固定化小球藻对市政污水中N,P营养盐的深度处理 Ⅱ.细胞负载和饥饿处理对氮磷去除率的影响  

The Tertiary Treatment of N,P Nutrients from Municipal Wastewater by Immobilized Chlorella sp.Ⅱ.Effects of cell loads and starvation treatment on the removing rates of N and P nutrients

作　　者：李贺[1] 王起华[1] 周春影[2] 李婷婷[1] 李莹[3] 程爱华[1] 

机构地区：[1]辽宁师范大学生命科学学院,辽宁大连116029 [2]大连轻工业学院教务处,辽宁大连116034 [3]辽阳职业技术学院师范学院,辽宁辽阳111000

出　　处：《辽宁师范大学学报（自然科学版）》2003年第2期183-186,共4页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(30170099);大连市科委资助项目(1999 95)

摘　　要：将从污水中分离的小球藻包埋于褐藻酸钙胶球中,对人工配制的市政污水进行深度处理.研究了藻细胞负载,饥饿处理等因素对污水中NH+4-P的去除效率的影响以及处理过程中藻类的生长变化.结果表明,当4-N和PO3-细胞负载低于700万细胞/胶球/mL时,反应器对氮磷的去除率随细胞负载的增加而增加,而单位细胞对氮磷的去除量却随负载的增加而减少;对藻细胞进行饥饿处理,并不影响其细胞增殖量,但可明显提高其对NH+4-P4-N和PO3-的去除效率,在3d内对NH+4-P的去除率分别比对照净提高了13%和29%.4-N和PO3-Chlorella sp. isolated from sewage was entrapped in calcium alginate gel and utilized for tertiary treatment of the artificially made second sedimentation wastewater. This paper studied effects of algal cell loads and starvation treatment on removing rates of NH+4-N and PO3-4-P by the immobilized algae and growth changes of the algae at the same time. The results showed that when cell loads were lower than 700×104cell/bead/ml the removing rates of NH+4-N and PO3-4-P increased with the raising of cell loads; but the removing rates by one cell decreased with the raising of cell loads. The results also showed that the starvation treatment on the algae did not influence the algal growth; but it increased the removing rates of NH+4-N and PO3-4-P by the algae and these rates raised 13% and 30% respectively in the first three days. 

关 键 词：市政污水 污水深度处理 固定化小球藻 氮 磷 营养盐 细胞固定化 

分 类 号：X703[环境科学与工程—环境工程] X173