固定化藻球的强化研究  

Study on the Enhancement of Immobilized Chlorella Balls' Performance

作　　者：严清[1] 冯国忠[1] 

机构地区：[1]重庆师范大学生命科学学院,重庆400047

出　　处：《湖北农业科学》2011年第11期2204-2206,共3页Hubei Agricultural Sciences

基　　金：重庆市教委课题

摘　　要：为解决褐藻胶球在含磷污水中结构易疏松、小球藻易泄漏及胶球易破碎的问题,进行了添加质量分数为1%的活性炭和CaCl2溶液浸泡固定化藻球的加固强化的试验。结果表明,采用添加活性炭的方法可以很好地改进固定化小球的性能,其最佳的添加量为海藻酸钠凝胶的1%;加固胶球系统对氨氮(NH4+-N)的去除率持续增加,最高可增至80%左右;对正磷酸盐(PO43--P)也有较好地去除效果,去除率可达96%以上;胶球经过加固后,胶球内藻细胞密度得到较大提高,固定化性能得到改善。To solve the problems that chlorella balls loose their integrity and algae cells leach easily in the wastewater with phosphate,1% of activated carbon was added into the balls and then hardened by marinating in CaCl2 solution.The results showed that adding activated carbon could improve the performance of immobilized chlorella balls,and the optimal adding amount of activated carbon was 1 percent of alginate sodium.Hardening could enhance the ability of immobilized chlorella balls in removing NH4＋-N and PO43——P from waste water and improve the density of chlorella in ball.The removal efficiency of hardened chlorella balls of NH4＋-N and PO43——P were above 80% and 96% respectively.

关 键 词：固定化藻类 活性炭 加固强化 脱氮除磷 

分 类 号：X703.1[环境科学与工程—环境工程]