Influence of pre-treatments and anaerobic co-digestion of slaughterhouse waste with vegetable, fruit and flower market wastes for enhanced methane production

Considerable amounts of slaughterhouse wastes (SHW) are generated in Indian urban centres causing serious environmental issues that demand effective treatment and disposal. The present study evaluates the effect of pasteurization (70 °C for 1 h) and extrusion pre-treatment on pathogen removal and methane production from SHW in anaerobic mono- and co-digestion with mixed vegetable, fruit and flower market wastes (VMW) under controlled batch anaerobic digestion (AD) tests. The complete destruction of pathogen was observed in post-pasteurized SHW, whereas the post-extruded SHW showed significant reduction (p