Nature Environment and Pollution Technology

Baohui Men ¹, Rishang Long ¹, Yawei Zhao ¹, Anze Wang ¹, Sha Hu ¹, Shuaijin Wu ¹

Affiliations
1 Renewable Energy Institute, North China Electric Power University, Beijing, CN

Abstract

The Yongding River is the mother river of Beijing. However, due to the environmental pollution caused by the economic development, the water and coastal environment of this river has suffered from great destruction. The ecological restoration of the Yongding River is imperative. In this paper, we analysed seven basic water quality indicators in Yongding River based on Information Entropy and found that the main factors for affecting water quality were ammonia and CODMn. Then the basic water quality indicators were predicted, based on Grey System GM(1,1) model and we concluded that turbidity and conductivity would grow fastest in the next 20 years. Finally, we made some reasonable ideas and methods in Yongding River ecological restoration.

Keywords

Yongding River, Water Environment, Grey System GM(1,1) Model, Information Entropy.

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Yawei Zhao ¹, Baohui Men ¹, Anze Wang ¹, Rishang Long ¹, Sha Hu ¹, Shuaijin Wu ¹

Affiliations
1 National Engineering Laboratory for Biomass Power Generation Equipment, Renewable Energy Institute, North China Electric Power University, Beijing-102206, CN

Abstract

In recent years, due to the speeding up of urbanization, the water quality of Yongding river in Beijing is deteriorating. The Garden Show Park was built beside the Yongding river. In this paper, we have made scientific and reasonable evaluation on the water environment of the park, tracking its ecological effect in real time, to provide certain reference for the corresponding improvement measures. Firstly, we collected some water samples in the river, conducted an experiment later, and then we used the improved special operation to calculate the fuzzy result, which is based on the principle of fuzzy comprehensive evaluation. At the same time, we increase the evaluation section, and balance the evaluation results of every section, it is concluded that the water quality level is: the third level (light pollution), and it provides referential basis for the ecological restoration of the river.

Keywords

Garden Show Park, Yongding River, Water Quality, Fuzzy Comprehensive, Evaluation Method.

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