Construction wastes have become the major source of solid wastes in Hong Kong. Thousands of tonnes of solid wastes are produced every year from construction and demolition activities. Increasing generation of these wastes has caused significant impacts on the environment and aroused growing public concerns. Therefore, the minimization of construction wastes has become a pressing issue. This pap...

Natural rubber (NR) is used in many applications; ranging from automobile through health to food industry. However, unfilled NR has poor properties. The purpose of this study was evaluate the effects carbon black (CB), carbonized and un plant wastes on swelling behavior NR. were corn cob husk (CC), cocoa pod (CPH) empty palm fruit bunch (EPFB). vulcanisates with different organic fillers prepar...

the management of hospital wastes is of high importance, because of their infectious and hazardous potential. this is a cross-sectional study based on questionnaire, interview, observation and meetings performed in major mashhad hospitals in 2009. weight and per capita waste production were determined. moreover, the status of production, separation, storage, collection, treatment, transportatio...

A brief overview is given of the sources, characteristics, and toxic constituents of municipal solid wastes. Several methods are presented for handling, treating, and disposal of solid wastes. Monitoring the landfill site is necessary; there has been a trend to recognize that municipal solid wastes may be hazardous and to provide separate secure handling, treatment, and disposal for their dange...

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...

Biomass wastes are abundant around us. They renewable and inexpensive. Product manufacturing from resources has caught increasing interest recently. Activated carbon preparation biomass resources, including various trees, leaves, plant roots, fruit peels, grasses, is a good example. In this paper, an overview of activated production will be given. The first part on the processing technologies. ...