CHENGZhi-wen,LIMeng,SUNXin,et al.Progress in Research and Applications on the Control of Clogging in Permeable[J].China Water & Wastewater,2022,38(6):60-66.
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Progress in Research and Applications on the Control of Clogging in Permeable

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第6期 Page: 60-66 Column: Date of publication: 2022-03-17
Author(s):
CHENG　Zhi-wen1;  LI　Meng2; 3;  SUN　Xin2; 3;  LIU　Ming-wen2; 3;  GENG　Kang2; 3;  CHEN　Xiao-wei2; 3
（1. Xianyang Research & Design Institute of Ceramics， Xianyang 712000， China； 2. School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China； 3. Northwest China Key Laboratory of Water Resources and Environment Ecology， Xi’an University of Architecture and Technology， Xi’an 710055， China）
Keywords:
permeable bricks;  pore structure;  clogging mechanism;  clogging maintenance
Abstract:
Permeable bricks are important parts of the sponge city system that can be used to effectively reduce the urban flood risk. However, the permeability of permeable bricks will decrease by particles blocking, which will severely shorten the service life. This paper reviews the classification of permeable bricks, blocking mechanism，anti-blocking control technologies and application of engineering practice in China. The location and degree of permeable bricks blockage are mainly affected by many factors such as materials, pore structure, particulate matter of rainwater runoff and exposed environment. Regular maintenance is required to ensure the permeating performance of permeable bricks, three maintenance methods of manual sweeping, pressure washing and vacuum sweeping are currently used. But only the surface sediments of the permeable material can be removed, which caused limited recovery capacity. The development of high-strength and high-permeability permeable bricks, nanotechnology applications and coupling systems are needed for the control of blockage from the source. Research suggestions are given from the perspectives of slow?blocking permeable bricks and long-term maintenance systems.
Last Update: 2022-03-17