藻菌共生体系对镇江市金山湖湖水的异位修复模拟研究  

Simulation of ex-situ remediation of Zhenjiang Jinshan Lake using algae-bacteria symbiotic system

作　　者：刘学卿 郑佩[2] 陈芳艳[3] 盛建国[3] 成小锋 唐玉斌[3] 

机构地区：[1]镇江市环境监测中心站,江苏镇江212004 [2]长安大学环境科学与工程学院,陕西西安710054 [3]江苏科技大学生物与化学工程学院,江苏镇江212018 [4]镇江市水利投资公司,江苏镇江212013

出　　处：《江苏科技大学学报（自然科学版）》2015年第3期297-302,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

摘　　要：根据镇江市金山湖湖水的水质配制了模拟湖水,考察了小球藻、栅藻、铜绿微囊藻和聚球藻对模拟湖水中总氮(TN)、总磷(TP)和化学需氧量(COD)的去除效果,筛选出小球藻作为优势藻种.文中研究了小球藻的初始密度对模拟湖水中TN、TP和COD去除效果的影响.结果表明:小球藻初始密度为5×106个/m L时对TN、TP和COD的去除效果相对较好,在72 h内去除率分别可达55.1%,96.2%和55%.文中还对藻菌共生体系修复模拟湖水的效果进行了研究,确定了最佳藻菌体积比为1∶2时,TN,TP和COD的去除率分别达到62.4%,97.2%和96.2%.结果表明:藻菌共生体系可有效地对富营养化湖水进行异位修复.According to the water quality of Zhenjiang Jinshan Lake,the simulated lake water was prepared. The removal efficiencies of total nitrogen,total phosphorus and chemical oxygen demand（ COD） in the simulated lake water by chlorella,scenedesmus,microcystic aeruginosa and synechococcus were inspected. Chlorella was filtered out as the dominant species. The effects of initial cell densities of chlorella on removal rate of total nitrogen,total phosphorus and chemical oxygen demand were studied. The results show that,the removal efficiency of total nitrogen,total phosphorus and chemical oxygen demand by chlorella with initial cell density of 5 × 10^6/ m L were the highest; after a culture period of 72 hours,the removal efficiency of TN,TP and COD reached 55. 1%,96. 2% and 55%,respectively. Furthermore,the remediation efficiency of the simulated lake water by algae-bacteria symbiotic system was also studied. The optimum ratio of algae to sludge is determined as 1：2. Under the optimum conditions,the removal efficiency of TN,TP and COD attained 62. 4%,97. 2% and 96. 2%,respectively. The results show that the eutrophic lake water can be ectopicly remedied effectively by algae-bacteria symbiotic system.

关 键 词：藻 活性污泥 藻菌共生系统 湖水修复 

分 类 号：X131.2[环境科学与工程—环境科学]