Effect of Flow Field Distribution on the Clogging of Subsurface Flow Constructed Wetlands

Abstract:

this review summarizes an important factor of clogging in subsurface flow constructed wetlands ¬(SSF)—field distribution. The efficiency of filter media and the spatial distribution of biological growth are determined by the flow field distribution directly. If the flow field distribution is un-uniform, it would accelerate the clogging of substrate. The influencing factors for flow field distribution, including hydraulic loads, properties of filter media, filling structures and root distribution were investigated, and the clogging reasons were discussed additionally. At last, this study showed some corresponding research methods, and helping in the process of research and development of subsurface flow constructed wetlands in solving clogging problem.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 1349-1353
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.1349
• Online since: December 2012
• Authors: Zhi Xin Song, Shao Yuan Bai, Jian Xu
• Keywords: Clogging, Filter Media, Flow Field Distribution, Hydraulic Load, Root Growth, Subsurface Flow Constructed Wetlands

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