再生水水质环境中典型水华藻的生长特性  

Growth Properties of Typical Water Bloom Algae in Reclaimed Water

作　　者：杨佳[1] 胡洪营[1] 李鑫[1] 

机构地区：[1]清华大学环境科学与工程系,环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《环境科学》2010年第1期76-81,共6页Environmental Science

基　　金：国家杰出青年基金项目(50825801)

摘　　要：基于微藻的生长潜力试验,研究了再生水回用于景观水体时的水华风险.结果表明,在天然混合藻种接种体系中,铜绿微囊藻(Microcystis aeruginosa)在再生水水质条件下的生长潜力大于其他受试藻种,其在3种二级出水(A2O、氧化沟和活性污泥)中的最大藻密度均可大于106个.mL-1,比生长速率>0.39 d-1.A2O-超滤膜过滤-活性炭吸附-氯消毒深度处理工艺没有有效减低铜绿微囊藻的生长潜力,难以减小水华风险.再生水中的TP浓度能够明显影响铜绿微囊藻的最大密度(Kmax)和最大种群增长速率(Rmax),且符合Monod方程.Based on Algal Growth Potential Test,the water bloom risk of reclaimed water was studied.Microcystis aeruginosa was proved as the main algae under the experimental conditions in this study.In 3 kinds of secondary effluent（A^2O,Oxidation Ditch and Activated Sludge）,its maximum density could attain above 10^6 cells·mL^-1,and the specific rate was above 0.39 d^-1.Advanced treatment（A^2O-Ultrafiltration Membrance Filter-Activated Carbon and Chlorine Disinfection） did not reduce the growth potential of Microcystis aeruginosa.The effects of initial concentration of phosphorus in reclaimed water on maximum density（Kmax） and population growth rate（Rmax） of Microcystis aeruginosa can be described with Monod equation.

关 键 词：铜绿微囊藻 再生水 磷初始质量浓度 藻类生长潜力 水华控制 

分 类 号：X173[环境科学与工程—环境科学]