title: Biodegradation and flushing of MBT wastes.
abstract: Mechanical-biological treatment (MBT) processes are increasingly being adopted as a means of diverting biodegradable municipal waste (BMW) from landfill, for example to comply with the EU Landfill Directive. However, there is considerable uncertainty concerning the residual pollution potential of such wastes. This paper presents the results of laboratory experiments on two different MBT waste residues, carried out to investigate the remaining potential for the generation of greenhouse gases and the flushing of contaminants from these materials when landfilled. The potential for gas generation was found to be between 8% and 20% of that for raw MSW. Pretreatment of the waste reduced the potential for the release of organic carbon, ammoniacal nitrogen, and heavy metal contents into the leachate; and reduced the residual carbon remaining in the waste after final degradation from ∼320g/kg dry matter for raw MSW to between 183 and 195g/kg dry matter for the MBT wastes.
authors: Department of Civil Engineering, Aligarh Muslim University, Aligarh 202002, India. Electronic address: aasiddiqui.cv@amu.ac.in.
authors: A A
authors: AA
authors: Siddiqui
authors: D J
authors: DJ
authors: Richards
authors: W
authors: W
authors: Powrie
mesh_terms: D001673:Biodegradation, Environmental; D002118:Calcium / Q000032:analysis; D002244:Carbon / Q000032:analysis; D002712:Chlorides / Q000032:analysis; D005232:Fatty Acids, Volatile / Q000032:analysis; D005740:Gases / Q000032:analysis*; D008274:Magnesium / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis; D017672:Nitrogen Compounds / Q000032:analysis; D018505:Waste Management; D014866:Waste Products / Q000032:analysis*; D014876:Water Pollution / Q000032:analysis*
chemical_list: D002712:Chlorides; D005232:Fatty Acids, Volatile; D005740:Gases; D019216:Metals, Heavy; D017672:Nitrogen Compounds; D014866:Waste Products; D002244:Carbon; D008274:Magnesium; D002118:Calcium
keywords: Biodegradation; Flushing; Landfill; Leachate; MBT waste; Pretreatment