Title: Method for river pollution control plan based on water quality target management and the case study
Abstract: Water quality target management is the fundamental choice in our country for the situation of high and complex river pollution. Although the gross control of water pollution has been studied for a long time,the systematic study for the method of making pollution control plans based on water quality target is still scare. In this study,we established a method to make water quality target-based pollution control plan suitable for the national conditions. This method was based on capacity control rather than gross control and was carried out in four steps: diagnosis of water environment,the target determination of water quality and load allocation,measurements implementation and performance evaluation. The method was applied in Xingtai Reach of Fuyang River. The results of diagnosis indicated that ammonia was the key pollutant in this river. Based on the national and province monitoring stations,4 cross-sections of the river were selected for examination. Three scenarios were set according to the existed pollution control plans,in which ammonia should be smaller than 10,11,12 mg·L- 1and COD should be smaller than 80,55,50 mg·L- 1. We divided the reach into 13 control units and calculated the water environmental capacity of each unit. The current pollutant load of each unit was also checked and the load needed to cut was allocated to the discharge outlet proportionally. Based on the allocation results,some measurements were proposed. The point sources pollution can be controlled through industry and domestic wastewater treatment; the nonpoint source pollution can be reduced by rural sewage control; the pollution load in the watercourse can be reduced through riverbank waste management. Finally,the construction of river wetlands were proposed to reduce the pollutant.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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Cited By Count: 4
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