This study compared the environmental impacts of composting yard wastes in windrows with using them in place of soil as alternative daily cover (ADC) in landfills. The Life Cycle Assessment was made using the SimaPro LCA software and showed that the ADC scenario is more beneficial for the environment than windrow composting. ADC use is also a less costly means of disposal of yard wastes. This f...

Plasma pyrolysis integrates thermo-chemical properties of plasma using pyrolysis process for safe disposal of solid wastes. It is an environment friendly technology to generate valuable byproducts by converting municipal solid waste, biomedical waste and hazardous wastes at 800-1000°C. Plasma Pyrolysis of plastic wastes generates pyrolysis gas, which can be utilized for energy recovery via diff...

Dr. Waldman is Professor of Dental Health Services, School of Dental Medicine, SUNY at Stony Brook; Dr. Perlman is Global Clinical Director, Special Olympics, Special Smiles and Associate Clinical Professor of Pediatric Dentistry, Goldman School of Dental Medicine, Boston University. Direct correspondence to Dr. H. Barry Waldman, Professor of Dental Health Services, Department of General Dentis...

The concept of microbiological leaching have played a greater role to recover valuable metals from various sulfide minerals or low grade ores during the middle era of twentieth century and that continued till the end of the century. Slowly, due to depletion of ore/minerals, and implementation of stricter environmental rules, microbiological leaching process has been shifted for its application ...

The objective of the work was to provide a method to predict CO2 and NH3 yields during composting of the biodegradable fraction of municipal solid wastes (MSW). The compostable portion of MSW was simulated using three principal biodegradable components, namely mixed paper wastes, yard wastes and food wastes. Twelve laboratory runs were carried out at thermophilic temperatures based on the princ...

This investigation was conducted to evaluate experimental determination of specific gravity (Gs) of municipal solid waste (MSW). Water pycnometry, typically used for testing soils was adapted for testing MSW using a large flask with 2000 mL capacity and specimens with 100-350 g masses. Tests were conducted on manufactured waste samples prepared using US waste constituent components; fresh waste...

Safe amendment rates (the predicted no-effect concentration or PNEC) of seven organic wastes were estimated from the species sensitivity distribution of a battery of soil biota tests and compared with different realistic amendment scenarios (different predicted environmental concentrations or PEC). None of the wastes was expected to exert noxious effects on soil biota if applied according eithe...

Department of Restorative Dentistry, Health Sciences Center, Federal University of Paraíba – UFPB, João Pessoa, PB, Brazil Department of Rsrtorative Dentistry, Goiania School of Dentistry, Federal University of Goias – UFG, Goiania, GO, Brazil Operative Dentistry and Dental Materials Division, Uberlândia School of Dentistry, Federal University of Uberlândia – UFU, Uberlândia, MG, Brazil Departm...

1 Zorica Nedic, University of South Australia, School of Electrical and Information Engineering, Mawson Lakes, S.A. 5095, [email protected] 2 Jan Machotka, University of South Australia, School of Electrical and Information Engineering, Mawson Lakes, S.A. 5095, [email protected] 3 Andrew Nafalski, University of South Australia, School of Electrical and Information Engineering, M...