REVIEW ON POLLUTION STATUS AND ADVANCED TREATMENT TECHNOLOGIES OF EMERGING ORGANIC POLLUTANTS
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摘要: 新型有机污染物的污染现状及其去除技术近年来受到学界的广泛关注。由于传统污水处理厂不能有效去除新型有机污染物,导致其随污水处理厂出水、污泥等进入生态环境,产生危害。因此,为有效去除该类污染物,近年来新型有机污染物的去除技术逐渐成为研究热点。通过总结新型有机污染物的污染现状及其危害,对目前新型处理技术,包括活化过硫酸盐、光催化耦合微生物同步降解、臭氧微气泡法、金属-有机框架材料、固定化微生物和漆酶降解等技术进行了综述,并分析了各种技术的优势和缺点。结果表明:目前对这些新型工艺降解新型有机污染物的研究大多处于实验室研究阶段,且多为单一工艺研究,部分工艺存在有毒有害产物。建议通过建立数学模型,使其在预测工艺降解能力、评估污染物毒性及其环境风险、污染程度等方面更加简便、经济。同时应进一步筛选高效菌株,研发安全可靠的新型处理材料,通过清洁生产,从根源上消除新型污染物污染。Abstract: In recent years, the pollution status and removal technology of emerging organic pollutants received widespread attention. As the emerging organic pollutants cannot be effectively removed by traditional sewage treatment plants, they will enter the ecological environment together with the sewage treatment plant effluent, sludge, etc., and cause harm. Therefore, in order to effectively remove such pollutants, new treatment technologies gradually become a research hotspot in recent years. By summarizing the treatment status and harms of emerging organic pollutants in sewage treatment plants, new treatment technologies were reviewed including activated persulfate, intimate coupling of photocatalysis and biodegradation technology, ozone microbubble method, metal-organic framework materials, immobilized microorganisms, immobilized laccase degradation technology, etc. And the advantages and disadvantages of various technologies were analyzed. The results showed that the current new treatment technologies for emerging organic pollutants were mainly in the laboratory research stage, and most of them were single technology studies, Some treatment processes even produced toxic and harmful products. It was suggested that mathematical model should be established to make it more convenient and economical to predict the degradation ability of the treatment process, assess the toxicity and environmental risk of pollutants, further screen the high-efficiency strains, and develope safe and reliable new treatment materials. Emerging pollutants were then eliminated from the root, through cleaner production.
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