SHREDDER RESIDUES: CHARACTERISATION AND MANGEMENT AIMED AT RESOURCE RECOVERY
The main objective of the study presented in this paper was to assess the need for and feasibility of pre-treatment of shredder residue (SR) prior to landfilling. Since such treatment will imply improved recovery of materials and/or energy, many of the results of the study are also relevant in the context of resource recovery. SR from Denmark has been characterised with respect to composition and leaching properties, and various treatment options have been discussed and assessed. The shredder residues generally comply with the EU leaching criteria for acceptance at landfills for hazardous waste and at landfills for non-hazardous waste accepting stable, non-reactive hazardous waste, except for dissolved organic carbon, DOC. The optimal SR management option in terms of resource recovery, environmental impact and economy appear to be mechanical separation with extensive materials recovery or improved materials recovery integrated into the shredding operation followed by landfilling (if the residual waste stream is not suited for combustion) or co-incineration with MSW (if the residual waste stream is suited for combustion). Landfilling should be developed in the direction of increased sustainability and a reduced aftercare period, and the proportion of SR co-incinerated with MSW (with effective energy recovery) should probably not exceed 5 to 10 ％ (by mass) of the total feedstock to the incinerator. The bottom ash from the incinerator should be utilised if possible, and the air pollution control residues may require treatment prior to landfilling. If mechanically treated SR is classified as hazardous waste and destined for landfilling or if the EU WAC for landfilling otherwise apply, care should be taken to ensure that TOC (and DOC) are sufficiently low to meet the criteria.
Shredder Residues Characterisation Leaching Treatment Resource Recovery Landfilling Waste Management Mechanical Treatment Co-combustion
O. HJELMAR
DHI, H(o)rsholm, Denmark
国际会议
北京
英文
992-997
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）