利用绿色巴夫藻去除海水养殖水体中N、P的条件优化  

Optimization of N and P removed in mari-culture water by Pavlova viridis

作　　者：钟非[1] 黎慧[1] 程滨[1] 许程林[1] 陈玉生[1] 万夕和[1] 

机构地区：[1]江苏省海洋水产研究所,江苏南通226007

出　　处：《海洋环境科学》2011年第4期586-589,共4页Marine Environmental Science

基　　金：国家海洋局科技推进平台(国海财字[2006]194号);南通市科技创新计划(AL2009010)

摘　　要：为了研究常用饵料微藻绿色巴夫藻对高密度海水养殖水体中N、P的去除能力,探索去除养殖水体中N、P的最优条件,选择起始藻细胞数量、养殖水体稀释率、温度、光照和盐度五种因素开展正交试验。结果表明养殖水体稀释率为50%时,绿色巴夫藻对NH4-N和PO4-P的平均去除率最高,分别为98.7%和85.5%。各种因素影响藻体去除水体中N、P的主次顺序为养殖水体稀释率>起始藻细胞数量>温度>盐度>光照强度,最优方案是起始藻细胞数量为5×105/mL,养殖水体稀释率为50%,盐度为30,光照强度为5 000 lx,温度为25。The nitrogen and phosphorus removed efficiency in the high-density marl-culture water by a marine bait microalgae Pavlova viridis were evaluated. The optimal conditions for removal N, P, five factors including initial algal density, marl-culture water dilution ratio, temperature ,light intensity and salinity were chosen to undertake the orthogonal experiment. The results showed that the average removal rates of NH4-N and PO4-P were 98.7% and 85.5% by P. viridis in the mari-euhure water at a dilution ratio of 50%. The order of the effects of five factors on N, P removal was wastewater dilution ratio 〉 initial algal density 〉 temperature 〉 salinity 〉 light intensity. The optimal conditions for N, P removal were obtained as follow： initial algal density 5 × 10^5/mL, wastewater dilution ratio of 50%, salinity 30,light intensity 5 000 lx, temperature 25 ℃.

关 键 词：海水养殖水体 绿色巴夫藻 N P去除 优化 正交试验 

分 类 号：Q331[生物学—遗传学]