氯乙烯生产过程中含汞废水处理工艺技术研究  

Study on Mercury-containing Wastewater Treatment Technology in Vinyl Chloride Production Process

作　　者：吕淑琪 周瑞琦 鲁鉴予 张冠君 张琦 LYU Shuqi;ZHOU Ruiqi;LU Jianyu;ZHANG Guanjun;ZHANG Qi(Tianjin Research Institute for Water Transport Engineering,M.O.T,Tianjin 300466,China;Key Laboratory of Environmental Protection in Water Transport Engineering,Tianjin 300456,China;Environmental Technology Development of TIWTE(Tianjin)Co.,Ltd.,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]水路交通环境保护技术交通行业重点实验室,天津300456 [3]天科院环境科技发展(天津)有限公司,天津300456

出　　处：《化学与粘合》2024年第4期415-419,共5页Chemistry and Adhesion

摘　　要：为减少氯乙烯不合理生产及污染化排放对环境产生不良影响,通过对氯乙烯生产及含汞废水处理工艺进行阐述,分析比较了不同处理工艺原理、流程等,针对存在的问题对处理工艺进行优化和改造。通过实验确定了树脂投加量为2.0 g/L、pH值为4的情况下进行高效吸附处理效果较好,将其与顺流双效蒸发工艺相结合,优化的复合工艺对汞及氯离子的去除效率得到了明显提高,其中汞含量由1400×10^(-9)降低到≤10×10^(-9),氯离子由59728 mg/L减少至22626 mg/L.In order to reduce the adverse impact of unreasonable production of vinyl chloride and pollution discharge on the environment,the production of vinyl chloride and mercury-containing wastewater treatment processes is elaborated.The principles,processes of different treatment processes are analyzed and compared,and the treatment process is further optimized and transformed according to the existing problems,so as to improve the operation rate.Through experiments,it is determined that the efficient adsorption treatment effect is better when the resin dosage is 2.0 g/L and the pH value is 4.Combined with the downstream double-effect evaporation process,the removal efficiency of mercury and chloride ions by the optimized composite process has been significantly improved.Among them,the mercury content reduces from 1400×10^(-9) to≤10×10^(-9),and the chloride ion reduces from 59728 mg/L to 22626 mg/L.

关 键 词：氯乙烯 含汞废水处理 高效吸附 蒸发工艺 

分 类 号：TQ085[化学工程]