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Treating of Simulated Sewage by Artificial Wetland with Surface Flowing Water

YU Yi-jiang

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Abstract

Simulated sewage was treated by laboratory artificial wetland with surface flowing water,and the performance and related operation parameters were investigated.The result showed that the removal of COD,TN,and TP reached 75%,75%,and 73% respectively.And the COD and TN could reach discharge standard Class 1 under 3 d and 4 d of apparent retention time respectively,but 6 d of apparent retention time was needed for TP reaching discharge standard Class 2.In addtion,the wetland plants could obviously improve the TN and TP removal.

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What this paper is about

Simulated sewage was treated by laboratory artificial wetland with surface flowing water,and the performance and related operation parameters were investigated.The result showed that the removal of COD,TN,and TP reached 75%,75%,and 73% respectively.And the COD and TN could reach discharge standard Class 1 under 3 d and 4 d of apparent retention time respectively,but 6 d of apparent retention time was needed for TP reaching discharge standard Class 2.In addtion,the wetland plants could obviously improve the TN and TP removal.

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Available abstract

Simulated sewage was treated by laboratory artificial wetland with surface flowing water,and the performance and related operation parameters were investigated.The result showed that the removal of COD,TN,and TP reached 75%,75%,and 73% respectively.And the COD and TN could reach discharge standard Class 1 under 3 d and 4 d of apparent retention time respectively,but 6 d of apparent retention time was needed for TP reaching discharge standard Class 2.In addtion,the wetland plants could obviously improve the TN and TP removal.

Key concepts: Sewage, Wetland, Surface water, Environmental science, Environmental engineering, Hydrology (agriculture), Pulp and paper industry, Chemistry

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