Mihai Eftimie

A Study of the Industrial Waste Incorporating in Glass

The paper presents a study of the industrial waste incorporating in glass in order to obtain decorative colored glasses. The influence of iron and chromium oxides from waste amount is discussed. The samples properties such as density, thermal expansion coefficient and viscosity are investigated. Including different oxides of heavy metals (obtained from sludge that contains chromium and iron) into the vitreous system leads to the obtaining of several decorative glasses. Their colour varies widely, to the added quantity and the atmosphere of the work place.

Study on the Recycling of Borate Silicate Vitreous Waste with Capitalization of Heavy Metals Sludge

The paper follows both the national preservation and durable managing policy, as well as the European laws for the area of environmental protection (UE’s Directive 1999/31/EC – „landfill of waste” an the Council’s Directive no. 94/62/CE regarding the packaging and the packaging waste, amended by the Council’s Directive no. 2004/12/CE). The proposed technologies lead to reducing the need of both raw materials and energy in the process of obtaining various types of glass. The study proposes new ways of retrieving and eliminating waste that contains heavy metals alongside borosilicate shards. This paper also aims to increase the responsibility of the waste generating companies and to make the potential users more sensible.

Glazes Using E-Glass Fibers Waste

The main purpose of the paper is to present results of experiments concerning E-glass fibers waste with a content of 7% B2O3 for obtaining glazes for tableware ceramics, as well as to study the consequences upon fabrication technology. The results are encouraging and make possible the use of E-glass fibers waste for preparation of vitreous glazes.