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

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 ...

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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 (ecological interception based on hydraulic pattern optimization) Technology)-surface (deep pond anaerobic, shallow pond aeration)" three-dimensional configuration combination process

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