Recent studies of leachate induced toxicity have mainly focused on crude leachates collected once from the landfill site, while little attention has been paid to the changes in toxicity resulting from the varying leachate concentration with respect to seasonal variation. The present study deals with the toxicological effects of municipal landfill leachate on Vicia faba. Leachate samples were co...

Alkaline copper quaternary (ACQ) is a widely used wood preservative. This study evaluated leachate volume generation and contaminant leaching from ACQ-treated lumber during rainfall events in comparison to untreated lumber. The influences of wood preservation with ACQ, lumber size, and weather on leachate generation ratio and contaminant concentrations in wood leachate were investigated with fo...

soil compaction has become a widespread problem in the world and it is considered as one of the main factors affecting land degradation in arid and semi-arid agricultural land. the aim of this study was to investigate the effects of soil compaction on soil carbon and nitrogen sequestration, physical (aggregate stability, saturated soil moisture content, bulk density, and porosity) and chemical ...

this study was conducted to evaluate the effect of municipal waste compost leachate (mwcl) ‎on capsicum annum plant and chemical properties of a clay loam soil with five ratios of mwcl to ‎irrigation water (0, 20, 40, 60 and 100 percent) treatments each with three replications by using a ‎completely randomized factorial design under greenhouse condition. electrical conductivity, ‎organic matter...

Management regimes of varying types and intensities can have profound impacts on grassland soil quality. Plus, there has recently been increased interest in finding soil quality indicators that are reflective of historical and current land management. We surveyed soil quality of privately owned grasslands in northeastern Kansas differing in their cultivation histories and current land-use (cool...

Laboratory scale studies were conducted to investigate the feasibility of Industrial by-products as potential alternative medium to conventional gravel in the drainage layer of leachate collection system as permeable reactive barriers (PRBs) for landfill leachate treatment. Industrial by-products were used to treat effectively the landfill leachate, which is an innovative in-situ remediation te...

ii ACKNOWLEDGEMENTS The laboratory research and completion of this senior project report would not have been possible without the help of many faculty members of Cal Poly, San Luis Obispo. First, I would like to thank Dr. Burgoa for presenting me with the opportunity to conduct a senior project on this topic. Second, a sincere thank you is due to Craig Stubler, the laboratory technician of the ...