Surface source pollution control technology based on point-line-surface stereo configuration

A non-point source pollution and control technology, applied in the field of new technology, can solve problems such as non-point source pollution, achieve low operating costs, simple operation and management, and good application prospects

Active Publication Date: 2014-01-15
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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Problems solved by technology

[0004] The present invention is aimed at the outstanding problems of rural and agricultural non-point source pollution, and proposes "point (pre-storage processing)-line (ecolog

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  • Surface source pollution control technology based on point-line-surface stereo configuration
  • Surface source pollution control technology based on point-line-surface stereo configuration

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[0022] detailed description

[0023] (1) Pollution source analysis and resource utilization from the point of view: ①Control of rural domestic sewage: change the way the original washing wastewater is discharged at will, build a flowerbed soil infiltration tank, and recycle domestic sewage. ②Convert domestic sewage and pig-raising wastewater into biogas and fertilizer. The pool volume is 1~2m per population 3 Design and construct according to "Atlas of Standards for Rural Household Hydraulic Biogas Digesters" (GB / T4750-2002). At the same time, the toilet is transformed, and the feces are directly discharged into the biogas tank for fermentation, and the biogas is obtained as household gas. On the other hand, the biogas slurry can be used as fertilizer for farmland crops. ③The front-reservoir system utilizes the local natural clear water pond, and leads the mountain spring water to the clear water pond through natural ditches, which enables villagers to concentrate laundry and v...

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Abstract

The invention relates to the field of surface source pollution control technology, and particularly relates to a new combined process for carrying out point-line-surface stereo technical configuration and process treatment of rural and agricultural surface source pollutants to achieve first-level B standard requirements of 'Urban Sewage Treatment Plant Pollutant Discharge Standard' (GB 18918-2002). Aiming at the characteristics that rural and agricultural surface sources have wide space-time range, large non-determinacy, more complex composition and procedures, and difficult control, the new combined process starts from a source-flow-convergence procedure of loss of nitrogen and phosphorus, simultaneously considers a study area topography and a geomorphic feature, successively arranges a point-line-surface-based denitrification and dephosphorization combination process procedure and a key technology along a pollutant migration path, is characterized by comprising (1) a point type configuration (pretank treatment) technology, (2) a linear type configuration (ecological interception optimized based on a hydraulic power structure) technology and (3) a surface type configuration (combination of deep pond anaerobism and shallow pond aeration) technology, and realizes an objective of beautifying farmer residential areas and agricultural area landscapes while reducing pollution loads.

Description

technical field [0001] This patent relates to the technical field of agricultural non-point source pollution treatment. Specifically, it is a method that can treat rural and agricultural non-point source pollutants through point-line-surface three-dimensional configuration and combination technology to make them meet the "Urban Sewage Treatment Plant Pollutant Discharge Standard" "(GB 18918-2002) a new process required by the first-class B standard. Background technique [0002] With the development of economy and society, the environmental situation in rural areas is relatively severe, and rural non-point source pollution has become one of the main pollution sources affecting the quality of water environment: rural and agricultural non-point source pollution has also become an important factor affecting water quality that cannot be ignored. Compared with foreign countries, my country's research and practice on non-point source pollution control lags behind, and the overall ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/28C02F11/04E03F1/00E02B5/02C02F3/32C02F103/20
CPCY02E50/30Y02W10/10Y02W10/20
Inventor 徐力刚姜加虎潘继征
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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