微量营养物质影响活性污泥法处理难降解工业废水效果的研究进展

摘要

Aiming at the problem of poor biodegradability of industrial wastewater,the research progresses on treatment of refractory industrial wastewater by activated sludge process with addition of micronutrients were reviewed.The classification of micronutrients was introduced.The effects of different microorganisms such as trace metal elements and vitamins,and their appropriate concentrations on growth of microorganism and treatment of refractory industrial wastewater were summarized.It was pointed out that:Addition of necessary micronutrients was a feasible optimization strategy to improve the refractory industrial wastewater treatment effect,but it depended on the biodegradability and nutrient requirements of industrial wastewater;The metabolic pathways of pollutants in biodegradation with micronutrients improvement should be studied.%针对工业废水难生物降解的问题,综述了通过添加微量营养物质影响活性污泥法处理难降解工业废水效果的研究进展,介绍了微量营养物质的分类,总结了微量金属元素和维生素等不同种类微量营养物质及其适宜浓度对微生物生长的作用以及对污泥法处理难降解工业废水效果的影响.指出:补充必要的微量营养物质是提高难降解工业废水处理效果的可行的优化策略,但是需要针对工业废水可生化性和营养需求的特点有的放矢地进行补充;另外需要对各种微量营养物质促进污染物降解的代谢途径进行研究.