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

Autor:	E. A. Maksimov, A. A. Ostsemin
Rok vydání:	2015
Předmět:	Secondary treatment Bearing (mechanical) Waste management business.industry Chemistry Metals and Alloys Condensed Matter Physics law.invention Petroleum product Wastewater Settling Mechanics of Materials law Reagent Pickling Emulsion Materials Chemistry business
Zdroj:	Metallurgist. 58:945-949
ISSN:	1573-8892 0026-0894
DOI:	10.1007/s11015-015-0022-8
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ace4abe67e9224ae424c6b654b633b4 https://doi.org/10.1007/s11015-015-0022-8 Zobrazit plný text záznamu Plný text ve formátu PDF