O_3-BAC工艺去除水源水中有机物的研究进展

臭氧生物活性炭(O3-BAC)组合工艺是利用臭氧将水中难降解的大分子有机物氧化为小分子有机物,经生物活性炭吸附降解而有效去除污染物的新型工艺。分析臭氧投加量、臭氧反应塔填料和滤料材质、空床接触时间、水温及反冲洗对该工艺的影响及其研究现状。目前,O3-BAC技术在试验研究和工程实际中,有一些机理性的问题还没有研究清楚,影响工艺的运行和控制。因此今后的主要发展方向是对臭氧投加量和反冲洗的机理进行深入研究。

Research progress on O3-BAC process removing organic compounds rom source water

Ozone-biological activated carbon(O3-BAC) is a novel process with which the pollutants in water can be removed effectively, it using ozone to oxidize hard-degradable macromolecule organic compounds to small molecule organic compounds, and then, adsorbing and degrading them through biological activated carbon.The influences of ozone dosage, padding of ozone reactor, filter material, empty bed contact time, water temperature and backwashing on the said process and the research status thereof were analyzed.At present, as some problems of mechanism in experimental research and engineering practice of the O3-BAC process have not been studied clearly, the operation and the control of the process are affected.Therefore, the main development direction of the said process in the future is deep research on ozone dosage and backwashing mechanism.