微藻膜反应器处理海水养殖废水性能及膜污染特性  

Pollutant Removal Performance and Membrane Fouling Characteristics in Marine Aquaculture Wastewater Treatment by a Microalgae Membrane Reactor

作　　者：马航 李之鹏 柳峰 徐仲 尤宏 王芳 陈其伟[3] MA Hang;LI Zhi-peng;LIU Feng;XU Zhong;YOU Hong;WANG Fang;CHEN Qi-wei(School of Marine Science and Technology, Harbin Institute of Technology,Weihai 264200,China;State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin 150090,China;PANCHINA Construction Group Co.,Ltd.,Hunan Branch,Changsha 410000,China)

机构地区：[1]哈尔滨工业大学(威海)海洋科学与技术学院,威海264200 [2]哈尔滨工业大学环境学院城市水资源与水环境国家重点实验室,哈尔滨150090 [3]泛华建设集团有限公司湖南分公司,长沙410000

出　　处：《环境科学》2019年第4期1865-1870,共6页Environmental Science

基　　金：国家自然科学基金项目(51408158);山东省自然科学基金项目(ZR2017MEE020)

摘　　要：以海水养殖废水为研究对象,探究了微藻膜反应器的脱氮除磷效能及膜污染特性.采用青岛大扁藻(Platymonas helgolandica tsingtaoensis)作为生物源,经过60 d的运行,微藻膜反应器的TN和TP去除率分别为73. 6%和77. 9%,TN和TP去除速率达到15 g·(m^3·d)^(-1)和2. 8 g·(m^3·d)^(-1).反应器中的微藻能够较快富集,最大生长速率可达53. 3 mg·(L·d)^(-1),最大生物量可达1. 4 g·L^(-1).第18d和38d分别对反应器中的微藻进行采收,未影响反应器的脱氮除磷效能,且可以在一定程度上缓解膜污染现象.微藻生物量的增加会显著提高膜污染物质的含量,三维荧光光谱结果表明,色氨酸类蛋白质和芳香类蛋白质是造成膜污染的重要因素.In order to treat mariculture wastewater, the pollutant removal performance and membrane fouling characteristics of a microalgae membrane reactor were investigated using Platymonas helgolandica tsingtaoensis. After 60 days of operation, the total nitrogen (TN) and total phosphorus (TP) removal efficiency of the reactor were 73.6% and 77.9%, respectively, and the removal rates of TN and TP reached 15 g·(m3·d)^-1 and 2.8 g·(m3·d)^-1. The microalgae in the reactor could be enriched rapidly, with a maximum growth rate of 53.3 mg·(L·d)^-1 and a maximum biomass of 1.4 g·L^-1. The microalgae in the reactor were harvested on day 18 and day 36;harvesting did not affect the nitrogen and phosphorus removal efficiency of the reactor. To some extent, the membrane fouling phenomenon was alleviated. The increase in the microalgae biomass would significantly increase the pollutant content of the membrane. The three-dimensional excitation-emission matrix (EEM) spectra results confirmed that tryptophan-like substances and aromatic proteins had a significant effect on membrane fouling.

关 键 词：微藻 膜反应器 脱氮除磷 膜污染 海水养殖废水 

分 类 号：X703.1[环境科学与工程—环境工程]