Abstract: Adsorption of cadmium by two powdered activated carbons (PAC) is investigated in single and binary adsorbent systems. Both PACs are effective in removing cadmium from solution. Cadmium adsorption increased with increased ...

Abstract: The effects of pH, alkalinity, and mass transfer efficiency on the removal of arsenite [As(III)] by zero-valent iron (ZVI) were evaluated in this study. The optimum pH range for removal of As(III) was found to be between ...

Abstract: The feasibility of an offline biological regeneration (OBR) process for granular activated carbon is investigated. A predictive model is presented and validated with data collected from bench‐scale experiments. Based on ...

Abstract: Recently, calcium magnesium acetata (CMA) was identified by the Federal Highway Administration as a potentially suitable, noncorrosive road deicer substitute for sodium and calcium chloride. Research on the environmental ...

Abstract: Adsorption of heavy metals onto activated carbon has been described using the surface‐complex‐formation (SCF) model, a chemical equilibrium model. The SCF model requires a knowledge of the amphoteric nature of activated ...

Abstract: A laboratory investigation was conducted to determine the relative importance of the physiological state of the reactor population and biomass concentration on mitigating short-term toxic shocks. The studies were conducted ...

Abstract: A bench-scale study of seven Pb-contaminated soils from actual sites was undertaken to determine the feasibility of soil washing to meet cleanup goals. In addition, soil characteristics and operational factors affecting ...

Abstract: Improperly functioning soil absorption systems are often cited as sources of groundwater contamination. Clogging of the infiltration surfaces and uneven distribution of wastewater along the length of the trench are believed ...

Abstract: Soils contaminated with lead and copper from three industrial-waste sites were characterized for particle-size distribution, heavy metal (Pb, Cu) content by particle size, sequential extraction for metal speciation, scanning ...