单级生物接触氧化法去除海水养殖废水中的无机氮  

Removal of inorganic nitrogen from marine aquaculture wastewater circulated by single-stage biological contract oxidation

作　　者：廖绍安[1] 王安利[1] 黄洪辉[2] 郑桂丽 韩舞鹰[4] 

机构地区：[1]华南师范大学生命科学学院广东省高等学校生态与环境科学重点实验室,广州510631 [2]中国水产科学研究院南海水产研究所,广州510300 [3]School of Medicine University of Maryland Baltimore [4]中国科学院南海海洋研究所,广州510301

出　　处：《渔业现代化》2008年第1期1-4,共4页Fishery Modernization

基　　金：国家科技支撑计划重大项目(2007BAD29B06);广东省科技计划重大项目(2007A032600004);广东省教育部产学研结合专项资金项目(2006D90204005);农业部渔业生态环境重点开放实验室开放基金项目(2007-5)

摘　　要：利用在填料上人工接种微生物组成的浸没式生物接触氧化单级处理系统对养殖废水进行净化,效果良好。在试验水体体积与处理系统体积之比约为100∶1的情况下,对氨氮、亚硝酸盐氮、硝酸盐氮起始质量浓度分别为4.0 mg/L、1.76 mg/L、800 mg/L,COD质量浓度为16.33 mg/L的养殖废水进行处理,发现处理系统中进行着强烈的硝化和反硝化作用:处理30 h,氨氮质量浓度下降并一直保持在0.1 mg/L;亚硝酸盐氮浓度48 h内,前6 h从1.76 mg/L短暂上升到2.24 mg/L,然后持续下降,最低到0.22 mg/L;对硝酸盐氮的反硝化作用能力也很强,经48 h处理,硝酸盐氮质量浓度从800 mg/L下降到180 mg/L。根据对处理过程中的水质测定,浸没式生物接触氧化单级处理试验系统具有较强的生物脱氮能力。In this paper, inorganic nitrogen was removed from aquaculture waste water by biological contract oxidation system after inoculation of bacteria on media. The treatment system of 9.45 L treated 1m^3 aquaculture waste water by circulation, in which initiative concentrations of TAN, nitrite, nitrate and COD are 4.0 mg/L, 1.76 mg/L, 800 mg/L and 16.33 mg/L, respectively. The concentration of TAN decreased to 0.1 mg/L after 30 hours ; of nitrite increased to 2.24 mg/L in pre-6 hours then decreased to 0.22 mg/L in late 42 hours; of nitrate decreased to 180 mg/L in 48 hours. The results showed that the treatment system had markedly ability of nitrification and denitrification, and had ability of single-stage denitrification.

关 键 词：海水养殖 无机氮去除 生物接触氧化 

分 类 号：X703[环境科学与工程—环境工程] X714