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一、概述 轧钢含油废水主要来自轧钢,冷却及液压设备的渗漏。一些轧钢厂的含油废水由于未经处理就任其排放,周围环境遭到严重污染,也给工厂带来了严重的经济损失。例如某钢管厂的废水产量每小时达3000立方米,废水中的含油量高达200毫克/升,同时还含有大量的氧化铁皮等其它物质。 用于武汉钢铁公司的1700毫米轧机废水处理的日本制造的油水分离器和法国国营埃尔夫·阿奎坦石油子公司(SAPEC)的亲油滚筒是利用油水比重的差异,使大粒径的油株上升到水面形成浮油层
First, an overview Rolling oil wastewater mainly from the rolling, cooling and hydraulic equipment leakage. Oily wastewater from some rolling mills is discharged as it is left untreated and the surrounding environment is seriously polluted, bringing serious economic losses to the factory. For example, a steel plant wastewater production per hour up to 3,000 cubic meters, wastewater oil content up to 200 mg / l, but also contains a lot of iron oxide skin and other substances. Japan-made oil-water separators for the 1700mm mill waste water treatment of Wuhan Iron and Steel Company and SAPEC’s lipophilic drums, which make use of the difference in oil-water specific gravity, The oil rose to the surface of the oil layer formation