background and aims: chromium is considered as one of the important environmental pollutants. there is high concentration of chromium in the wastewater of electroplating industries. magnetic iron nanoparticles are used to control and eliminate heavy metals from industrial effluents through the mechanisms of adsorption, ion exchange and electro-static forces. the aim of this study was to evaluat...

Wastewater discharged from metal-finishing processes usually contains cyanide, a hazardous substance that is used extensively in the surface finishing industry. In the present study, a synthetic solution resembling the contaminated wastewater was chemically treated using ferrous sulfate. This simple one-step process was applied successfully to remove cyanide from metal finishing wastewater. The...

With the development of social economy, environmental protection projects have attracted wide attention from all walks life, especially in industrial development, which can pay to problems. Inorganic chemicals important value industry and be well used for scientific treatment wastewater. It mainly includes specific application inorganic printing dyeing wastewater, heavy metal papermaking fur, s...