Mesophilic Anaerobic Digestion of Dairy Manure and Vegetable Waste Using Batch Reactor

Abstract:

Anaerobic digestion of single dairy manure, single vegetable waste, mixture of dairy manure and vegetable waste was conducted to produce biogas. Startup characteristic, leachate parameters and inoculation amount were investigated. The experimental results showed that anaerobic digestion can start up quickly with acclimated thickening sludge as inoculation sludge and 30% was appropriate inoculation percentage. Digestion of single dairy manure and mixture of dairy manure and vegetable waste appeared better buffering ability with higher alkalinity than single vegetable waste. Compared to single digestion of dairy manure or vegetable waste, mixture of dairy manure and vegetable waste is more suitable for anaerobic digestion. Under the conditions of TS=10% and T=(36±1)°C, cumulative biogas production of mixture of dairy manure and vegetable waste is 5281 mL during the period of 30 days and average daily gas production is about 176 mL. These results could provide theoretical data for practical biogas engineering.

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 121-126
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.121
• Online since: August 2014
• Authors: Lin Jun Shi, Wen Lan Liu, Hui Fen Liu, Wei Yu Zhang, Li Tong Ban*
• Keywords: Anaerobic Digestion, Batch Reactor, Biogas, Dairy Manure, Mesophilic Temperature, Vegetable Waste

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