A feasibility study was conducted using slags from six grey-iron foundries to evaluate their potential as reactive media for permeable reactive barriers (PRBs) to remove aqueous trichloroethylene (TCE) from groundwater. Batch tests indicated that the slags exhibit varying degrees of reactivity ranging from nonreactive to reactivity comparable to that obtained with commercially available granula...

Many industrial products that would traditionally be disposed of are now being recycled to reduce environmental pollution and conserve resources. Various techniques for the recovery, processing, and reuse of materials have been developed. Recently, the safety of reusing such materials has been investigated. Waste materials such as city garbage are generated in great quantities. In Japan, most g...

Granulated iron silicate slag, a by-product of pyrometallurgical copper extraction, has excellent properties for construction applications. Slag modification with CaO enhances the application regarding pozzolanic reactivity, potentially extending slag use in future. The slags’ short-term leaching behavior already been investigated promising results, while long-term effects are less studied. The...

The article presents the results of research on influence lead production slag environment and ecology city. Due to open storage slags, an excess maximum permissible levels (MPL) was established: near plant, concentration in soil exceeds 3000 mg/kg, while MPL is 3.2 mg/kg. data analyzes obtained by methods scanning electron microscopy X-ray microanalysis, performed a microscope (SEM), as well f...

Over the past decades, the steel production has increased and, consequently, the higher volumes of by-products and residues generated have driven to the reuse of these materials in an increasingly efficient way. In recent years new technologies have been expanded, and some of them are still under developing, in order to improve the recovery rates of slags. On this subject material separation te...

Copper slag (CS) is an abrasive blasting grit made of granulated slag from metal smelting processes. As copper slags are known to be waste material and cause a lot of environmental problems, it would be a good idea to use them in different sections of industry such as pavement construction. On the other hand, in order to save energy and reduce the amount of pollutants re...

Industrial Cu-smelters still suffer from metal rich droplet losses in slags due to insufficient phase separation. One important factor in the mechanical entrainment of metal rich droplets in slags is their attachment to solid spinel particles, which are also present in the slag phase. Consequently, these particles hinder the settling of the metal droplets. In order to improve phase separation i...

The article deals with the problems of slags processing from copper-smelting production, both current production and those which had been accumulating over many years enterprises' activity in heaps (stale). There are data about possible methods slag processing. It is proposed a technology for joint stale Urals pyrite cinders (waste sulfuric acid) - smelting obtain poor matte, into copper precio...