Due to the enactment of a stricter drinking water standard for arsenic in the United States, larger quantities of arsenic will be treated resulting in larger volumes of treatment residuals. The current United States Environmental Protection Agency recommendation is to dispose spent adsorbent residuals from arsenic treatment into non-hazardous municipal solid waste (MSW) landfills. The potential...

Background Leachate is one of the most problems present in landfills, mainly due to large production and the ability to cause serious environmental damages next to these areas. An activated sludge process is commonly used for biodegrading organic contaminants in wastewater using a mixed population of microorganisms. This technology is consolidated for wastewater treatment, and recently has been...

The ®rst stage of leaf litter decomposition of two eucalyptus hybrids and Acacia auriculiformis was studied in laboratory experiments where the decaying leaves were leached with water. Although the litter of both the species were characterized by a high content of soluble compounds, little soluble organic matter of acacia litter was recovered in litter leachates. By contrast, soluble organic ma...

Abstract Nitrate is one of the water contaminants that mainly results from anthropogenic activities. The major causes nitrate contamination resources are activities such as animal or human waste, septic sewage systems, fertilizer application, concentrated farming, industrial and landfill leachates. These man-made primary sources in resources. a global issue has been increasing over time. Accord...

The main landfill in the city of Rabat (Morocco) is based on sandy material containing shallow Mio-Pliocene aquifer. presence a pollution plume likely, but its extent not known. Measurements spontaneous potential (SP) from soil surface were cross-referenced with direct measurements water table and leachates (pH, redox potential, electrical conductivity) according to available accesses, as well ...