臭氧处理对剩余污泥减量化、资源化与无害化的影响研究进展

Research progress on the impact of ozone treatment on excess sludge reduction,recycling and harmlessness

臭氧作为强氧化剂和杀菌剂,此前被广泛应用于污水处理系统以改善污水出水水质,近年来在剩余污泥原位减量方面得到了广泛的关注。首先,总结了臭氧处理对剩余污泥原位减量和脱水性能的影响;其次,归纳了臭氧联合厌氧消化技术对污泥资源化的促进作用;接着,从无害化角度总结了臭氧处理对污泥中痕量有机物降解的影响;最后,对臭氧处理污泥技术的经济成本与能耗进行了总结分析。

As a strong oxidant and bactericide,ozone has been widely used in wastewater treatment to improve the quality of effluent.In recent years,ozonation had attracted extensive attention in terms of in-situ excess sludge reduction.Firstly,the effect of ozone treatment on excess sludge(in-situ reduction effect and dewatering performance)was summarized.Secondly,the performance of ozone treatment combined with anaerobic digestion of sludge on resource utilization was summarized.Then,the effect of ozone treatment on the degradation of trace organic substances in sludge was reported from the perspective of harmlessness.Finally,the economic cost and energy consumption of ozone treatment on sludge were analyzed.