人民黄河Issue(1)：87-90,4.DOI:10.3969/j.issn.1000-1379.2015.01.022
爱伊河水环境容量与水体自净能力研究
Study on the Water Environmental Capacity and the Water Self-Purification Ability of Aiyi River
摘要
Abstract
Water supply of Aiyi River mainly comes from farmland drainage. Aiyi River gradually showed a trend of eutrophication. Total ni-trogen,ammonia nitrogen,total phosphorus,potassium permanganate index and 5 days biochemical oxygen demand were selected as repre-sentative water quality indicators of Aiyi River. One-dimensional water quality model was selected to calculate the water environmental ca-pacity of Aiyi River. The water self-purification rate and the correlation coefficient between the water self-purification rate and its main in-fluence factors of Aiyi River were calculated and analyzed. The results show that the water environmental capacity for total nitrogen is the smallest and the water environmental capacity for potassium permanganate index and 5 days biochemical oxygen demand are more than that for ammonia nitrogen and total phosphorus in Aiyi River. Total nitrogen content is beyond the load capacity of the Aiyi River. Biological purifica-tion plays a dominant role in the process of self-purification of Aiyi River. 5 days biochemical oxygen demand and total phosphorus are mainly degraded by aquatic plants and heterotrophic bacteria. Total nitrogen is mainly degraded by heterotrophic bacteria. Ammonia nitrogen is mainly degraded by phytoplankton. The self-purification is influenced by water temperature,dissolved oxygen and pH in Aiyi River.关键词
水环境容量/自净率/生物净化/爱伊河Key words
water environmental capacity/self-purification rate/biological purification/Aiyi River分类
资源环境引用本文复制引用
邱小琮,赵红雪,尹娟,张维江..爱伊河水环境容量与水体自净能力研究[J].人民黄河,2015,(1):87-90,4.基金项目
教育部“长江学者和创新团队发展计划”项目（IRT 1067）。 （）
