A preliminary survey of an arsenic contaminated site from an abandoned copper smelting facility and feasibility study of using solidification/stabilization (S/S) process to treat the contaminant waste were undertaken. It was found that the waste, located in the three-flue gas discharge tunnels, contained 2-40% arsenic. The pH of the contaminated waste is extremely low (ranging from 1.8 to 3.6)....

Recent revision of the arsenic in drinking water standard will cause many utilities to implement removal technologies. Most of the affected utilities are expected to use adsorption onto solid media for arsenic removal. The arsenic-bearing solid residuals (ABSR) from adsorption processes are to be disposed of in nonhazardous landfills. The Toxicity Characteristic Leaching Procedure (TCLP) tests ...

Arsenic is a naturally occurring element, present in soil, ground water and plants. Regions with high geological occurrence of inorganic arsenic have been identified in particular in Asia and other non-European countries. In Europe, environmental arsenic levels are rather low, with the exception of distinct geological or industrial areas. Arsenic is a metalloid, displaying different valences (-...