increasing in concentration of heavy metals such as lead, cadmium, nickel, chromium and zinc cause considerable harmful effects on soil and environment. these elements are also hazardous to health of humans and wildlife. petrochemical plants and refineries pollution increase the amount of carcinogenic and tratogenic compounds in environment. the main goal of recent paper is the studying of soil...

This study examines a modified permeable pavement system (PPS) for enhanced heavy metal attenuation from stormwater. A laboratory model consisting of six PPS columns has been tested under varying rainfall intensities. The structures are arranged based on the following hypotheses enhancing attenuation: (i) addition natural zeolite layer in subbase promoting by adsorption and ion exchange; (ii) b...

Heavy metals pollution has become a more serious environmental problem in the last several decades as a result releasing toxic materials into the environment. Various techniques such as physical, chemical, biological, advanced oxidation and electrochemical processes were used for the treatment of domestic, industrial and agricultural effluents. The commonly used conventional biological treatmen...

BACKGROUND, AIM AND SCOPE Water quality impairment by heavy metal contamination is on the rise worldwide. Phytoremediation technology has been increasingly applied to remediate wastewater and stormwater polluted by heavy metals. MATERIALS AND METHODS Laboratory analysis and field trials were conducted to evaluate the uptake of metals (Al, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, and Zn)...

Detention ponds and constructed wetlands have proven to be effective in reducing peak stormwater runoff volume and flow, and recent interest has extended to utilizing them to improve stormwater runoff quality. A review of stormwater runoff studies indicated that lead, zinc, copper, cadmium, phosphorus, and chloride are contaminants of primary concern. In laboratory settings, the uptake of conta...

The contribution of atmospheric deposition to emissions of trace metals in stormwater runoff was investigated by quantifying wet and dry deposition fluxes and stormwater discharges within a small, highly impervious urban catchment in Los Angeles. At the beginning of the dry season in spring 2003, dry deposition measurements of chromium, copper, lead, nickel, and zinc were made monthly for 1 yea...

introduction the problem of solid waste management is one of the most critical environmental issues because of rapid population and economic growth, urbanization, and industrialization. furthermore, global attitudes are bent on accessing sustainable agriculture and conserving a clean and green environment. vermicomposting is a process to convert organic waste by the use of earthworms to produce...

PCB and Heavy Metal Soil Remediation, Former Boat Yard, South Dartmouth Massachusetts. Michael E. Martin & Marc J. Richards, Tighe & Bond Consulting Engineers. Heavy metals have been added to marine paint for more than 100-years to protect boats from biological, chemical and physical degradation. Polychlorinated biphenyls (PCBs) were added to marine paint starting in the 1940’s to give the pain...