摘要
基质堵塞是人工湿地污水处理系统中的常见问题,会缩短人工湿地使用寿命并降低湿地对污染物的去除效率。总结了人工湿地堵塞的成因和基本过程、人工湿地堵塞的物理、化学和生物机制以及投加蚯蚓、安装复氧通气管、施用药剂等防治基质堵塞的新技术,建议从人工湿地设计、运行、维护等方面解决人工湿地堵塞问题,为人工湿地工程实践提供理论参考。
Substrate clogging is a common problem associated with wastewater treatment in constructed wetlands, which will result in the shortage of lifetime and the decrease of removal efficiency. In this paper, the basic processes of substrate clogging in constructed wetlands are summarized and the clogging mechanisms are analyzed from physical, chemical and biological aspects, new techniques such as inputting earthworms, installing air pipes and dosing medicines are introduced. Then much more attention should be paid to the design, operation and maintenance of constructed wetland in order to solve this problem efficiently.
出处
《安徽农业科学》
CAS
2012年第28期13945-13947,共3页
Journal of Anhui Agricultural Sciences
基金
国家自然科学基金联合基金项目(U0933601)
国家自然科学基金项目(41171074
40771013
40971285)
关键词
人工湿地
基质
堵塞
新技术
Constructed wetlands
Substrate
Clogging
New techniques
