【摘要】 有机污染物造成的环境问题日趋严重,嗜热菌具有高效降解环境有机污染物的潜力.嗜热菌在高温条件下降解有机污染物,代谢速度快,嗜温杂菌的竞争减少,同时高温环境下一些难降解有机物的溶解度和生物可利用性大大提高,有机污染物可得到快速、彻底降解.因此,嗜热菌对有机废水生物处理及有机物污染场地生物修复等意义重大.本文从嗜热菌降解有机污染物的特点、温度的影响、降解途径、降解酶及其编码基因及工程应用等角度,介绍了嗜热菌降解有机污染物的研究进展,并对嗜热菌降解有机污染物的机理、菌种资源储备、技术策略及应用研发等研究方向进行了展望.更多还原

【Abstract】 Persistent organic pollutants have increasingly become a critical environmental concern, while thermophiles have the high potential of degrading various kinds of environmental organic pollutants. At high temperatures, thermophiles have higher metabolic activity, and the competition by mesophiles is reduced, meanwhile, the solubility and bioavailability of some persistent organic pollutants are greatly increased, and thus, the degradation of the pollutants by thermophiles is more rapid and complete. Therefore, thermophils are of great significance for the bio-treatment of organic wastewater and the bioremediation of organic pollutants-contaminated sites. This paper introduced the research progress on the degradation of organic pollutants by thermophiles in terms of the characteristics of thermophiles in degrading organic pollutants, the effects of temperature on the degradation, the degradation pathways, the degradation enzymes, their coding genes, and practical engineering applications. The future research directions including the degradation mechanisms of thermophiles, their resources reserve, related technology strategies and their applications were also prospected.更多还原