摘要
为了解决炼油厂用水量大 ,水资源短缺的问题 ,采用活性炭深度处理生化处理水使其回用为循环冷却水补充水 ,以减少新鲜水用量。活性炭优良的吸附性能及其表面所形成的微生物膜 ,对炼油厂废水中的污染物质有良好的去除作用。实验采用活性炭吸附为主、砂滤为辅 ,过滤处理生化处理后出水 ,考查了以吸附法处理使水质主要指标达到循环冷却水补充水的可行性。结果表明 :活性炭吸附法辅以砂滤对炼油厂生化处理后出水中的COD、浊度、色度、挥发酚、总磷的吸附性能良好 ,对电导率、pH值有一定的调节作用 ,使废水中主要的水质指标达到循环冷却水补充水的水质要求。当处理后的出水中加适量的缓蚀阻垢剂、杀菌灭藻剂时 ,可使腐蚀速率、异养菌、铁细菌和硫酸盐还原菌等指标达到循环冷却水补充水的防腐蚀标准。当活性炭饱和时 ,利用臭氧再生活性炭 ,再生后活性炭的性能仍保持良好 ,此法具有再生工艺简单 ,再生效率高等优点。
In order to solve the problems of largely used water quantity and water resource scarcity in refinery, using activated carbon to treat further refinery biochemical wastewater so as to reuse it as circulating cooling water was studied. The excellent adsorption capability of activated carbon and its external microbe film have good effect of elimcnating pollutant in the wastewater. Using activated carbon adsorption as main process and aided by sand-filtering to treat oil refinery biochemically treatmented wastewater was studied, and the feasibility to reuse treated water as circulating cooling water was explored. Experiment results indicated that activated carbon assisted with sand filter has better ability to remove COD, turbidity, color, volatile phenol, total P amount in effluent, and has certain regulating effect on pH, electric conductivity it can make the main quality indexes of treated wastewater reach the requirements for circulating cooling supplement water. At the same time, when adding erosion inhibitor in water, the erosion rate of effluent can be lowered down to meet the standard of reuse. When the activated carbon loses its function, it can be recovered by using ozone. The method has many merits such as process simple, high efficiency and so on. This research suggests that using activated carbon in treating biochemically treatmented wastewater from oil refinery to get reusable circulating cooling water is feasible.
出处
《抚顺石油学院学报》
2000年第2期13-17,共5页
Journal of Fushun Petroleum Institute
关键词
炼油厂
深度处理
废水处理
生化处理
废水回用
Water reuse
Activated carbon
Circulating cooling water
Adsorption
Filter
