Anaerobic co digestion and Pre treatment processes on organic Fractions of municipal solid waste For enhanced bioenergy production

Abstract

India is one of the Newly Industrialized Countries (NIC) in Asia newlinethat generates huge amount of urban municipal solid wastes due to the rising newlineurbanization. The organic wastes generated from the centralized wholesale newlinemarkets from urban centres are mostly disposed in dumpsites/landfills or newlineutilized for low valued applications like composting. Hence, sustainable newlinesolution for the effective treatment and disposal of these wastes from Indian newlineurban centres need to be explored. Anaerobic digestion (AD) of organic newlinewastes is a promising option for bioenergy production. However, in order to newlineutilize these wastes for AD process for energy recovery, the biogas potential newlineof organic wastes is fundamental. Further there still exists limitation in the newlinewaste conversion efficiency and process inhibitions during anaerobic newlinedigestion of individual organic wastes. Hence, in addition to the determination newlineof organic waste potentials from urban centres, there is also a need for newlinesubstrate management for reducing process inhibitions as well as organic newlinewaste pretreatment prior to AD process for enhanced energy production newlinethrough increased waste conversion efficiency and reduced process newlineinhibitions. newlineFirstly, the organic waste potentials from Chennai city by newlineanaerobic digestion process through a comprehensive analysis of organic newlinewaste hotspots and its biogas potentials were demonstrated. From AD tests, newlinethe results of biogas potential tests of organic wastes (such as vegetable newlinewastes, fruit wastes, flower wastes, slaughterhouse wastes, fish market newlinewastes, food wastes etc.) showed strong variations in the biogas potentials of newlineindividual waste streams from 240.2 ± 6.8 to 514.2 ± 20.7 mLN/g oDM newline(organic dry matter). newline