氨基酸废水处理工艺脱氮效能提升工程改造  

Improvement of Denitrification Efficiency for the Amino Acid Wastewater Treatment Process

作　　者：夏子翔 李祥[1,2] 黄勇[1,2] 谈新伟 高佳琦 丁鑫 XIA Zixiang;LI Xiang;HUANG Yong;TAN Xinwei;GAO Jiaqi;DING Xing(School of Environment Science and Engineering,Suzhou University of Science and Technology;Institute of Environmental Biotechnology,Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院 [2]苏州科技大学环境生物技术研究所,江苏苏州215009

出　　处：《水处理技术》2022年第1期141-146,共6页Technology of Water Treatment

基　　金：江苏省水处理协同与创新中心项目(XTCXSZ09-4)。

摘　　要：针对某氨基酸生产公司废水总氮排放不达标问题,对原有污水处理站进行升级改造,优化原有运行参数,实现部分构筑物的氮素转化效能提升和药耗、能耗的降低,最终高效、低耗和稳定地实现出水水质达标排放。通过对系统进水方式的改变,以及部分构筑物氮素转化功能及设备的完善,解决了进水波动大,总氮去除效果差等问题。并通过优化系统运行参数实现部分亚硝化,为厌氧氨氧化菌(ANAMMOX)的生长提供基质,有效地富集了ANAMMOX菌,实现了能耗的降低。运行结果表明,COD、氨氮、总氮去除率分别为96.7%、99.2%、94.4%,出水满足GB 3838-2002排放要求。改造后吨水动力和药剂处理费用3.8元,相比改造前减少了0.5元。For an amino acid production company’s total nitrogen discharge problem,the original wastewater treatment station was upgraded.The optimized operating parameters to achieve the improvement of nitrogen conversion efficiency of some structures and the reduction of chemical consumption and energy consumption.Finally,the discharge of water quality standards with high efficiency,low consumption,and stability was achieved.The problems of large fluctuations in influent water and poor removal of total nitrogen have been solved by changing the system influent method and improving the nitrogen conversion function and equipment of partial structures.Through optimizing the operating parameters of the system,partial nitrification (PN) can be achieved,which provides a matrix for the growth of anaerobic ammonia oxidation (ANAMMOX).As a result,ANAMMOX bacteria can be concentrated effectively,thus reducing energy consumption.The operation results showed that COD,NH;-N and TN removal rates were 96.7%,99.2%,and 94.4%respectively,and the effluent achieved the discharge requirements of GB 3838-2002.After the transformation,the cost of water power and chemical treatment is 3.8 yuan,which is 0.5 yuan less than the treatment cost before the transformation.

关 键 词：污水改造 高氨氮 高效脱氮 高COD 低耗 

分 类 号：X703.1[环境科学与工程—环境工程]