LIUJian-wei,CHI Ming-jia,TIANHong-yu,et al.Design and Application of a Biological-Ecological Combined Process with Multiple Reaction Zones for Rural Wastewater Treatment[J].China Water & Wastewater,2023,39(14):75-79.
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Design and Application of a Biological-Ecological Combined Process with Multiple Reaction Zones for Rural Wastewater Treatment

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第14期 Page: 75-79 Column: Date of publication: 2023-07-17
Author(s):
LIU　Jian-wei1; 2;  CHI Ming-jia1; 2;  TIAN　Hong-yu1; 3;  SHI　Shi-qiang1; 2
（1. Beijing Engineering Research Center of Sustainable Urban Sewage System Construction and Risk Control， Beijing University of Civil Engineering and Architecture， Beijing 100044， China； 2. Key Laboratory of Urban Stormwater System and Water Environment ， Beijing University of Civil Engineering and Architecture， Beijing 100044， China； 3. School of Chemical & Environmental Engineering， China University of Mining and Technology-Beijing， Beijing 100083， China）
Keywords:
rural wastewater;  biological-ecological combined process;  multi-stage biological contact oxidation;  denitrification filter
Abstract:
Decentralized rural sewage is characterized by large fluctuation of water quantity and quality. This paper designed a biological-ecological combined process with multiple reaction zones and applied it in a village of Beijing. The design treatment scale of the project is 3.0 m3/d, and the main process consists of multistage biological contact oxidation, denitrification filter and ecological filter. Among them, the multi-stage biological contact oxidation consists of anaerobic contact, facultative contact and aerobic contact processes, and the denitrification filter adopts post-denitrification contact process. The effluent quality met the water quality requirements for landscape wetland environment in The Reuse of Urban Recycling Water—Water Quality Standard for Scenic Environment Use (GB/T 18921-2019). The direct operational cost of the project is 0.99 yuan/m3, showing a good economic benefit.
Last Update: 2023-07-17