Affiliation:
1. Ural Federal University named after the First President of Russia B. N. Yeltsin
Abstract
The problem of processing slimes of galvanic production, formed as a result of neutralization of technological solutions and wastewater containing heavy non-ferrous metals is considered. At present, sludges are transported to disposal area and are not used in any way. Typically, such sludges contain significant amounts of chromium and nickel, which creates environmental hazard. Investigated sludge of Dimitrovgrad Automobile Units Plant (Russia) contains up to 6.6% Ni and up to 7,4% Cr. The hydrometallurgical process is proposed to treatment of these sludges. Solutions of sulfuric acid, ammoniaс chloride and Trilon B were used as lixiviants. It is shown that when using a solution of sulfuric acid with pH=1,5, extraction of up to 93,3% Cu, 70,2 Ni, 90,3 Zn is achieved.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference23 articles.
1. J.M. Magalhães, J.E. Silva, F.P. Castro, J.A. Labrincha, Role of the mixing conditions and composition of galvanic sludges on the inertization process in clay-based ceramics, Journal of Hazardous Materials, 106B (2004) 169-176.
2. B. Kazinczy, L. Kótai, I. Gács, K. Szentmihályi, Z. Sándor, S. Holly, Study of ammoniacal leaching of zinc from sludges containing iron and zinc hydroxides, Hungarian Journal of Industrial Chemistry, 28(3) (2000) 207-210.
3. L. Jean-Soro, F. Bordas, J.-C. Bollinger, Column leaching of chromium and nickel from a contaminated soil using EDTA and citric acid, Environmental Pollution, 164 (2012) 175-181.
4. M. Stanisavljevic, I. Krstic, S. Zec, Eco-technological process of glass-ceramic production from galvanic sludge and aluminium slag, Science of Sintering, 42 (2010) 125-130.
5. O.D. Ozdemir, A.K. Figen, S. Piskin, Utilization of galvanic sludge as raw material for production of glass, International Conference on Chemistry and Chemical Process, IPCBEE 10 (2011) 45-49.
Cited by
10 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献