CAJ | 학술논문

城市污水厂二级生物处理出水中的色度物质构成复杂且难以处理，随着排放标准日益严格和再生水用量的不断提高，解决色度问题逐渐成为研究热点。本文介绍了色度的概念和组成，总结了国内外研究者利用混凝、氧化技术、膜过滤技术和组合工艺去除色度的效果和机理，分析了影响其脱色效果的因素，并简要评述了各项技术的应用前景。总结发现，纳滤（去除率90%～100%）、臭氧及光催化及其组合工艺（60%～80%）效果最优，其次是混凝、超滤及其组合工艺（50%），而微滤、含氯氧化剂及紫外照射工艺脱色效果较差。最后对本领域的发展前景作了展望，提出研究色度物质的来源及构成，关注脱色工艺性能及复色的可能性，以及实现脱色、消毒和去除微量有机物的多功能性，将是未来的研究重点。
성시오수엄이급생물처리출수중적색도물질구성복잡차난이처리，수착배방표준일익엄격화재생수용량적불단제고，해결색도문제축점성위연구열점。본문개소료색도적개념화조성，총결료국내외연구자이용혼응、양화기술、막과려기술화조합공예거제색도적효과화궤리，분석료영향기탈색효과적인소，병간요평술료각항기술적응용전경。총결발현，납려（거제솔90%～100%）、취양급광최화급기조합공예（60%～80%）효과최우，기차시혼응、초려급기조합공예（50%），이미려、함록양화제급자외조사공예탈색효과교차。최후대본영역적발전전경작료전망，제출연구색도물질적래원급구성，관주탈색공예성능급복색적가능성，이급실현탈색、소독화거제미량유궤물적다공능성，장시미래적연구중점。
The colored organic matter (CDOM) in the secondary effluent of wastewater treatment plants(WWTPs) has complicated components,which makes it difficult to remove. This paper reviewed the concepts and components of CDOM in WWTPs effluents and various treatment methods that may be employed in the reduction of CDOM. These processes include flocculation,oxidation process, membrane technology and combined processes. The removal efficiencies and mechanism were summarized,influencing factors,comments and prospective applications of each method were analyzed as well. It was concluded that nanofiltration (removal rate 90%-100%),ozone,photocatalysis oxidation and their combined processes (60%-80%) possess the best removal efficiencies. The removal efficiencies of coagulation,ultrafiltraion and their combined processes (50%) are not as good as that of the above methods,but better than that of microfiltration,chlorine oxidizer and UV radiation. Future research in this field should focus on the source and composition of CDOM,the versatility performance of color as well as disinfection and trace organic matters removal,and the possibility of recolor of effluent.