微电解预处理难降解有机废水的研究进展

Research progress on pretreatment of hard-degradable organic wastewater by micro-electrolysis process

微电解技术作为一种十分有前景的废水预处理手段,能够有效地对不同工业难降解有机废水实现一定程度的净化,同时有效提高废水可生化性和降低废水毒性,为后续的废水生化处理过程提供有利条件。目前,对于微电解技术的工作原理,以及影响微电解反应效果的主要因素的研究,越来越受到广泛重视。相关技术的深入以及其与生化处理手段相结合的工艺在工程上的实践应用,也越来越多地在废水处理领域中有所报道。可见,针对工业难降解有机废水的处理,以微电解技术作为前端预处理工艺,与其他不同生化工艺相组合,能够经济、高效地实现工业废水达标排放的目标。

As a promising technique of wastewater pretreatment, micro-electrolysis can purify different kinds of hard-degradable industrial organic wastewater effectively, and improve the biodegradability as well as decrease the toxicity of the wastewater at the same time, which provide advantage condition to the subsequent biochemical treatment. At present, more and more importance has been attached to the research on the mechanism of micro- electrolysis and the main factors that directly impact the performance of the technique in wastewater treatment. Meanwhile, there has been a large number of cases widely reported about the advanced research on the performance of the said technique as well as the application of the technique that combining micro-electrolysis with traditional biological process in wastewater treatment engineering. It can draw a conclusion that, in view of hard-degradable industrial organic wastewater, the goal that insuring the effluent water after the treatment up to the discharge standard of industrial wastewater can be economically and effectively achieved through using micro-electrolysis as the pretreatment process, and combining it with different kinds of biochemical processes.