甲胺生产废水治理工程实例  

Examples of Wastewater Treatment Projects in Methylamine Production

作　　者：王宁 阮志伟 张炜铭 WANG Ning;RUAN Zhi-wei;ZHANG Wei-ming(Jiangsu Nanda Environmental Protection Technology Co.,Ltd.National Environmental Protection Organic Chemical Wastewater Treatment and Resource Engineering Technology Center,Nanjing 210046,China;Key Laboratory of Pollution Control and Resource Research,School of Environment,Nanjing University,Nanjing 210023,China)

机构地区：[1]江苏南大环保科技有限公司,国家环境保护有机化工废水处理与资源化工程技术中心,江苏南京210046 [2]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210023

出　　处：《环境科技》2021年第6期60-62,共3页Environmental Science and Technology

摘　　要：甲胺是以液氨和甲醇为原料,在催化条件下通过加压精馏分离而制得不同结构系列产品,甲胺生产废水主要来源于精馏过程。甲胺生产废水中主要污染物为一甲胺、二甲胺、三甲胺、甲醇及氨氮等,其COD浓度较高,生物毒性较强,可生化性较差,难以直接生化处理。经探索研究,采用了"两级树脂吸附+水解酸化+UASB+A/O"组合工艺处理该股废水,实际运行结果表明,最终出水水质优于当地园区污水厂的纳管排放标准,该项目的整体投资及运行费用较低,并且可对其中的甲胺类有机物进行资源化回收。Methylamine is a series of products with different structures made by liquid ammonia and methanol as raw materials through pressure distillation and separation under catalytic conditions.The main source of methylamine production wastewater is the distillation process.The substances are monomethylamine,dimethylamine,trimethylamine,methanol and ammonia nitrogen,etc,always with high COD concentration,strong biological toxicity,poor biochemical ability,and difficult to directly biochemically treat.After exploratory research,the combined process of"two-stage resin adsorption+hydrolysis acidification+UASB+A/O"was used to treat the wastewater.Actual operation results show that the final effluent quality is much better than the discharge standard of the local wastewater treatment plant in the park.The overall investment and operating costs of the project are low,and the methylamine organics can be recycled.

关 键 词：甲胺废水 吸附法 生化法 资源化 

分 类 号：X5[环境科学与工程—环境工程]