渔业现代化Issue(3)：11-14,42,5.DOI:10.3969/j.issn.1007-9580.2014.03.003
复合载体固定化细菌降解养殖水体中氨氮和亚硝酸盐氮的研究
Study on removing ammonia nitrogen and nitrite nitrogen from aquaculture wastewater by immobilized microorganisms with composite carrier
摘要
Abstract
This paper is to find out the best composition of the immobilized microbial carrier and the optimum ration with the parameters of biodegradation rates on the ammonia nitrogen and nitrite nitrogen in aquaculture wastewater. Using polyvinyl alcohol ( PVA) and sodium alginate ( SA) as carriers and silica ( SiO2 ) as adsorbent, immobilized composite carrier beads were obtained with entrapping method. Based on that, the removal effect of immobilized carriers with different ratios of the components on ammonia nitrogen and nitrite nitrogen in the wastewater were studied. The experiment results showed that the optimum technics conditions were:the PVA mass percent 10%, SA mass percent 3%, bacteria mass percent 0.1%, silica mass percent 4%, and the cross-linking time 36 h. And the removal rate of ammonia nitrogen and nitrite nitrogen could reach to 96% and 98% in 24 h, respectively. The immobilized microorganism with adding the SiO2 has characteristics of high microbial load and large specific surface area. It shows that the process is simple and high efficiency, which is good approach with application value.关键词
固定化微生物/聚乙烯醇/海藻酸钠/包埋法/复合载体/养殖废水Key words
immobilized microorganism/polyvinyl alcohol/sodium alginate/composite carrier/aquaculture wastewater分类
农业科技引用本文复制引用
魏大鹏,单洪伟,马甡..复合载体固定化细菌降解养殖水体中氨氮和亚硝酸盐氮的研究[J].渔业现代化,2014,(3):11-14,42,5.基金项目
国家科技支撑计划项目“南海区对虾高效健康养殖技术集成与示范” （）
