中文关键词微藻膜反应器脱氮除磷膜污染海水养殖废水 英文关键词microalgaemembrane reactornitrogen and phosphorus removalmembrane foulingaquaculture wastewater

作者	单位	E-mail
马航	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200	mhllvmhh@qq.com
李之鹏	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200
柳峰	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200
徐仲	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200
尤宏	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200 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	youhong@hit.edu.cn
王芳	哈尔滨工业大学(威海), 海洋科学与技术学院, 威海 264200
陈其伟	泛华建设集团有限公司湖南分公司, 长沙 410000

中文摘要 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15g·（m³·d）^-1和2.8g·（m³·d）^-1.反应器中的微藻能够较快富集，最大生长速率可达53.3mg·（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. 英文摘要 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.

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