北京长兴湿地深度净化再生水工程设计  

Design of Changxing Constructed Wetland for Advanced Purification of Reclaimed Water In Beijing

作　　者：邱颖 蔡伟 杨作明 陈驰 张薇 靳明 QIU Ying;CAI Wei;YANG Zuo-ming;CHEN Chi;ZHANG Wei;JIN Ming(Beijing Yubing Hudraulic Survey Planning Design Co.Ltd,Beijing 100161,China;Yongding River Investment Co.Ltd,Beijing 102600,China;Beijing Tsinghua Tongheng Urban Planning&Design InStitute Co.Ltd,Beijing 100085,China)

机构地区：[1]北京禹冰水利勘测规划设计有限公司,北京100161 [2]永定河流域投资有限公司,北京102600 [3]北京清华同衡规划设计研究院有限公司,北京100085

出　　处：《湿地科学与管理》2024年第6期71-76,共6页Wetland Science & Management

摘　　要：为解决再生水中总氮不满足高功能河湖生态补水水质要求的问题,以长兴湿地为例,采用“自然型表流湿地+淹没式生物滤床”主体工艺,对补给永定河的小红门再生水进行深度净化。工程采用寡营养菌载菌填料和硫自养脱氮填料,强化主体工艺的脱氮性能,解决了传统湿地对总氮去除效果不足的问题,运行后预计总氮去除率≥25%,其他各项污染物去除率≥33%,水质达到补水要求,同时实现区域水生态系统的恢复,可为其他高功能要求河湖的再生水生态补给水源净化提供实践借鉴。To solve the problem of total nitrogen in reclaimed water not meeting the water quality requirements for highfunction river or lake ecological water supply,the Changxing wetland was taken as an example for deeply purify the reclaimed water of Xiaohongmen which replenishes the Yongding river in Beijing.This process applied the combined process of"near-natural wetland+submerged bio-filter"that uses oligotrophic bacteria-carrying biofilm filler and sulfur autotrophic denitrification filler to enhance the denitrification performance of the main processs,solving the problem of insufficient total nitrogen(TN)removal in traditional wetlands.After operation,the removal rat of total nitrogen(TN)was expected to exceed 25%,and the removal rat of other main pollutants(chemical oxygen demand(COD),ammonia nitrogen(NH3-N)and total phosphorus(TP))was expected to exceed 33%.The water quality will meet the water supply requirements,the regional water ecological system can be restored as well.The project can provide practical reference for the purification of reclaimed water ecological recharge water sources in rivers and lakes with high functional requirements.

关 键 词：再生水 深度净化 自然型表流湿地 淹没式生物滤床 

分 类 号：X703[环境科学与工程—环境工程]