Printed circuit board (PCB) waste is generally dumped as a landfilling or treated pyrometallurg ically, which consumes enormous power, generates hazardous gases and also destroys valuable PCB components. For recycling of the components, they must be separated from the printed circuit boards which is a cumbersome task. For its simplification, the rate of d issolution of solder with acids like Hy...

A modified version of the multi-criteria decision aid, ELECTRE III has been developed to account for uncertainty in criteria weightings and threshold values. The new procedure, called ELECTRE-SS, modifies the exploitation phase in ELECTRE III, through a new definition of the pre-order and the introduction of a ranking index (RI). The new approach accommodates cases where incomplete or uncertain...

Cathode ray tube funnel glass is an environmentally problematic relict of old television sets. In particular, landfilling of this material is strongly discouraged because of its high lead content. However, recovery of this toxic lead could prevent its release into the environment and allow its reuse. In this research, lead was separated from the glass matrix by a chloride volatilization process...

In most cases, the anammox process is used for nitrogen removal from reject water coming from dewatering of digested sludge. However, there are more industrial streams suitable for treatment by partial nitritation/anammox process. The landfill leachate may be a good example of such wastewater. Generally, landfilling is the most used solution for treatment of urban solid wastes. The problem with...

EASEWASTE (Environmental Assessment of Solid Waste Systems and Technology) is a new LCA-based decision support tool within waste management. The model, which is developed by the Technical University of Denmark, calculates waste flow, resource consumption and environmental emissions from waste management systems and provides a complete impact assessment in terms of potential global warming, ozon...

Copper flotation waste is an industrial by-product material produced from the process of manufacturing copper. The main concern with respect to landfilling of copper flotation waste is the release of elements (e.g., salts and heavy metals) when in contact with water, that is, leaching. Copper flotation waste generally contains a significant amount of Cu together with trace elements of other tox...

Landfilling although is a popular and economical method of solid waste disposal is associated with the risk of environmental degradation due to inherent problem of leachates. Leachate continues to be of concern especially when it comes into contact with ground water and surface water. Thus a proper treatment of leachate is essential prior to discharge of leachate into surface and subsurface env...

Pilot-scale experiments simulating bio-active landfilling conditions were conducted to evaluate the effects of operating conditions on the kinetics and overall quantities of methane production from anaerobic digestion of real municipal solid waste. Several modalities of leachate injection and pretreatment operations of the waste were studied using six Landfill Simulation Reactors, which were in...

principal objective of this project was to identify and analyze why food waste occurs at Fort Jackson, as well as recommend alternative ways to minimize the waste generated at this installation. incineration, and landfilling] were analyzed primarily at Fort Jackson, with alternative disposal options investigated at both Fort Jackson and Parris Island. The following research questions acted as a...