屋面雨能驱动微滤膜池耦合电氧化消毒处理雨水

刘立凡; 王震; 赵文涛; 洪流; 林茂宏; 徐炯基; 王志红; 杜星

doi:10.13205/j.hjgc.202103003

屋面雨能驱动微滤膜池耦合电氧化消毒处理雨水

doi: 10.13205/j.hjgc.202103003

1. 广东工业大学土木与交通工程学院, 广州 510006;
2. 佛山市土壤和固体废物污染防治技术服务中心, 广东佛山 528000;
3. 佛山市环境保护投资有限公司, 广东佛山 528000

基金项目:

国家自然科学基金项目青年基金（51808131）；广东省自然科学基金（2018A030310569）；广东省高校重大科研青年创新项目（2017KQNCX055）。

详细信息

作者简介:
刘立凡(1972-),女,硕士,副教授,主要研究方向为生物处理理论与技术。liulifangd@163.com

通讯作者:
杜星(1989-),男,博士,副教授,主要研究方向为膜法水处理技术。hitduxing@163.com

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出版历程
- 收稿日期: 2020-03-11
- 网络出版日期: 2021-07-19

UTILIZING ROOF RAINWATER ENERGY TO DRIVE MICROFILTRATION MEMBRANE COUPLED WITH ELECTRO-OXIDATION DISINFECTION TO TREAT RAINWATER

1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;
2. Foshan Municipal Technical Service Center for Soil and Solid Waste Pollution Prevention and Control, Foshan 528000, China;
3. Foshan Environmental Protection Investment Co., Ltd, Foshan 528000, China

摘要

摘要: 为屋面雨水的再生研发合适的处理技术，提出了一种利用屋面雨能驱动微滤膜池耦合电氧化消毒处理屋面雨水的系统，研究了重力驱动膜生物反应器处理模拟屋面雨水的效果。在运行280 h的设定水头（ΔH=0.6 m）下，膜通量稳定在7 L/（m²·h），膜出水浊度控制在0.34 NTU以下，其对有机物的去除率很低，但对氨氮的去除率可达到80％以上。对膜上滤饼层进行扫描电子显微镜（SEM）和能谱（EDS）分析表明，滤饼层上存在大量构成有机化合物的元素，而且滤饼层具有去除痕量金属的能力。电氧化工艺的消毒结果表明，Ti/IrO₂-Ta₂O₅电极杀菌消毒效果优良，当电流密度为10 mA/cm²，电氧化消毒时间≥15 min时，出水细菌总数<100 CFU/mL。该研究可为屋面雨水的处理和应用提供参考。
- 屋面雨能 /
- 雨水处理 /
- 重力驱动膜生物反应器 /
- 电氧化 /
- 消毒
Abstract: Inorder to develope suitable treatment technologies for roof rainwater reclamation, a system utilizing roof rainwater energy to drive a microfiltration membrane pool coupled with electro-oxidation disinfection to treat roof rainwater was proposed. Firstly, the gravity-driven membrane bioreactor performance in treatment of simulated roof rainwater was investigated. The membrane permeate flux stabilized at 7 L/(m²·h) under a set water head (ΔH=0.6 m) over 280 hours of operation, and the turbidity of membrane effluent was lower than 0.34 NTU. However, the removal rate of organic matter was limited, while the removal rate of NH₃-N reached 80% above. Then, scanning electron microscopy(SEM) and energy dispersive spectrometry (EDS) analysis confirmed that diverse elements constituting organic compounds existed in the filter cake layer on the vicinity of membrane, and the filter cake layer exhibited good performance in trace metals removal. Finally, the disinfection results of the electro-oxidation process showed that Ti/IrO₂-Ta₂O₅ electrode had excellent sterilization effect. When the current density was 10 mA/cm² and the electro-oxidation time was not shorter than 15 min, the total number of bacteria in the effluent was less than 100 CFU/mL. The research provided a reference for the treatment and disinfection of roof rainwater.
- roof rainwater energy /
- rainwater purification /
- gravity-driven microfiltration membrane /
- electro-oxidation /
- disinfection

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参考文献(23)

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