two parts, namely the sewage chemical carbon fixation technology and sewage ecological treatment technology, wherein in the sewage chemical carbon fixation technology, chemical agents such as polymeric aluminum chloride, polymeric iron chloride and the like are added into a sewage treatment reactor to ensure that the carbon-containing organic matter in sewage can be adsorbed and fixed by the chemical agents, and the carbon-containing organic matter is precipitated and then removed; and the obtained sewage is then discharged into sewage ecological treatment facilities such as artificial wetlands, ecological ponds and the like, wherein one part of the residual organic matter in the sewage is absorbed and converted by ecological plants, another part is removed and degraded by the ecological treatment facilities, and the rest small part remains in the sewage. On one hand, the method can meet the sewage discharge standard and reuse water standard. On the other hand, compared with the traditional sewage biological treatment technology, most of the organic matters in the sewage are adsorbed and fixed by the chemical agents and absorbed and converted by the ecological plants, and the organic matters can not be oxidized and decomposed into carbon dioxide for emission by the traditional biological treatment technology, thus more than 50% of carbon emission can be reduced.
Description
Technical field
The invention belongs to sewage disposal, environmental protection technical field, be specifically related to solid carbon of chemistry and ecologic assemblage technical finesse sewage, handle the back sewage quality and reach emission standard, simultaneously traditional relatively dirty water living creature processing technique realizes subtracting the requirement of carbon more than 50%.
Background technology
Traditional cities and towns water system pattern is collected water, after the conveying by long distance promotes, carries out the concentrated removal of pollutent, utilizes or discharges.In the whole water system working cycle, expend a large amount of water conveying energy consumptions, simultaneously with the organism in the water by the power consumption aeration mode transfer CO to
2Discharging, the high-carbon emission type operation mode of traditional cities and towns water system has caused the self-examination of Chinese scholars.
In the world, economic and practical and subtract the developing direction that carbon technique has been the cities and towns water system, core is to carry out proven technique integrated in system.As the distributing of Japan on a small scale on the spot the sewage disposal qualified discharge can reduce the conveying energy consumption of long distance, the U.S., Germany etc. pay attention to the anaerobism consumption of mud, reclaim the organic matter in the sewage, be converted into the biogas energy that to collect utilization, Israel, the U.S. etc. pay attention to reclaimed wastewater reuse, sewage disposal is back to agricultural, industry etc. in a large number after to a certain degree, the nutritive substance in the realization sewage and two reuses of water.And the cities and towns water system emphasis of China is considered cities and towns drinking water safety guarantee, the pollution reduction of sewage and the environmental improvement of water body at present, also has long segment distance from international low carbon development direction.
The present China of China has built up 2010 of sewage work's town sewage plants, processing power 10,574 ten thousand m
3/ day, sewage work's power consumption degree in every year more than 80 hundred million, and be year trend of increase by 2.7%, cut down 7,740,000 tons of COD every year, and the CO2 total emission volumn reaches 1,058 ten thousand tons.Surpassing 90% sewage treatment process employing air blast aerobic aeration mode at present, is CO with the organic matter decomposition in the sewage
2Enter atmosphere, in recent years, country's paying much attention to urban sewage treatment, the pace of construction of cities and towns water supply and sewage facility is accelerated greatly, China's cities and towns water system technology has also obtained rapid progress, when introducing the external novel technique of digestion, constantly research and development are fit to the Technology of China's situation, are particularly obtaining more achievement aspect efficient technology and the technical research.From now on, research and develop the low carbon technique of water system of economic and practical type, and how systematically to carry out the integrated of low-carbon (LC) water system technology, will become the development trend that academia generally admits at space scale.
Summary of the invention
The present invention is directed to the mode that adopts the oxygen supply aeration in traditional town sewage treating processes, organism in the sewage is carried out oxygenolysis, generate the operation scheme of Carbon emission this high carbon emission in the atmosphere, invented a kind of new sewage low-carbon (LC) treatment process, by in sewage-treating reactor, adding chemical agent, organism in the sewage is adsorbed fixing, make the not oxidized decomposition of organism in the sewage and generate carbonic acid gas; The organism of Qu Chuing does not pass through the ecological wastewater processing facility again, and partial organic substances is transformed by plant absorbing, and residual organic substances is degraded by the Ecological Disposal facility, realizes that sewage disposal subtracts carbon more than 50%, meets the requirement of low-carbon ecological and sustainable development idea.
The present invention proposes solid carbon of chemistry and ecologic assemblage sewage low-carbon (LC) treatment process, and its technical scheme is as follows:
Sewage disposal technology is a target with water quality treatment and economy thereof generally at present, rather than carbon dioxide discharge-reduction is a target.Solid carbon of chemistry provided by the invention and ecologic assemblage sewage low-carbon (LC) treatment process, integrated chemical solid carbon and Ecological Disposal technology make it to reach the target of sewage disposal water quality and economy, and the while can be realized the reduction of discharging of carbonic acid gas.The present invention realizes that at present the double goal that subtracts carbon and water conditioning provides a kind of new for technical thought.
It is handled with ecological wastewater processing two portions by the solid carbon of sewage chemical and forms.
The solid carbon of described sewage chemical is handled, be meant when sewage treatment process, add chemical agents such as polymerize aluminum chloride, poly-ferric chloride, Tai-Ace S 150 or polyacrylamide at reactor, organism in the sewage is absorbed by chemical agent, and through the post precipitation removal, reduce the organism in the fixing sewage, carbonic acid gas is got rid of in the oxidized decomposition of organism when reducing the traditional wastewater biological treatment, reaches the sewage disposal low-carbon (LC) and moves.
Described ecological wastewater processing, be meant through the sewage after the chemical carbon-fixation-technology processing, by entering ecological wastewater processing facilities such as artificial swamp, ecological pond, remaining organism is absorbed by ecological vegetable on the one hand and is converted into plant in the sewage, on the other hand, the organism in the sewage is removed degraded by the Ecological Disposal facility.
Major advantage of the present invention is as follows:
1, low-carbon (LC): during traditional town sewage is handled, adopting the mode of oxygen supply aeration, the organism in the sewage is carried out oxygenolysis, generate Carbon emission in atmosphere, is a kind of treatment process of high carbon emission; The present invention is fixed on the most of carbonaceous organic material in the sewage in chemical sludge and the ecological vegetable, has realized the low-carbon emission of sewage disposal.
2, operation scheme is flexible: among the present invention, can change according to the sewage quality and the water yield, add the chemical agent of different sorts and content, tail water purifies through the Ecological Disposal facility again, and under the prerequisite that ensures effluent quality, operation scheme is flexible, is convenient to operation.
Embodiment
1, the solid carbon of sewage chemical is handled, when sewage treatment process, add chemical agents such as polymerize aluminum chloride, poly-ferric chloride, Tai-Ace S 150 or polyacrylamide at reactor, the organism in the sewage is absorbed by chemical agent, and remove through post precipitation, reduce the organism in the fixing sewage.This treating processes can be carried out in conventional wastewater coagulating sedimentation reaction tanks such as accelerator, grid flocculation.
2, ecological wastewater processing can be passed through conventional Ecological Disposal technology such as artificial swamp, ecological pond and realize.Sewage after will handling through chemical carbon-fixation-technology, by entering ecological wastewater processing facilities such as artificial swamp, ecological pond, remaining organism is absorbed by ecological vegetable on the one hand and is converted into plant in the sewage, and on the other hand, the organism in the sewage is removed degraded by the Ecological Disposal facility.Handle back sewage and can reach emission standard and reuse water standard;
3, the chemical sludge that produces after through the solid carbon of chemistry of sewage can adopt the mode of concentrated, mechanical dehydration and landfill to carry out treatment and disposal.
Main technical details:
Under the normal temperature:
Solid carbon treatment unit: the HRT=30-60min of sewage chemical, polymerize aluminum chloride, poly-ferric chloride etc. add dose: 10-30 mg/L;
Ecological wastewater processing device HRT=1-3d, hydraulic load are 0.1-0.5m
3/ m
2D.
Claims (1)
1. a chemistry is consolidated carbon and ecologic assemblage sewage low-carbon (LC) treatment process, it is characterized in that: described method is handled by the solid carbon of sewage chemical and is combined with ecological wastewater processing, and its step is as follows:
(1) the solid carbon of sewage chemical is handled
The sewage that need are handled adds chemical agent polymerize aluminum chloride, poly-ferric chloride, Tai-Ace S 150 or polyacrylamide earlier, organism in the sewage is absorbed by chemical agent, and through the post precipitation removal, reduce the organism in the fixing sewage, carbonic acid gas is got rid of in the oxidized decomposition of organism when reducing the traditional wastewater biological treatment, reaches the operation of sewage disposal low-carbon (LC); It is to handle in accelerator and these conventional wastewater coagulating sedimentation reaction tanks of grid flocculation that the solid carbon of described chemistry is handled;
(2) ecological wastewater processing: the sewage after will handling through the solid carbon of chemistry enter the ecological wastewater processing facility, allow in the sewage remaining organism be absorbed by ecological vegetable on the one hand and transform, and on the other hand, the organism in the sewage is removed degraded by the Ecological Disposal facility;
Present method realizes that the low-carbon (LC) of sewage is handled when carrying out the sewage disposal purification, the most of organism in the sewage is perhaps absorbed by ecological vegetable by fixedly postprecipitation removal of chemical agent, realizes subtracting carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110147644 CN102161556A (en) | 2011-06-02 | 2011-06-02 | Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110147644 CN102161556A (en) | 2011-06-02 | 2011-06-02 | Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment |
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| CN102161556A true CN102161556A (en) | 2011-08-24 |
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| CN 201110147644 Pending CN102161556A (en) | 2011-06-02 | 2011-06-02 | Sewage low-carbon treatment method combining chemical carbon fixation and ecological treatment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482746A (en) * | 2013-10-11 | 2014-01-01 | 常州大学 | Method for treating sewage by using coal mine wastes |
| CN104355487A (en) * | 2014-10-27 | 2015-02-18 | 无锡伊佩克科技有限公司 | Ecological sewage treatment method |
| CN104386877A (en) * | 2014-10-27 | 2015-03-04 | 无锡伊佩克科技有限公司 | Low-carbon sewage treatment method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863585A (en) * | 2010-04-29 | 2010-10-20 | 重庆大学 | Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area |
-
2011
- 2011-06-02 CN CN 201110147644 patent/CN102161556A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863585A (en) * | 2010-04-29 | 2010-10-20 | 重庆大学 | Physicochemical treatment and artificial wetland combined treatment system for sewage treatment of residential area |
Non-Patent Citations (1)
| Title |
|---|
| 《土木建筑与环境工程》 20100831 柴宏祥 等 "混凝沉淀-人工湿地"处理绿色建筑中水正交试验 第101-107页 1 第32卷, 第4期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482746A (en) * | 2013-10-11 | 2014-01-01 | 常州大学 | Method for treating sewage by using coal mine wastes |
| CN104355487A (en) * | 2014-10-27 | 2015-02-18 | 无锡伊佩克科技有限公司 | Ecological sewage treatment method |
| CN104386877A (en) * | 2014-10-27 | 2015-03-04 | 无锡伊佩克科技有限公司 | Low-carbon sewage treatment method |
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Application publication date: 20110824 |