Intensifying the Cleaning of Emulsion- and Oil-Bearing Waste Water from Rolled-Product Manufacturing by Electroflotation

被引：0

作者：

E. A. Maksimov

A. A. Ostsemin

机构：

[1] Intrai Company,

[2] Russian Presidential Academy of the National Economy and Public Service,undefined

来源：

Metallurgist | 2015年 / 58卷

关键词：

intensification of primary and secondary cleaning; emulsion- and oil-bearing waste water from rolling-mill operation; electroflotation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

It is shown that it is possible to intensify the cleaning of emulsion- and oil-bearing waste water from rolling-mill operation. The water is given a secondary treatment in an electrical flotation unit that automatically controls current density and electrode spacing. Operating regimes for the unit are developed for the secondary cleaning of emulsion-bearing waste water from cold-rolling mills after primary cleaning in horizontal settling tanks with reagent FeCl2, a small amount of H2SO4, and spent pickling solution. The optimum regime for use of the flotation unit for the secondary cleaning of oil-bearing waste water from hot-rolling mills is determined. A cleaning level of 94–95% is achieved for waste water in which the initial content of petroleum products is 100 mg/liter.

引用

页码：945 / 949

页数：4