化工废水处理技术与发展

Processes and developments on chemical wastewater treatment

随着经济的发展,化工废水对环境的污染加剧,化工产品生产过程中排放的大多都是结构复杂、有毒有害和生物难以降解的有机物污染物质,处理的难度大.高效、低成本处理化工废水的新工艺、新技术成为目前研究的重点之一.针对化工废水的基本特征和处理现状,指出了各种处理方法的适用条件及其存在的优缺点,对化工废水常用处理技术和最新研究进展及发展趋势进行了综述.根据目前的研究和应用的情况,建议化工废水处理技术的研究重点是解决投资大、成本高和试验研究与实践应用相脱节以及化工废水处理技术如何适应化工废水水质的浓度与成分变化大,处理难度高等特点的问题.

Pollution of chemical wastewater discharge to the environment was severe with the economic development. Organic pollutant in the wastewater discharged from the chemical product processes is always complicated, noxious and hard to be subtracted. Therefor, new chemical wastewater treatment processes and techniques with the high efficiency and low costs have become the research emphases of the wastewater treatment area. The basic characteristics and treating conditions of chemical wastewater were presented, and the new progress and trend of the processes were overviewed. In the end, it also put forward suggestions to the research point. Based on the results of research and application, the chemical wastewater treatment technique was suggested to solve the following local problems： the high investment and the cost of treatment, the experiment and research divorced from the practice and application, deal suceessfully with through the big variety of the concentration and composition of chemical wastewater quality.