摘要
工业废水中重金属离子毒性大且不易生物降解,加上工业废水中的重金属离子浓度越来越高、排放标准控制越来越严,从而使此类废水的排放成为难题。目前,离子交换技术在重金属废水的达标排放处理中取得了不少成果,并在工程中有了卓有成效的应用,本文对此进行了综述。并详细讨论了影响该技术的各项参数,包括:pH值、溶液浓度、树脂用量、接触时间和运行条件等。
Heavy metal ions in industrial wastewater have more toxicity and are diffcult to be degradated biologically.The concentration of these ions in wastewater has become high, and the standards ofwastewater disposal have been strict more and more. Thus the wastewater discharging has turned into a diffcult issue. Presently, ion exchange technology has achieved many fruits in the field of heavy metal wastewater discharging with qualified standards, and has had many successful application in this field. Their applied fruits are reviewed, and various parameter, such as pH value, solution concentration, resin dosage, contact time and operating conditons, affecting the technology are discussed in this paper.
出处
《水处理技术》
CAS
CSCD
北大核心
2008年第2期12-15,20,共5页
Technology of Water Treatment
关键词
重金属
工业废水
离子交换
heavy metal
industrial wastewater
ion exchange
