Building method combining centralized drinking water head site plane source pollution prevention and control in mountainous areas with drinking water engineering

A construction method and drinking water technology, applied in fertilization methods, water resources protection, chemical instruments and methods, etc., can solve problems such as difficult to effectively and systematically control the downstream of soluble pollutants in non-point source pollution, and the singleness of engineering measures. Achieve the effect of solving non-point source pollution prevention and drinking water difficulties, good effect in preventing non-point source pollution, and easy to promote

Inactive Publication Date: 2010-04-07
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the above measures have effectively intercepted and treated the particulate pollutants in ground source pollutants in centralized drinking water sources to a ce

Method used

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  • Building method combining centralized drinking water head site plane source pollution prevention and control in mountainous areas with drinking water engineering
  • Building method combining centralized drinking water head site plane source pollution prevention and control in mountainous areas with drinking water engineering
  • Building method combining centralized drinking water head site plane source pollution prevention and control in mountainous areas with drinking water engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Dianchi Lake is an important reserve surface centralized drinking water source in Kunming City. After point source pollution has been paid attention to and effectively controlled, the problem of non-point source pollution has become more and more prominent. Effective control of non-point source pollution will be the key to protecting the water source. one of the important measures. Muyang Village, Shangsuan Township, Jinning County, Kunming City is located on the east bank of Dianchi Lake. It is a typical southwest mountainous area and one of the main contributors to non-point source pollution of Dianchi Lake. The nitrogen and phosphorus pollution load accounts for about 30-40% of the non-point source nitrogen and phosphorus pollution load of Dianchi Lake. . Muyang Village is an extremely poor mountainous area, and its per capita income is far lower than the national rural per capita income level.

[0038] Choose a 100hm area in Shepherd Village 2 Small wat...

Embodiment 2

[0048] Example 2: Anfu County, Jiangxi is an important hilly area in my country, and the soil is red soil and acidic. In order to reduce the non-point source pollution of the Sheshang Reservoir, protect the water resources of the Sheshang Reservoir, and solve the problem of drinking water for more than 100 people in mountainous areas, the mode of the present invention was also implemented in a small watershed with an area of ​​500 mu upstream of the reservoir. Except that the following two points are different, other specific implementation process is the same as embodiment 1.

[0049] 1) Saving nitrogen and controlling phosphorus in the soil: Since the local slope farmland is acidic soil, 3% polyacrylamide (S 0 ) to replace chemical fertilizers in sloping farmland, and use elemental sulfur when applying base fertilizer. At the same time, when applying the base fertilizer, apply large-grain organic-inorganic compound fertilizer at one time, and the application rate is 300kg / m...

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Abstract

The invention provides a building method which combines centralized drinking water head site plane source pollution prevention and control in mountainous areas with drinking water engineering, comprising the following steps: (1) adopting an intercropping or interplanting mode to plant mountainous crops; (2) utilizing fertilization technology to save nitrogen, control phosphorous and improve soil organic matter; (3) building 3-6 levels of plant hedges in equal distance and equal height from the summit to the foot of the mountain; (4) building an ecological ditch: placing a composite substrate adsorption dam at the bottom of the ditch, planting large-size aquatic plants on the ditch bank, and arranging a valve at the outlet end of the ditch; (5) building a biological pool: the depth of the water in the pool is not less than 2.5m, the biological pool is provided with valves for water intake and discharge, and planting large-size aquatic plants in the area of the biological pool close to the river bank and the side slope of the pool; (6) building a soil infiltration system: selecting a position which is within 100m from the biological pool to build the soil infiltration system, wherein the discharged water directly enters the soil infiltration system; (7) building a collector well; and (8) building an impounding reservoir at a certain height. The invention is simple and practicable, has good effects on preventing and controlling the water head site plane source pollution, is convenient to promote, and simultaneously solves the problem of difficulty in drinking water in poor mountainous areas for thousands of years.

Description

technical field [0001] The invention relates to the field of water and soil loss prevention and control in mountainous water sources and the construction of drinking water projects in mountainous areas, in particular to a model combining the prevention and control of water and soil erosion in mountainous areas with centralized drinking water sources and the construction of rural drinking water projects in mountainous areas. Background technique [0002] At present, the pollution of drinking water resources has become a global problem. The survey of the World Health Organization (WHO) shows that in developing countries, 80% of various diseases are spread because of drinking unsafe and unsanitary water. About 20 million people die from drinking unsanitary water. More than 300 million people in rural my country have unsafe drinking water, of which about 63 million people drink high-fluorine water, 2 million people drink high-arsenic water, more than 38 million people drink brac...

Claims

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Application Information

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IPC IPC(8): C02F9/14A01G1/00A01C21/00C05G3/04C02F3/32C05G3/80
CPCY02A20/402Y02W10/10
Inventor 吴永红颜蓉姬红利杨林章洪丽芳付利波李运东
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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