大连理工大学学报2026，Vol.66Issue(1)：18-24,7.DOI:10.7511/dllgxb202601003
海水养殖废水中磺胺甲(口恶)唑降解及同步反硝化研究
Study of degradation and simultaneous denitrification of sulfamethoxazole in mariculture wastewater
摘要
Abstract
The traditional treatment process of mariculture wastewater has low efficiency and high operating costs for the treatment of antibiotics and nitrate nitrogen.Using the typical antibiotic sulfamethoxazole(SMX)as the research object,and seaweed extract as the additional carbon source,a moving bed biofilm reactor is constructed to achieve SMX degradation and simultaneous denitrification.The results show that when the influent carbon to nitrogen ratio is 2∶1 and the hydraulic residence time is 24 h,the average removal rate of SMX is 76％and the average removal rate of nitrate nitrogen is 87％.Seaweed extract can replace glucose as a carbon source to maintain the efficient operation of the reactor.The mechanism study shows that SMX is converted into 3-amino-5-methyl isoxazole and p-amino benzenesulfonamide by side chain amination,the latter is desulfurized into aniline by the 4S pathway and further degrades into CO2 and H2O.Maribacter,Winogradskyella and Roseibium may be potential SMX-degrading bacteria.The study provides a new strategy for the simultaneous removal of antibiotics and nitrate nitrogen from mariculture wastewater.关键词
磺胺甲(口恶)唑/反硝化/海藻提取物/海水养殖废水Key words
sulfamethoxazole/denitrification/seaweed extract/mariculture wastewater分类
资源环境引用本文复制引用
王朔,张宇晴,王竞..海水养殖废水中磺胺甲(口恶)唑降解及同步反硝化研究[J].大连理工大学学报,2026,66(1):18-24,7.基金项目
国家自然科学基金资助项目(42177375). （42177375）
