摘要
硝酸盐是污染水体的主要因素之一。该研究采用亲水性和弱疏水性的玻璃态单体 ,应用辐射技术制备具有生物相容性的高分子共聚物载体 ,并使用固定化增殖细胞技术对反硝化细菌进行固定化。研究结果表明 ,采用辐射技术制备的载体 poly(HEA-14 G) 2 5/ 5固定化反硝化菌的硝酸盐去除率达 78%左右 ,其最适宜温度为3 0℃ ,固定化反硝化菌在低温 (10℃ )和低浓度溶解氧条件下较游离反硝化菌表现出明显的耐受性。
Nitrate is a major pollutant in waste water.In this experiment,new methods of immobilized denitrifying bacteria were used Cell growth of immobilized denitrifying bacteria were carried out using copolymer carriers obtained from radiation polymerization of hydrophilic and hydrophobic glass forming monomers.The results showed that the optimum temperature for immobilized denitrifying bacteria was 30℃,and the removal rate of nitrate by immobilized denitrifying bacteria with radiation induced copolymer carrier[poly(HEA 14G)25/5] reached 78%,immobilized denitrifying bacteria were more resistant to low temperature(10℃)and to low concentration DO than that of free denitrifying bacteria.
出处
《江苏农业学报》
CSCD
北大核心
2000年第1期37-40,共4页
Jiangsu Journal of Agricultural Sciences
基金
中国国家科委项目
欧洲联盟科技部资助
