间歇流人工湿地处理农村生活污水的研究

Batch-flow Constructed Wetland for Rural Wastewater Treatment

人工湿地作为一种高效、低能耗的污水处理工艺已被广泛应用于处理各种污水.本研究把含铝给水污泥作为人工湿地的主要基质,进水方式采用间歇式,构建起强化复合基质间歇式垂直流人工湿地系统对太湖农村生活污水进行试验研究.试验表明:当用给水铝污泥作为主要基质时,在人工湿地连续运行过程中,对COD(73%),SS(78%),以及NH3-N(80%)都有很高的去除率,对磷的去除率尤其高(88%).

As a high-performance and low-power consumption of the sewage treatment technology, the constructed wetland has been widely used to deal with the sewage. The water-supply sludge containing aluminium is used as the main substrate of the constructed wetland and the batch mode is as the influent mode to build the batch vertical constructed wetland system with the consolidated composite substrate to test the rural sewage treatment of Taihu Lake. The experiment shows that when the aluminized water supply sludge is used as the main substrate and the constructed wetland system is in continuous operation, the removal rates of COD（ 73%）, SS（ 78%） and NH3 -N （ 80%） are high, especially phosphorus （88 % ）.