CN101823795A - Technique for processing rural area non-point source pollution by controlling source (centralizing)-intercepting pollution (dredging)-reclaiming - Google Patents
Technique for processing rural area non-point source pollution by controlling source (centralizing)-intercepting pollution (dredging)-reclaiming Download PDFInfo
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- CN101823795A CN101823795A CN201010130931A CN201010130931A CN101823795A CN 101823795 A CN101823795 A CN 101823795A CN 201010130931 A CN201010130931 A CN 201010130931A CN 201010130931 A CN201010130931 A CN 201010130931A CN 101823795 A CN101823795 A CN 101823795A
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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 present invention provides a technique for processing rural area non-point source pollution by controlling source (centralizing)-intercepting pollution (dredging)-reclaiming, comprising centralizing, intercepting and dredging the waste water to an artificial wetland by using a plant buffer zone, a pond and a field channel, centralizing, dredging and intercepting the waste water by using the plant buffer zone, a methane tank, a natural channel, a field pit, a fishpond, the artificial wetland and organism thereof, converting the domestic waste water and the pig raising waste water into domestic methane and fertilizer by methane tank technique or converting the pollutant into the feed of the fish, and reclaiming the waste by planting commercial crop, such as reed and the like, in the artificial wetland. The technique has low investment cost and running cost and is easy to perform and manage.
Description
Technical field
The present invention relates to the rural area and pollute especially rural area non-point pollution processing technology field.
Background technology
The rural area non-point pollution is the important factor of Poyang Lake water pollution.Poyang Lake Area has been concentrated a large amount of farmlands, and unreasonable the using of chemical fertilizer causes a large amount of nitrogen phosphorus to produce leaching loss not by crop absorption by rainfall runoff in the agriculture production, thereby finally causes nitrogen, phosphorus to pollute to water body.The harm that Poyang Lake basin rural area non-point pollution is at present brought has caused the attention of government and environmental protection research unit, has developed different treatment technology in succession, and has set up various rural area non-point pollution treatment project.
At rural area non-point pollution characteristics, what adopt at present mainly is to utilize point-source pollution control treatment process.Because non-point pollution is wide to be difficult to judge, amount of contamination is difficult to determine, have the essence difference between disposal of pollutants main body and the point-source pollution, promptly discharge main body and change dispersive colony (even may be ten hundreds of nature persons) etc. into from legal person, tissue or group that scale is arranged, the result is that the point-source pollution control techniques can't adapt to the non-point pollution feature, thereby can't bring into play its effect.The rural area disorderly builds, it is more serious to huddle the situation of putting, disorderly toppling over, and only relies on country sewage pipe network improving pattern can't effectively improve rural area " dirty, unrest, poor " phenomenon; The height of country sewage pipe network improving construction investment simultaneously, country exists under the situation of disperseing to utilize the rural area transformation funds at present, and it can't be applied.Rural area non-point pollution such as loss of chemical fertilizer pollution, pesticidal contamination, livestock breeding industry pollution or the like are its chief components, are that the non-point source range of influence is polluted the most widely.And the agriculture production of China often relatively disperses, the picture point source is not polluted and is easy to concentrate the discharging management like that, therefore sixty-four dollar question is exactly how to control the source concerning the non-point source of rural area, how to utilize efficient, the low sewage disposal technology that drops into, Pollutant levels are controlled within the scope that environment can bear.
Summary of the invention
The present invention be directed to the difficult point problem that the non-point pollution of above-mentioned rural area is handled, " control source (concentrating)-section dirty (transporting)-resource utilization " combined treatment technology is provided.The sewage that the rural area non-point pollution produces is after this art breading, and water outlet can reach " urban wastewater treatment firm pollutant emission standard " (GB 18918-2002) one-level B standard (shown in the table one).
Table 1 urban wastewater treatment firm pollutant emission standard
| ??COD??(mg/L) | ??BOD??(mg/L) | ??NH4-N??(mg/L) | ??TN??(mg/L) | ??TP??(mg/L) |
| ??＜60 | ??＜10 | ??＜8(15) | ??＜20 | ??＜1.5 |
Technical scheme of the present invention is:
1. control source (concentrating): adopt plant buffer strip, pool, field irrigation canals and ditches to cut dirt in life in the countryside, factory effluent and river rising in Ningxia and flowing into central Shaanxi, the face of land adfluxion, transporting enters artificial swamp; Can adopt intercropping, interplanting and mixed seeding, improvement rotation system and learotation system are minimal tilled, no-tillage, and conservation technologies such as harvesting toothing are controlled from the source.
2. cut dirty (transporting): utilize plant buffer strip, methane-generating pit, natural irrigation canals and ditches, hole, field ditch, fish pond, artificial swamp and biology wherein, as grass, aquatic animals and plants etc., not only can concentrate, transporting life in the countryside, factory effluent, also can hold back simultaneously pollution wherein.
3. resource utilization: " methane-generating pit " technology is converted to biogas and fertilizer with the sanitary sewage and the waste water of raising pigs, and biogas can be used as domestic gas, and natural pond liquid can be used for the fertilizer of field-crop; Pollutent is become the foodstuffs of fish, changing waste into resources the most at last; Plant cash crop such as reed, calamus, Chinese celery, arrowhead, wild rice stem, lotus rhizome in the wetland, with changing waste into resources.
The formation of this combination process comprises:
1. the family expenses Methane-generating pit is connected with the vegetable plot, farmland, and the vegetable plot, farmland is connected with aerobic fish pond and artificial swamp respectively by field irrigation canals and ditches or design irrigation canals and ditches, and the aerobic fishing pool is connected with artificial swamp, and artificial swamp is connected with facultative lagoon;
2. the plant buffer strip is connected with aerobic fish pond and artificial swamp by the design irrigation canals and ditches, and aerobic fish pond is connected with artificial swamp, and artificial swamp is connected with facultative lagoon;
3. the pool is connected with aerobic fish pond by the design irrigation canals and ditches, and the fish pond is connected with artificial swamp, and artificial swamp is connected with facultative lagoon.
Beneficial effect of the present invention:
The present invention compared with prior art has the following advantages and the high-lighting effect:
Since the clear water pool with villager laundry, wash dish and concentrate, the easier collection of washes has solved the shortcoming that domestic sewage in rural areas by using can't be concentrated or concentrated cost is high.But it is different from common pool, present rural area (most of for stagnant water) again, joins with the bottom treatment system, utilize the natural irrigation canals and ditches in field with the field Waste Water Centralized in fishpond.
2. utilize the field irrigation canals and ditches not only can transporting but also can hold back pollutants in waste water, improved the overall process effect.
3. the fish pond no longer is the water after passive acceptance purifies, but becomes a part that purifies repair system, pollutent is become the foodstuff of fish; Artificial swamp no longer is the part as just wastewater treatment, but by planting economic crops changing waste into resources.
4. the one-time investment construction cost of technology is relatively low; Working cost is also low.
5. operation and management are simpler.
Description of drawings
Fig. 1 is " control source (concentrating)-section dirty (transporting)-resource utilization " of the present invention combination process mode chart.
Fig. 2 is a concrete CONTROL PROCESS schema of the present invention.
Embodiment
1. sanitary sewage, the waste water of raising pigs enter the household methane tank processing, and the sewage after the processing enters the vegetable plot, farmland, and vegetable plot, farmland sewage flows into aerobic fish pond and artificial swamp respectively by field irrigation canals and ditches or design irrigation canals and ditches, and the sewage in aerobic fish pond also can enter artificial swamp.
River rising in Ningxia and flowing into central Shaanxi, 2 face of land stream sewage enters the plant buffer strip, and the effusive sewage of plant buffer strip enters aerobic fish pond and artificial swamp respectively through the design irrigation canals and ditches, and the sewage in aerobic fish pond also can enter artificial swamp.
3. after the design irrigation canals and ditches enter aerobic fish pond and artificial swamp respectively, the sewage in aerobic fish pond enters artificial swamp to surface water from water channel sewage make up water.
4. agriculture production waste water enters aerobic fish pond and artificial swamp respectively by field irrigation canals and ditches or design irrigation canals and ditches, and the sewage in fish pond can enter artificial swamp.
5. the sewage of artificial swamp enters facultative lagoon at last, facultative lagoon water outlet qualified discharge.
Following table is to utilize this technology the non-point pollution of a certain rural area to be handled the result of demonstration project.
Table 2: the demonstration project result is handled in the non-point pollution of a certain rural area
| ? | The water yield (m 3/d) | ??pH | ??SS | ??COD??(mg/L) | ??BOD??(mg/L) | ??NH 4-N??(mg/L) | ?TN ?(mg/L) | ??TP??(mg/L) |
| Sanitary sewage | ??1.6 | ??6.5～8.5 | ? | ??100～400 | ??50～200 | ??20～100 | ?20～120 | ??1～10 |
| The waste water of raising pigs | ??0.4 * | ??7.5～8.5 | ??1500～ ??12000 | ??2000～ ??6000 | ??1000～ ??3000 | ??250～600 | ? | ??30～300 |
| Rainwash | ??18 | ??6～8 | ??500～1500 | ??50～1000 | ??10～200 | ??3～20 | ?3～30 | ??1～3 |
| Agriculture production waste water | ??30 | ??6～8 | ??500～1500 | ??30～160 | ? | ??5～20 | ?15～50 | ??0.18～5.50 |
| Water outlet | ??50 | ??6～8 | ??70～300 | ??12～100 | ??3～40 | ??3～15 | ?3～40 | ??0.08～0.3 |
Claims (3)
1. a control source (concentrating)-cut dirty (transporting)-recycling treatment rural area non-point pollution technology is characterized in that:
(1) enter the vegetable plot, farmland by the sewage after the household methane tank fermentative processing, the sewage in vegetable plot, farmland enters aerobic fish pond and artificial swamp respectively by field irrigation canals and ditches or design irrigation canals and ditches;
(2) stream sewage in river rising in Ningxia and flowing into central Shaanxi, the face of land enters the sewage after the plant buffer strip is handled, and enters aerobic fish pond and artificial swamp respectively by field irrigation canals and ditches or design irrigation canals and ditches;
(3) surface water enters aerobic fish pond and artificial swamp from water channel sewage make up water respectively after design irrigation canals and ditches;
(4) agriculture production waste water enters aerobic fish pond and artificial swamp by field irrigation canals and ditches or design irrigation canals and ditches;
(5) artificial swamp sewage enters facultative lagoon, facultative lagoon water outlet qualified discharge;
(6) adopt conservation technology.
2. control according to claim 1 source (concentrating)-cut dirty (transporting)-recycling treatment rural area non-point pollution technology is characterized in that: can plant cash crop such as reed, calamus, Chinese celery, wild rice stem, lotus rhizome in the described artificial swamp.
3. according to the described control of claim source (concentrating)-section dirty (transporting)-recycling treatment rural area non-point pollution technology, it is characterized in that: described conservation technology can be that intercropping, interplanting and mixed seeding are carried out in the farmland, improvement rotation system and learotation system are minimal tilled, no-tillage, harvesting toothing.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557269A (en) * | 2012-03-01 | 2012-07-11 | 复旦大学 | Landscape park type surface runoff treatment system |
| CN103508616A (en) * | 2012-06-26 | 2014-01-15 | 中国科学院南京地理与湖泊研究所 | Surface source pollution control technology based on point-line-surface stereo configuration |
| CN104071944A (en) * | 2014-05-08 | 2014-10-01 | 中国环境科学研究院 | Economic wetland system for ottelia acuminata macrobenthos for purifying agricultural runoff |
| CN106065654A (en) * | 2016-06-13 | 2016-11-02 | 信开水环境投资有限公司 | A kind of widespread pollution from the overuse of fertilizers and pesticides in rural area reduction and the association system of treated waste water for irrigation in agriculture |
| CN109607796A (en) * | 2018-11-27 | 2019-04-12 | 中国科学院华南植物园 | A kind of method of non-point pollution ecology prevention and control |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525208A (en) * | 2009-03-26 | 2009-09-09 | 钟显亮 | Rural wastewater and refuse intensive treatment and resource green engineering |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525208A (en) * | 2009-03-26 | 2009-09-09 | 钟显亮 | Rural wastewater and refuse intensive treatment and resource green engineering |
Non-Patent Citations (2)
| Title |
|---|
| 《江西化工》 20050301 谢晔 乐安河流域非点源污染防治对策 全文 1-3 , 2 * |
| 《节能》 20090515 刘艳 人工湿地技术应用于辽河下游污水处理的可行性研究 全文 1-3 , 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557269A (en) * | 2012-03-01 | 2012-07-11 | 复旦大学 | Landscape park type surface runoff treatment system |
| CN103508616A (en) * | 2012-06-26 | 2014-01-15 | 中国科学院南京地理与湖泊研究所 | Surface source pollution control technology based on point-line-surface stereo configuration |
| 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 |
| CN104071944A (en) * | 2014-05-08 | 2014-10-01 | 中国环境科学研究院 | Economic wetland system for ottelia acuminata macrobenthos for purifying agricultural runoff |
| CN106065654A (en) * | 2016-06-13 | 2016-11-02 | 信开水环境投资有限公司 | A kind of widespread pollution from the overuse of fertilizers and pesticides in rural area reduction and the association system of treated waste water for irrigation in agriculture |
| CN106065654B (en) * | 2016-06-13 | 2019-03-08 | 信开水环境投资有限公司 | A kind of association system of agricultural non-point source pollution reduction and treated waste water for irrigation in agriculture |
| CN109607796A (en) * | 2018-11-27 | 2019-04-12 | 中国科学院华南植物园 | A kind of method of non-point pollution ecology prevention and control |
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| CN101823795B (en) | 2012-08-01 |
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