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固定化硝化细菌去除水体中氨氮的研究
引用本文:冯本秀,赖子尼,陈俊彬,张坤泉,余煜棉.固定化硝化细菌去除水体中氨氮的研究[J].广东工业大学学报,2006,23(2):29-33.
作者姓名:冯本秀  赖子尼  陈俊彬  张坤泉  余煜棉
作者单位:广东工业大学,环境科学与工程学院,广东,广州,510090;珠江水产研究所,广东,广州,510380;西北工业大学,材料学院,陕西,西安,710072;广东工业大学,轻工化工学院,广东,广州,510090;广东工业大学,实验中心,广东,广州,510090
摘    要:研究了以聚乙烯醇(PVA)为骨架载体,添加适量的添加剂,利用活性炭吸附硝化细菌,采用包埋法制作固定硝化细菌小球,去除水体中氨氮的方法.通过实验,发现1%的海藻酸钠(占PVA的凝胶百分比),4%SiO2,0.3%CaCO3作为添加剂,PVA包埋硝化细菌的成球效果较好,小球表现有较佳的机械强度以及传质性能.同时用正交实验确定了在PVA质量浓度为10%,活性炭含量占PVA凝胶的2%,交联时间32h及包菌量的值为1∶2的情况下,包埋的固定化小球去除氨氮的效率最高,42 h就可以达到80%以上,去除氨氮效率强.

关 键 词:固定化微生物  包埋法  硝化细菌  氨氮  聚乙烯醇(PVA)
文章编号:1007-7162(2006)02-0029-05
收稿时间:2005-07-07
修稿时间:2005年7月7日

Study on Removing Ammonium Nitrogen from Wastewater by Immobilized Microorganism
FENG Ben-xiu,LAI Zi-ni,CHEN Jun-bin,ZHANG Kong-quan,YU Yu-mian.Study on Removing Ammonium Nitrogen from Wastewater by Immobilized Microorganism[J].Journal of Guangdong University of Technology,2006,23(2):29-33.
Authors:FENG Ben-xiu  LAI Zi-ni  CHEN Jun-bin  ZHANG Kong-quan  YU Yu-mian
Affiliation:(1.Faculty of Environment Science and Technology,Guangdong University of Technology,Guangzhou 510090,China; 2.Zhujiang Aquiculture Academy,Guangzhou 510380,China;3.Faculty of Material,Northwestern Polytechnical University,Xi’an 710072,China;4.Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510090,China;5.Experiment Center,Guangdong University of Technology,Guangzhou 510090,China)
Abstract:A technics used to efficiently remove NH+4-N in the water treatment is studied with the carrier of PVA entrapping nitrobacteria in this paper.It is reported that 1% sodium alginate,4% SiO2,0.3% CaCO3 are the good additives for PVA beads immobilized nitrifying bacteria by PVA crosslinked with boric acid.The beads have well mechanical intensity and diffusion characteristics.At the same time the NH+4-N removal efficiency is very high with these beads which are made under the conditions of 10% PVA,2% active carbon,32?h crosslinked time and 1 vol.nitrifying bacteria in 2 vol.gelatin.The NH+4-N removal efficiency could reach 80% or more in 42?h.The effect is remarkable.
Keywords:immobilized microorganism  entrapment  nitrifying bacteria  NH_4~ -N  polyvinyl alcohol(PVA)
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