Optimization of the treatment cycle of pressed-off leachate produced in a facility processing the organic fraction of municipal solid waste

The paper investigates, at a laboratory scale, the applicability of anaerobic digestion for the treatment of pressed-off leachate produced in a biomechanical treatment plant for municipal solid waste. Batch tests show that the anaerobic process proceeds smoothly and produces about 10,000 mL of metha...

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Veröffentlicht in:Environmental technology. - 1993. - 36(2015), 9-12 vom: 25. Mai, Seite 1367-72
1. Verfasser: d'Antonio, Luca (VerfasserIn)
Weitere Verfasser: Fabbricino, Massimiliano, Pontoni, Ludovico
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Evaluation Study Journal Article anaerobic digestion biomechanical treatment clariflocculation digestate pressed-off leachate Water Pollutants, Chemical Methane OP0UW79H66
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520 |a The paper investigates, at a laboratory scale, the applicability of anaerobic digestion for the treatment of pressed-off leachate produced in a biomechanical treatment plant for municipal solid waste. Batch tests show that the anaerobic process proceeds smoothly and produces about 10,000 mL of methane per litre of treated leachate. The process is characterized by a lag phase lasting about 30 days, and is completed in about 2 months. Chemical oxygen demand (COD) and volatile fatty acids monitoring allows studying process kinetics that are modelled through a triple linear expression. Physical and biological treatments are also investigated to reduce the residual organic charge of the produced digestate. The best performances are obtained via aerobic degradation followed by assisted sedimentation. This cycle reduces the residual COD of about 85%, and allows the correct disposal of the final waste stream 
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