摘要
生物膜法或活性污泥法是常用的处理污水的有效方法,但其费用高,仅在人口密集的城市和工业区适用,而在人口稀疏的地区采用这种方法则不合算,因而也是行不通的。这就需要寻找廉价而又有效的方法来代替。本文概括地介绍了利用既廉价又有效的各种水生和半水生植物处理污水的研究结果。这些方法包括天然生长的植物系统处理污水、沼泽塘法、根区法等。根区法中的芦苇床系统是研究得最多的,也是效果最好的。
Methods of tricklig filters or activated sludge are usually used to treat sewage or waste-water. It is efficient, but the cost of such technology is high. In densely populated urban and industrial centres such cost may be met economically,but in other locations these methods won't work, Therefore it is necessary to generate some alter -native,economical and effective sewage treatment methods, This paper comprehensively summarizes the reesults of scientific researches concr ning aquatic plant treatment systems, such as rooted emergent plant systems, mash pond process, the root zone method and so on. Reedbeol treatment systems have attracted this interest because of their potential for producing costeffective treatment for small communites.
