固定化小球藻去除氮磷的研究  

Study on Nitrogen and Phosphorus Removal by Immobilized Chlorella

作　　者：王其鹏 张达娟 黄莺 王泽斌 张树林 张志华 WANG Qipeng;ZHANG Dajuan;HUANG Ying;WANG Zebin;ZHANG Shulin;ZHANG Zhihua(College of fisheries,Tianjin Agricultural University,Tianjin Key Laboratory of Aquatic Ecology and Aquaculture,Tianjin 300384,China)

机构地区：[1]天津农学院水产学院,天津市水产生态及养殖重点实验室,天津300384

出　　处：《水处理技术》2023年第2期62-65,共4页Technology of Water Treatment

基　　金：国家自然科学基金项目(32172978);中央引导地方(天津)科技发展专项(21ZYCGSN00500);天津市淡水养殖产业技术体系创新团队-养殖水环境调控岗位(ITTFRS2021000-009);天津市教委科研计划项目(2020ZD06,2021KJ110)。

摘　　要：使用海藻酸钠(SA)和聚乙烯醇(PVA)作为载体、以氯化钙(CaCl_(2))和硼酸(H_(3)BO_(3))为交联剂,制作固定化小球藻,在筛选最佳制备条件的基础上探讨固定化小球藻对人工废水和养殖用水的净化效果。结果表明,当SA和CaCl_(2)质量分数均为2%,PVA和H_(3)BO_(3)质量分数分别为1%和3%,交联时间为12 h时制备的固定化小球藻最佳。PVA质量分数为1%时固定化小球藻去除人工废水中的氨氮、亚硝态氮、硝态氮和总磷的效果最好,去除率分别为60.92%、77.04%、79.06%和83.38%。在草金鱼循环水实验中应用,固定化小球藻去除氮磷效果较对照组有显著优势。Using sodium alginate (SA) and polyvinyl alcohol (PVA) as carriers,calcium chloride (CaCl_(2)) and boric acid (H_(3)BO_(3)) as crosslinking agents,were prepared to immobilize Chlorella.Based on the best preparation conditions,the purification effect of the immobilized Chlorella on artificial wastewater and aquaculture water was discussed.When the concentrations of SA,CaCl_(2),PVA,and H_(3)BO_(3)were 2%,2%,1%,and 3% respectively,and the crosslinking time was 12 h.The results showed that the immobilized Chlorella was the best.When the concentration of PVA was 1%,the immobilized Chlorella was the best to remove ammonia nitrogen,nitrite nitrogen,nitrate nitrogen,and total phosphorus in the artificial wastewater,and the removal rates were 60.92%,77.04%,79.06%,and 83.38%respectively.The application of the immobilized Chlorella in the circulating water of grass goldfish has a significant advantage over the control group.

关 键 词：固定化 小球藻 无机氮 总磷 

分 类 号：X714[环境科学与工程—环境工程]