摘要
用化学溶脱法解决人工湿地填料的有机堵塞,结果表明:用碱类、酸类、强氧化剂和洗涤剂可以使有效孔隙率和渗透系数均有不同程度的增加,以强氧化剂类(次氯酸钠)最为明显,可以使渗透系数恢复到原来的69%;三种溶液都对基质中的微生物类群和基质酶产生了伤害,但是经过7d可以基本恢复.说明解决人工湿地有机堵塞的问题可以借鉴和尝试"溶脱法".
The use of chemical solubilization to solve organic clogging was attempted to explore in the article, which provided a new approach and new ideas to the substrate organic clogging. The results showed： the infiltration coefficient and available porosity were increased in varying degrees by using bases, acids, strong oxidizer and detergent. Among the four solvents, the strong oxidizer had the most obvious effects that the infiltration coefficient and available porosity recovered to 69% of the original. The substrate microorganisms and the substrate enzyme activity were injured by adding the three types of solvents, but they could recover after 7 days. We can draw enlightening experiences from the idea of ＂chemical solubilization＂ to resolve the organic clogging in constructed wetland.
出处
《环境化学》
CAS
CSCD
北大核心
2009年第3期409-413,共5页
Environmental Chemistry
基金
江苏省自然科学基金项目(No.BK2006710)
关键词
人工湿地
有机堵塞
溶脱法
室内模拟
constructed wetland, organic clogging, chemical solubilization, laboratory simulation
