Study of sustainable development in Yongkang city based on environmental capacity and pollutant control

Abstract

Over the past centuries, due to the improvement of the understanding of the natural environment and social service function of rivers, many countries have started the research and practice of water environment protection. China also paid most of its attentions to the water environment in most of its cities and towns. Systematic calculation and analysis of the water environment status becomes famous in most of Chinese regions, which not only shows the current status of water environment protection in China but also indicates the methods to reduce the domestic pollution. In this study, Yongkang city is selected as a typical Chinese city, COD(Chemical Oxygen Demand) and NH3-N(Ammonia Nitrogen) are considered as two typical pollutants, both water environmental capacity and current pollution are calculated. The environmental bearing capacity coefficient is utilized to show the current status of pollution level. The comparison and analysis between the water environmental capacity and current pollution shows a good water quality status in Yongkang city. This study is also able to further improve the water quality and social development in Yongkang city in the future.