难降解有机废水处理技术研究进展

随着化学工业及其相关产业的高速发展,难生物降解的有机污染物工业废水种类和数量日益增多，对生态环境和人类健康的危害也日益严峻，尤其是化工、医药、农药、造纸和冶金等行业。由于经济和技术方面的原因，采用传统的废水处理技术如物理法、化学法和生化法已不能满足越来越高的环保要求,探索高效、经济的方法处理高毒性和难生化降解有机废水已成为化学界和环保领域重要的研究课题。阐述各种方法和工艺的优缺点及其研究现状,并在加强单一技术研发的基础上，提出多种处理技术耦合新工艺，如光-Fenton氧化相结合处理工艺、厌氧与好氧相结合处理工艺和化学与生化处理组合处理工艺，既克服了传统处理有机废水工艺的缺点，同时具有较好的处理效果，为今后高浓度有机废水处理指明研究方向，对高浓度有机废水的工业处理具有重要意义。

Advance in treatment technology of refractory organic wastewater

With the rapid development of the chemical industry and its related industries,the kinds and the number of biochemical degradation-resistant organic pollutants in the wastewater is increasing. The wastewater caused enormous threat for the ecological environment,and endangered the health of human beings seriously,especially in chemical,pharmaceutical,pesticide,paper and metallurgy industries and so on. The conventional treatment technologies for wastewater such as physical treatment,chemical treatment and biological treatment methods can not meet the increasingly environmental requirements due to the economy and technologies. Therefore,exploring efficient and economical methods to deal with organic pollutants with highly toxicity and biochemical degradation-resistant becomes an important subject in the field of environmental protection. In this paper,the advantages and disadvantages of various treatment methods and processes and the research status were summarized. On the basis of strengthening the research and development of single technology,the new technologies coupled by various treatment techniques were proposed,such as the combination of light-Fenton oxidation treatment process,anaerobic and aerobic combination treatment technology,chemical and biological combination treatment process. The new coupling technologies overcame the shortcomings of traditional treatments of organic wastewater,and had better treatment effects. The research trends for the treatment of high concentration organic wastewater in the future were outlined.