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1 1999

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Makarov V.M., Ładygina O.W., Kraskow W.W., Petruchno L.A.

Ekologia i Technika

1999

R. 7, nr 2

46-49

Sludge (galvanic slime) a suspension or a paste, contains heavy metl hydroxides, and it is a highly dangerous waste. It entails construction of expensive special repositories, otherwise a socondary contamination of surface and subsoil water can occur. Yet the phisical and chemical properties of the ingredients of galvanic slime make using them possible only after appropraite processing, as pigment in varnish and paint compositions, magnetic materials and one of the components of rubber. Among other trends in electroplating works sludge utilization processing the sludge by methods worked out by the Labour Protection and Nature Preservation Department of the Yaroslavl State Technical University in cooperation with the private enterprise 'Ecoproject' deserves particular consideration. According to this technology a galvanic slime processing shop (scientific and production enterprise 'FEROS') was created. The cost of the product ranges $200 - 1000 per ton. It can replace pigments, the price of which fluctuates from $400 to more than $2625. Yaroslavl Satte Technical University and the private enterprise 'Ecoproject' propose cooperation to all the companies and enterprises interested in utilization of galvanic works sludge. 'Ecoproject' canhelp to organize the wprk and tailor iy to the customer's needs. Cooperation in this field will contribute to compensation of the expenditures for carrying out investigations, developing projects and mouting installations.