ZHANG Xiang,LI Zi-fu,ZHOU Xiao-qin,et al.Design Analysis of Subsurface Flow Wetland in Constructed Wetland Standards in China[J].China Water & Wastewater,2020,36(18 18):24-31.
Design Analysis of Subsurface Flow Wetland in Constructed Wetland Standards in China
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
18 18
Page:
24-31
Column:
Date of publication:
2020-09-17
- Abstract:
- The constructed wetlands technology for sewage treatment is an ecological treatment method, which has been rapidly developed and applied widely in China in recent years. Since 2009, some relevant functional government departments of nation and provinces have promulgated and implemented a series of design standards, which are used to guide and standardize the design and construction of constructed wetlands. These standards mainly include the parameters of constructed wetland structure design, pollution load design, and hydraulic load design. By comparing the design parameters of subsurface flow constructed wetlands in each standard, it is found that the pollution load and hydraulic load of various standards are significantly different. The calculation results of the constructed wetland design area show that different design parameters should be used for different types of wastewater, and the constructed wetland design cannot be based on hydraulic load or pollution load only. At the same time, it is necessary to consider the influence of climate, wetland substrate, depth, plants and other factors on the treatment effect of the constructed wetland.
Last Update:
2020-09-17