治理富营养化水体藻华灾害的固定化菌藻技术研究  

Research on immobilized bacteria-Alga technology in treatment of harmful algae blooms of eutrophic waters

作　　者：柴天[1] 刘晓宇[1,2] 许鹏成[3] 傅海燕[1] 陈旭丽[1] 黄国和[1,2] 

机构地区：[1]厦门理工学院环境科学与工程学院,福建厦门361024 [2]华北电力大学资源与环境研究院,北京102206 [3]国电南京自动化股份有限公司,江苏南京211800

出　　处：《自然灾害学报》2015年第5期237-245,共9页Journal of Natural Disasters

基　　金：国家青年自然科学基金项目(51109181);福建省高校杰出青年科研人才项目(JA12243);厦门理工学院对外科技合作专项(E201400600)~~

摘　　要：以活性污泥菌悬液分别与小球藻、盘星藻和斜生栅藻进行配比固定,构建了多种固定化菌藻体系,对其处理富营养化水体水的效果进行了研究。结果表明,固定化菌-藻比例对处理效果有显著的影响,在最佳配比分别为小球藻:菌=1∶1,盘星藻:菌=2∶1,斜生栅藻:菌=1∶1的菌-藻体系中,其中TN最大累积去除率可分别达到39.03%、36.31%和34.34%,而PO34-P最大累积去除率分别为88.55%,91.73%和86.00%。在所构建的三种菌-藻体系中,活性污泥-小球藻体系在处理富营养化程度不同的水体时,均可获得较为理想的效果,其TN、NH4+-N、PO3-4P最大累积去除率分别达到98.82%,99.34%和94.01%,处理后的水体水质可达到地表水环境质量标准中的Ⅰ类标准,是藻华灾害原位治理的可行技术。This paper studied the removal effect of nitrogen and phosphorus in eutrophic waters with three kinds of co-immobilized bacteria-algae （ bacteria ： activated sludge, algae ： Chlorella, Pediastrum and Scenedesmus Obliquus） systems through setting up multiple immobilization systems, and the processing effects of eutrophic waters of differ- ent degree （five concentrations）. The results showed that, in treatment of eutrophic waters, co-immobilized bacte- ria-alga system has a lot of advantages in the role of removing nitrogen and phosphorus by embedded on the same carrier. The best ratios of co-immobilized bacteria-algae of three kinds of algae are ： Chlorella ： bacterial = 1 ： 1, Pediastrum ： bacterial = 2： 1, and Scenedesmus obliquus ： bacterial = 1 ： 1, the maximum cumulative removal rates of TN are 39.03% ,36.31% and 34.34% , and the maximum cumulative removal rates of PO4^3- -P are 88.55% ,91. 73% and 86.00%. Under the optimal condition, the removal effects of nitrogen and phosphorus in different de- grees of eutrophic waters were also studied. The results show that, in the lower concentration of eutrophic waters, the system with Pediastrum ： bacterial = 2： 1 and Scenedesmus obliquus ： bacterial = 1 ： 1 has excellent performance of nitrogen and phosphorus removal; while the different concentrations of eutrophic waters. TN, NH^4＋ -N and PO4^3- -P by the system This result could meet Class I surface water system with Chlorella： bacterial = 1：1 has good purifying effects in In weighty eutrophic waters, the maximum cumulative removal rates of of Chlorella ： bacterial = 1 ： 1 are 98.82%, 99.34% and 94.01%. environment quality standard.

关 键 词：菌-藻体系 固定化 富营养化 藻华灾害 脱氮除磷 

分 类 号：X43[环境科学与工程—灾害防治]