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The micro-polluted river water was treated by using integrated horizontal-flow constructed wetland. The micropolluted river water was mixed up by effluent from wastewater treatment plant in west of Changchun City and Leijia river water. The experimental results show that integrated horizontal-flow constructed wetland has better treatment effect on COD, TP, ammonia, nitrite and nitrate nitrogen. Meanwhile, the average removal rates can reach 54.7%, 87.6% 75% 80% and 30% The main indicators of the effluent meet the state standards for surface water class V grade. © 2011 IEEE.
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