CN204939093U - A kind of artificial wet land treating system being applicable to karst water pollution of area source - Google Patents
A kind of artificial wet land treating system being applicable to karst water pollution of area source Download PDFInfo
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- CN204939093U CN204939093U CN201520572585.4U CN201520572585U CN204939093U CN 204939093 U CN204939093 U CN 204939093U CN 201520572585 U CN201520572585 U CN 201520572585U CN 204939093 U CN204939093 U CN 204939093U
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Abstract
The utility model discloses a kind of artificial wet land treating system being applicable to karst water pollution of area source, it is characterized in that it comprises water collecting basin, artificial swamp and swallow hole, the sewage flowing through karst small watershed flows into swallow hole successively behind described water collecting basin, artificial swamp and waterways.The utility model, according to practical situation such as local topography and geomorphology and charge for remittance conditions, designs a kind of karst water pollution of area source surface current artificial wetland treatment system.Flow through the water after artificial wetland treatment, leading indicator majority can reach national Drinking Water quality standard, 2 class standards or 3 class groundwater quality standards, and water quality has had great improvement.The clearance that the clearance of pollutent can reach 35.62% ~ 92.97%, TP can reach 92.97%, very remarkable to the treatment effect of agriculture ground-level source polluted water, have construction cost low, be applicable to the features such as plateau climate, easily popularization.
Description
Technical field
The present invention relates to artificial wet land treating system.
Background technology
The southern 8 provinces and regions extensive development distribution In Carbonate Rock stratum such as Guizhou, Guangxi, Yunnan, Hunan, Hubei, Sichuan, Chongqing, Jiangxi, Guangdong, area about 800,000 square kilometres, distribution 3620 Karst Groundwater Systems, compose and have deposited 1806 × 10
8m
3/ a Karst Water Resource.The typical karst area such as Guizhou, Guangxi (as Guizhou) karst water accounts for 80% of gross amount of water resources, south karstic ground water provides life for 69 cities about 5,000 ten thousand city resident and more than 8,000 ten thousand people in the countryside, produces and ecotope water conservation, plays great function to Sustainable Socioeconomic Development and Ecological Civilization Construction.But a large amount of investigation results and data show, along with Development of Urbanization, land use type constantly change and the impact of the factor such as industrial and agricultural production, no matter karst region is superficial part epikarst water or Deep karst water etc., all receives the pollution that degree is different, and pollution is on the rise.Source of pollution, except the non-pollution of area source such as industrial production, urban sewage discharge or rubbish, also have the pollution of area source such as agricultural (fertilising, spraying pesticide), metropolitan district or Residential areas surface runoff; Survey data shows, the pollution that southern china karst region agricultural area source has produced considerably beyond non-face source to the karst water produced pollution.Southern china karst region water resources is natively very short, and the pollution of karst water makes shortage of water resources make the matter worse, and Sustainable Socioeconomic Development and Ecological Civilization Construction are subject to very big restriction, and the control of Karst groundwater pollution is all the more urgent.
At present, the main sewage work that adopts of southern china Karst groundwater pollution control focuses on the methods such as municipal effluent, municipal refuse disposal area leachate, urban residents' sanitary sewage, and object drains into environment (karst water) after allowing waste water after treatment reach certain water quality standard.Due to agricultural area source to the karst water produced pollution considerably beyond non-pollution of area source, above-mentioned sewage water treatment method to seem an utterly inadequate amount for widely distributed karst water Ides On Prevention And Control of Regional Pollution.Utilize the achievement in research of artificial wetland treatment agricultural area source sewage many, but then few for the research of karst region agricultural area source Man-made wetland process, and the example of application of result is less seen.Therefore, be badly in need of a kind of simple and easy, efficient, with low cost, be easy to promote the measure of karst water Ides On Prevention And Control of Regional Pollution.
Summary of the invention
The invention provides a kind of artificial wet land treating system being applicable to karst water pollution of area source, solve a karst region agricultural area source water pollutions difficult problem, to overcome prior art drawback to utilize this artificial wet land system.
For realizing the object of the invention, this artificial wet land treating system being applicable to karst water pollution of area source is characterized in that it comprises water collecting basin, artificial swamp and swallow hole, and the sewage flowing through karst small watershed flows into swallow hole successively behind described water collecting basin, artificial swamp and waterways.
The technical progress that the present invention obtains: the present invention, according to practical situation such as topography and geomorphology and charge for remittance conditions, designs a kind of karst water pollution of area source surface current artificial wetland treatment system.Flow through the water after artificial wetland treatment, leading indicator majority can reach national Drinking Water quality standard, 2 class standards or 3 class groundwater quality standards, and water quality has had great improvement.The clearance that the clearance of pollutent can reach 35.62% ~ 92.97%, TP can reach 92.97%, very remarkable to the treatment effect of agriculture ground-level source polluted water, have construction cost low, be applicable to the features such as plateau climate, easily popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is artificial swamp pollutants removal rate schematic diagram.
Embodiment
The present invention is for the Guizhou Province of plateau climate, according to practical situation such as local topography and geomorphology and charge for remittance conditions, design a kind of artificial wet land treating system of karst water pollution of area source as shown in Figure 1, in the miniature small watershed of this area's karst, after doab precipitation leakage leaching soil, be pooled to the water collecting basin at low-lying place, then through artificial swamp, objectionable constituent generation in sewage adsorbed and after precipitin reaction, flow into rock pin swallow hole finally by waterways.This rock pin swallow hole is connected with subterranean stream, through rock pin swallow hole flow into surface water enter subterranean stream, from away from 3 kilometers and physical features Geng Dimou village flow out with the form of karst big spring.
Easy manual's wetland of the present invention is to the processing power of agricultural area source sewage:
1, to the initial stage processing power of agricultural area source sewage
After the present invention built up in April, 2013, in mid-June, 2013, after water collecting basin have accumulated abundant water, starting to discharge water enters artificial swamp, the wetland depth of water 0.4 meter, within 8 days, tests the water quality after wetland variation afterwards.Wetland flow into water, stream effluent quality, clearance and after wetland purification each chemical composition situation up to standard as table 1.
Certain small watershed of table 1 arable land (paddy field) rainfall runoff water quality wetland variation effect
After artificial swamp of the present invention runs 1 year under natural condition, namely in late June, 2014 starts to discharge water and enters wetland, the wetland depth of water 0.4 meter, and within 7 days, relief Flow in Wetland goes out.Wetland flow into water, stream effluent quality, clearance and after wetland purification each chemical composition situation up to standard as table 2.
Can find out from result table 1, small watershed ploughs (paddy field) rainfall runoff water quality except PH, NO
3 --N meets drinking water standard, NH
3outside-N not super underground water III class standard, all the other TN, TP, CODcr, DO, Pb
+, TDS, NO
2-N etc. 7 have exceeded drinking water standard or underground water III class standard, the water of such water quality flows into subterranean stream and is bound to pollute karstic ground water, but the water after Easy manual's wetland variation of the present invention, except TN, other index majorities can reach national Drinking Water quality standard, surface water quality 2 class standard or 3 class groundwater quality standards, and water quality has had very big improvement.Pollutants removal rate is that the clearance of 35.62% ~ 92.97%, TP reaches 92.97%.
2, the processing power to agricultural area source sewage after a year is run
Certain small watershed arable land rainfall runoff water quality wetland variation effect after table 2 wetland runs 1 year
(1) to the removal effect of total phosphorus
This experimental result table 2 illustrates, wetland initial operating stage, and the clearance of Wetlands on Wastewater phosphorus (TP) is high, reaches 92.97%.This is because adsorption by soil and conversion are the main removal pathway of phosphorus, wetland soil is considered to the home to return to of the phosphorus entering wet land system.Wetland Substrate middle reaches Wingdale gravelly sand, limestone soil etc. are rich in calcium, aluminium, iron plasma, in sewage, water-soluble phosphate and these ions or its metal oxide, oxyhydroxide occur to adsorb and precipitin reaction by ligand exchange, generate insoluble phosphate and be fixed up, therefore, this Wetland Substrate is fine to TP removal effect.After wetland runs 1 year, the clearance of TP reduces 8.22%, illustrates that after running for some time, Wetland Substrate soil particle has adsorbed a certain amount of phosphorus, there occurs decay to the removal ability of phosphorus.
(2) after running 1 year, Wetlands on Wastewater processing power is totally significantly improved
After artificial swamp runs 1 year, the clearance of Wetlands on Wastewater also has great raising, table 2 and table 1 contrast known, except the clearance of TP reduces except 8.22%, the clearance of all other compositions is all greatly improved, and improving minimum is nitrite anions (6.25%), be up to TN(17.33%), as shown in Figure 2, all other pollutants removal rates, all between 9.65 ~ 16.09, illustrate that the maturation of artificial swamp improves sewage treatment capacity significantly.
After building up in April, 2013, after a wheat harvesting period, namely start first time operation.Now, although planted some plants, not yet have good growth, and natural phant also just starts to occur, does not vegetate.Now, and the comprehensive purifying functions such as waterplant, matrix and microorganism are not yet formed, the dirt-removing functions of wetland main or the absorption of matrix, precipitation or chemical reaction etc.So the wetland purification ability after a year after relative maturity there occurs and increases substantially.
Can find out from the embodiment of the present invention, Easy manual's wetland is positioned at the most low-lying place of independently karst small watershed, utilize the marsh sewage treatment system that natural feature construction sewage collecting basin, artificial swamp and waterways etc. are formed, compare with the artificial wet land system of specification, Easy manual's wet land system of the present invention has sewage treatment structure (only needing water collecting basin), ancillary works (only needing low-cost road) is all very simple and easy with auxiliary facility (only needing simple and easy office), needs other matching construction or facility hardly.Construction Easy manual wetland cost is low, operation and maintenance cost is also very low.
Guizhou Plateau area waterplant follows the rule of sprouting spring and summer, death autumn and winter.If for factory or municipal sewage treatment, autumn and winter most plants dead, temperature is lower, wetland wastewater treatment efficiency is bad.But because autumn and winter rainfall is rare, the sewage of widespread pollution from the overuse of fertilizers and pesticides in rural area is also few, risings of water collecting basin temperature medium spring and summer can be stored in completely, thriftiness, wetland purification functional rehabilitation improve just process.
Claims (1)
1. be applicable to an artificial wet land treating system for karst water pollution of area source, it is characterized in that it comprises water collecting basin, artificial swamp and swallow hole, the sewage flowing through karst small watershed flows into swallow hole successively behind described water collecting basin, artificial swamp and waterways.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572585.4U CN204939093U (en) | 2015-08-03 | 2015-08-03 | A kind of artificial wet land treating system being applicable to karst water pollution of area source |
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| CN201520572585.4U CN204939093U (en) | 2015-08-03 | 2015-08-03 | A kind of artificial wet land treating system being applicable to karst water pollution of area source |
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| CN204939093U true CN204939093U (en) | 2016-01-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456650A (en) * | 2020-12-01 | 2021-03-09 | 桂林理工大学 | Constructed wetland system suitable for remaining organic pesticide of karst district agricultural is got rid of |
-
2015
- 2015-08-03 CN CN201520572585.4U patent/CN204939093U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112456650A (en) * | 2020-12-01 | 2021-03-09 | 桂林理工大学 | Constructed wetland system suitable for remaining organic pesticide of karst district agricultural is got rid of |
| JP2022087782A (en) * | 2020-12-01 | 2022-06-13 | 桂林理工大学 | Artificial wetland system suitable to removal of agricultural residual organic agrochemical in karst region |
| JP7137873B2 (en) | 2020-12-01 | 2022-09-15 | 桂林理工大学 | An engineered wetland system suitable for the removal of agricultural pesticide residues in karst areas |
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