河道排污口原位净化槽中试研究

Pilot Study on In-Situ Purification Tank for River Outfall

摘要: 对暂时无法截污纳口的排污口水质进行原位处理，是保护水资源，改善水环境的关键。为了提升河道排污口水质，对排污口原位净化槽去除污染物的性能进行中试试验。原位净化槽主要由吸附过滤部分和好氧接触氧化部分组成，吸附过滤部分填料由提篮盛装，接触氧化部分挂膜材料采用生物填料。本次试验对原位净化槽对于河道排污口COD_Cr、 NH⁺₄-N、TP的去除效果进行研究。结果表明：当水体COD_Cr含量平均值为170.0 mg/L时，去除率达到53.7%；水体 NH⁺₄-N平均值为10.5 mg/L时，平均去除率为52.2%；当水体排污口水体TP含量为2.43 mg/L时，净化槽平均去除率达到72.9%。

Abstract: It is the key to protect the water resources and improve the water environment by carrying out the in-situ treatment of the water quality of the sewage outfall which cannot be cut off. In order to improve the quality of sewage outfall, pilot test was carried out on the removal of pollutants in the sewage purification tank. In-situ purification tank mainly consists of adsorption and aerobic contact oxidation filter parts, the filler for adsorbing filtration holding by the basket, and the biofilm material of contact oxidation fraction using biological filler. In this experiment, the removal effect of COD_Cr, NH⁺₄-N and TP on the sewage outfall of the river in-situ purification tank was studied. The results show that when the water content of COD_Cr average value is 170.0 mg/L, the removal rate reached 53.7%; the average NH⁺₄-N value of water is 10.5 mg/L, the average removal rate was 52.2%; when the water content of TP sewage water purification tank is 2.43 mg/L, the average removal rate reached 72.9%.