Showing papers in "Waste Management in 2008"

TL;DR: An overview of data published during the last five years on the immobilization of one metalloid, As, and four heavy metals, Cr, Cu, Pb and Zn, in soils, finds that Zn can be successfully immobilized in soil by phosphorus amendments and clays.

TL;DR: The available information on various aspects of sewage sludge application on soil fertility and consequent effects on plant production are reviewed to explore the possibility of exploiting this byproduct for agronomy and horticulture.

TL;DR: In the present study, an attempt has been made to provide a comprehensive review of the characteristics, generation, collection and transportation, disposal and treatment technologies of MSW practiced in India.

TL;DR: The effect of recycled and waste plastic on bulk density, air content, workability, compressive strength, splitting tensile strength, modulus of elasticity, impact resistance, permeability, and abrasion resistance is discussed in this paper.

TL;DR: It has been shown that models in which hydrolysis is coupled to the growth of hydrolytic bacteria work well at high or at fluctuant organic loading, and new developments in spatially distributed models are considered fundamental to provide new insights in this complex process.

TL;DR: Ulasonic analysis reveals large reductions in the ultrasonic modulus and high sound absorption for tire-rubber concrete, and a significant decrease in the brittle behavior of concrete with increasing rubber content is also demonstrated using nonlinearity indices.

TL;DR: This study insures that reusing waste plastic as a sand-substitution aggregate in concrete gives a good approach to reduce the cost of materials and solve some of the solid waste problems posed by plastics.

TL;DR: A fuzzy TOPSIS based methodology is applied to solve the solid waste transshipment site selection problem in Istanbul, Turkey and the criteria weights are calculated by using the AHP.

TL;DR: Results indicate that a number of constraints, namely: lack of interest from clients; attitudes towards waste minimisation; and training all act as disincentives to a proactive and sustainable implementation of waste reduction strategies during the design process.

TL;DR: This paper addresses the siting of a new landfill using a multi-criteria decision analysis (MCDA) and overlay analysis using a geographic information system (GIS) that can accommodate new information on the landfill site selection by updating its knowledge base.

TL;DR: The objective of this paper is to review previously published models of municipal solid waste generation and to propose an implementation guideline which will provide a compromise between information gain and cost-efficient model development.

TL;DR: This study adequately shows that household solid waste can be converted from burden to resource through segregation at the source, since people are aware of their role in this direction and a mechanism to assist them in this pursuit exists and the burden is distributed according to the amount of waste generated.

TL;DR: This study was carried out using chemolithotrophic and acidophilic bacteria Acidithiobacillus ferrooxidans, which utilized elemental sulfur and ferrous ion as the energy source to produce metabolites like sulfuric acids and ferric ion in the leaching medium that helped dissolve metals from spent batteries.

TL;DR: This work reviews strategies for the management of municipal solid waste incineration (MSWI) residues, particularly solid particles collected from flue gases, focusing upon management strategies used in various countries, waste composition, treatment processes and possible applications.

TL;DR: The extensive compilation of compounds detected can be used to select compounds to search for in future studies, and is suggested using leachate sediments as a matrix for detecting hydrophobic compounds and reflecting on the degradation phase when evaluating results from monitoring studies.

TL;DR: This research focused on using crumb tires as a replacement for a percentage of the local fine aggregates used in the concrete mixes in Jordan and concluded that modified concrete would contribute to the disposal of the non-decaying scrap tires.

TL;DR: The material flow of secondhand/scrap electronic devices into Nigeria, the current management practices for e-waste and the environmental and health implications of such low-end management practices are reviewed.

TL;DR: Despite recent improvements in the operation of the existing dumpsite, a properly sited engineered landfill should be constructed with operation contracted to the private sector, and Enforcement of waste management legislation and a proper policy and planning framework for waste management are required.

TL;DR: The results have indicated that the systems under investigation are suited for the manufacture of pre-formed building blocks at room temperature.

TL;DR: In all wastes, significant correlations were found between easily determined parameters, such as pH, electrical conductivity and total organic matter, and most of the parameters studied.

TL;DR: The sources and generation of WEEE in China are identified, and WEEE volumes are calculated, and the results show that recycling capacity must increase if the rising quantity of domestic WEEE is to be handled properly and management and collection costs significantly influence current WEEE management.

TL;DR: The results indicate that cement production can be a feasible alternative for MSWI ash management and it is also evident that the addition of either fly ash or bottom ash did not have any effect on the compressive strength of the clinker.

TL;DR: Co-digestion of sludge from grease traps and sewage sludge was successfully performed both in laboratory batch and continuous pilot-scale digestion tests, and it was seen that the grease trap sludge increases the methane yield without increasing the sludge production.

TL;DR: It is found that waste segregation, as well as infectious waste treatment prior to disposal, has to be conducted properly by the hospital management, especially when scavenging takes place in landfill sites in developing countries.

TL;DR: The possible three-stage processing of SSA, whereby more than 90% of phosphorus can be extracted to make an adequate phosphate fertilizer, is proposed, which was proven to be equal in its plant uptake efficiency.

TL;DR: Changes in soil microbial properties appeared to occur more rapidly than most chemical properties, suggesting that soil microbial processes can function as more sensitive indicators of short-term changes in soil properties due to amendment of organic wastes.

TL;DR: This paper investigates the effectiveness of the existing implementation of the WMP method in the Hong Kong construction industry and shows that "Propose methods for on-site reuse of materials" and "Proposed methods for reducing waste" are the main benefits gained from the implementation.

TL;DR: Investigation of the utilization potential of several organic residues in clay bricks in Turkey found that sawdust, tobacco residues, and grass can be utilized in an environmentally safe way as organic pore-forming agents in brick-clay.

TL;DR: The suggested maturity parameter values and metal concentrations of composted animal manures can provide better understanding of maturation process of animal manure compost.

TL;DR: It is concluded that it is possible to use tyre pyrolysis oil in diesel engines as an alternate fuel in the future.