潜流人工湿地修复河道水质研究(英文)

[Objective] This study was to research the treatment effect of different media in undercurrent wetland on contamination,so as to provide reference for rehabitating water body of river along small towns.[Method] Three different media of gravel,cobblestone and shale were used to rehabilitate water quality of contaminated river.[Result] Gravel,cobblestone and shale all performed well in removing TN,TP and CODMn in contaminated water,of which gravel stuffed undercurrent wetland run best,averagely removing 49.4% TN,34.7% and 48.5% CODMn,respectively.[Conclusion] Undercurrent constructed wetland can effectively improve the water quality of contaminated river,and it is cheaper in cost and simpler in operation,thus suitable for generalizing in small towns of China.