This study investigates the liquid-phase adsorption behavior of phenol form waste water by using slag, which is one of the solid wastes from steel refining process. This adsorption technique is one green process based on using the slag waste as adsorber for removing organic contaminants from waste water. First, the raw slag was chemically treated by different concentrations of sulfuric acid, an...

About 40 million tons of steel slag a year, which is the by-product of iron and steel manufacture, is generated in Japan and the almost all the slag is reused for the materials, e.g. cement raw material, road base course material and civil engineering material, by effectively utilizing its characteristics such as chemical components and mechanical properties. Most of its purposes of uses are to...

The conventional cyanide leaching process is used to extract gold from a high copper concentrate. Because the associated minerals consume sodium in large quantities, cost of reagents and economic benefit not ideal. At same time, number tail slag are produced, which brings series environmental problems. In order solve problems caused by excessive consumption cyanogen slag, feasibility thiosulfat...

The present study aimed to analyze the application of waste material from copper production– slag (ŻŻL) as filler for composites based on high-density polyethylene (HDPE). Copper was introduced in amounts 1–20 wt%, and its influence appearance (color analysis), chemical structure (Fourier-transform infrared (FTIR) spectroscopy), microstructure (optical microscopy), well static (tensile tests) d...

In this study, industrial lithium-ion battery (LIB) waste was treated by a froth flotation process, which allowed selective separation of electrode particles from metallic-rich fractions containing Cu and Al. the experiments, recovery rates ~80 98.8% for cathode active elements (Co, Ni, Mn) graphite were achieved, respectively. The recovered metals fraction subsequently used in high-temperature...

A large volume of slag is annually produced by the ferrochromium industry and the slag has historically been dumped without any pollution prevention, control or remediation measures. The slag at the ASSMANG Chrome Machadodorp (ACM) plant in Mpumalanga (where this case study was conducted) contains elements that may pose a significant threat to human life and the environment. The objectives of t...

Abrasive blasting materials, such as coal slag garnet and copper slag, are often used for cleaning metal surfaces to remove rust and to prepare a surface before the application of a coating. The pre-blast and post-blast (spent) abrasive materials contain traces of heavy metal constituents such as Cr, Mn, Ni, Pb Fe, and Ba. Hence, the health risk associated with the resultant particulate emissio...

The noxious potential of metallurgical tailings from the Ag/Pb/Zn/Cu mining district of Sta. María de la Paz (Mexico) is ascertained via the chemical characterization of slag material. Batch experiments using various extraction solutions (e.g. natural rainwater, water rich in humic substances, ammonium nitrate solution) revealed information on the dissolution behaviour of the elements Fe, Mn, N...

Elementary and phase composition as well as micrography of the electric furnace slag were examined. The base of slag is made from phases containing Fe, Mn and Ca. Grains differ in size and shape, they cling together to form bigger or smaller agglomerates, depending on separated fractions. Relative distribution of identified phases in separated fractions is presented and the possibility of phase...