Anaerobic co-digestion of water hyacinth and banana peels with and without thermal pretreatment. (April 2019)

• Record Type: Journal Article
• Authors: Barua, Visva Bharati; Rathore, Vidhi; Kalamdhad, Ajay S.
• Is Part Of: Renewable energy. Volume 134(2019)
• Page Start: 103
• Page End: 112
• Publication Date: 2019-04
• Subjects: Water hyacinth -- Banana peels -- Co-digestion -- Mixing ratio -- Pretreatment -- Biogas; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2018.11.018
• Languages: English
• ISSNs: 0960-1481

Abstract

Abstract: This study evaluates the effect of mixing ratio (1, 1.5, 2 and 2.5) and hot air oven pretreatment on the anaerobic co-digestion of water hyacinth and banana peels. Two sets of bio-chemical methane potential (BMP) tests were performed concurrently. In set I, untreated water hyacinth was mixed with banana peels and in set II, water hyacinth was pretreated before co-digestion. Fixed amount of cow dung was added to each reactor as an inoculum. The anaerobic batch test revealed that set II, where pretreated water hyacinth and banana peels was co-digested, demonstrated higher biogas production and better quality of biogas than set I. Mixing ratio 2 and 1.5 were illustrated to be the optimal mixing ratio for set I and II respectively. Both the sets illustrated higher biogas generation than mono-digestion of the substrates. Thus, anaerobic co-digestion of water hyacinth and banana peels portrayed a synergistic action by balancing the overall process. Highlights: Water hyacinth and banana peels were co-digested with various mixing ratios. Effect of thermal pretreatment on co-digestion was investigated. Co-digestion alongwith pretreatment enhanced biogas generation. Gompertz equation simulation validated the experimental observation.