WANGWen-dong,WANGLi-jun,GAOXiao-wei,et al.Research on Circulating Bypass IVCW for Water Quality Improvement[J].China Water & Wastewater,2023,39(12):135-140.
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Research on Circulating Bypass IVCW for Water Quality Improvement

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第12期 Page: 135-140 Column: Date of publication: 2023-06-17
Author(s):
WANG　Wen-dong1;  WANG　Li-jun1;  GAO　Xiao-wei1;  DONG　Ning-ning2;  ZHOU　Jun3;  LIU　Yan4;  YUAN　Lin5
（1. Beijing Institute of Water， Beijing 100048， China； 2. Beijing Changping District Water Supply Service Center， Beijing 102200， China； 3. Huitian Water Service Center of Changping District of Beijing， Beijing 102200， China； 4. Beijing Changshui Construction Co. Ltd.， Beijing 102200，China； 5. Ming Tombs Water Service Center of Changping District of Beijing， Beijing 102200， China）
Keywords:
bypass wetland;  circulating backwater;  IVCW;  water purification;  landscape improvement
Abstract:
Based on the actual problems of insufficient ecological flow, slow water flow, substandard water quality and poor water ecological landscape in the design year of Guishui River, the circulating bypass integrated vertical-flow constructed wetland (IVCW) is constructed on the basis of current circulating pipelines along the river. The main result shows the optimal circulating flow of the project is 7×104 m3/d, and the total area of the constructed wetland is 22.6 hm2. The IVCW combined with “downward flow pool and upward flow pool” could effectively solve the problem of short circuit which is prone to occur in horizontal subsurface flow wetland, and it could provide a good anaerobic/anoxic/aerobic micro-environment for wetland microorganisms. The effluent COD, TP and ammonia nitrogen of the wetland are superior to level Ⅲ criteria of Environmental Quality Standards for Surface Water (GB 3838-2002), and it has a certain removal effect on TN.
Last Update: 2023-06-17