文档介绍：Purification of pollutants by ecological
floating-bed process for heavily polluted river

Xiaoyi Xu, Guyuan Luo, Jianfeng Zheng, Lianghua Han
Key Laboratory of Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education,
Chongqing University,
Chongqing, 400045; China
xuxiaoyi99@

Abstract—This paper mainly studied the characteristics of as the purification characteristics to heavily polluted river,
pollutants removal by ecological floating-bed for Linjiang from the perspective of growth characteristics and
River which was one of the heavily polluted branch rivers in temperature, have been reported.
Three-Gorges reservoir area. Ecological floating-bed employed
ceramisite as the substrate. The removal effects of Total Linjiang River is one of the secondary rivers of the
Nitrogen (TN), Total Phosphorus (TP) and Chemical Oxygen Yangtze River in Jiangjin City of Chongqing [10], the water
Demand (COD) and purification characteristics of floating-bed quality in backwater area of Linjiang River was worse than
with two plants of canna indica and cyperus alternifolius were grade V class, and N and P content were seriously exceeded.
studied. The results showed that the plants grew well and The pollution of Linjiang River was mainly industrial
floating-bed had good purification effects on heavily polluted wastewater, domestic sewage a