Steelmaking dust is one of the wastes which are produced by ironworks. This kind waste a byproduct mainly in electric arc furnace. Zinc content different and depends on charge processed The basic technology used for recycling steelmaking Waelz process, however, it requires large amount reducer generates lot needs to be stored. First stage this study was analyze if safe exposed atmospheric condi...

Mining activities specifically Coal have been long testified to be one of the major contributing factors environmental crisis, with Acid Mine Drainage (AMD) as leading indicators. The purpose this study was assess potential AMD generation from neutralized coal mining tailings. In order achieve ultimate objective study, analysis chemical composition and mineral content tailings using XRF (X-Ray ...

New alternative wood preservatives contain higher levels of copper (Cu) which can promote aquatic toxicity in natural water systems. Earlier work focused on evaluating toxicity using laboratory generated leaching solutions. In this study, the impact on preservative leaching and aquatic toxicity from treated wood products was evaluated using natural surface waters including waters from two river...

A promising in situ remediation alternative for metal oxyanions such as arsenic, chromium, and selenium is microbial reduction to insoluble oxide, sulfide, or elemental phases. An important question that must be addressed before this technology can be implemented is the stability of these phases. This paper describes an investigation of the stability of reduced arsenic and sulfide precipitates ...

Arsenic is a poisonous element and its super mobility can pose major threat to the environment human beings. Disposed arsenic-bearing waste or minerals over time may release arsenic into groundwater, soil then food chain. Consequently, safe landfill deposition should be carried out minimize bleeding. Cement-based stabilization/solidification glass vitrification are two important methods for imm...

The vitrification of zinc-hydrometallurgy wastes, electric arc furnace dust (EAFD), drainage mud, and granite mud was shown to immobilize the hazardous components in these wastes. Batch compositions were prepared by mixing the wastes with glass-cullet and sand to force the final glass composition into the glass forming region of the SiO2-Fe2O3-(CaO, MgO) system. The vitrification was carried ou...

To assess the chemical stability of sludges generated by neutralizing acid rock drainage (ARD) with alkaline reagents, synthetic ARD was treated with hydrated lime (batch and high-density sludge process), limestone, and two proprietary reagents (KB-1 and Bauxsol). The amorphous metal hydroxide sludge produced was leached using deionized water, U.S. EPA methods (toxicity characteristic leaching ...