传统工艺和新兴工艺处理重金属废水方法的对比研究

Comparative Study on Treatment Methods of Heavy Metal Wastewater by Traditional and Emerging Processes

工业生产活动不可避免地会对环境造成一定的影响,即使经过相应地处理,工业废水和污水的排放仍然会对自然界的水体环境造成污染,其中比较常见的就是重金属污染。对于生活污水和城市污水所造成的污染,大多可以通过水体生态环境的自然净化作用对污染进行有效控制。而重金属污染不仅难以被降解,同时表现出了高富集性和高毒害性的特点。当前,我国已经将重金属废水处理作为环保工作的重点,传统处理方法虽然操作简单,对设备要求比较低,但难以保证处理后废水的水质,同时其中的贵重金属也难以回收,而新型工艺虽然处理效果好,但稳定性有待提高。本文运用文献分析法、归纳总结法,对传统处理工艺和新型处理工艺进行了分析与研究。

Industrial production activities will inevitably have a certain impact on the environment.Even after corresponding treatment,the discharge of industrial wastewater and sewage will still pollute the natural water environment,among which the more common is heavy metal pollution.Most of the pollution caused by domestic sewage and urban sewage can be effectively controlled through the natural purification of water ecological environment.Heavy metal pollution is not only difficult to be degraded,but also shows the characteristics of high enrichment and high toxicity.At present,China has taken the treatment of heavy metal wastewater as the focus of environmental protection.Although the traditional treatment method is simple and has low requirements for equipment,it is difficult to ensure the water quality of the treated wastewater and recover the precious metals.Although the treatment effect of the new process is good,the stability needs to be improved.In this paper,the traditional treatment process and new treatment process are analyzed and studied by using the methods of literature analysis and induction.