Simultaneous Ammonia removal and Methane Production from Chicken Manure under Dry Thermophilic Condition

In a trail to improve and reduce the cost of dry anaerobic fermentation of chicken manure with ammonia stripping through biogas recycling, raw chicken manure (RCM) is used as a sole substrate instead of using treated chicken manure (TCM) or mixture of TCM:RCM (1:1) used previously. Biogas produced was ranged from 23.555 L kg-CM-1 with methane percentage of 70 to 85%, the amount which is 61 to 95% and 109 to 141% higher than that obtained from TCM and mixture of TCM and RCM (1:1). Ammonia removal reached 82.7% keeping the ammonia level in the reactor in most batches less than 3.6 g-N kg. Acetate was less than 20 mmol kg at the end of each batch. A maximum of 324 ml g-VS of methane was obtained which is quiet higher than that obtained from any other previous study. Additionally RCM could be used as a substrate [F. Abouelenien . N. Elsaidy and Y. Nakashimada Simultaneous Ammonia removal and Methane Production from Chicken Manure under Dry Thermophilic Condition. J Am Sci 2013;9(10):90-94]. (ISSN: 1545-1003). http://www.jofamericanscience.org. 11 Keyword: Ammonia stripping, Chicken Manure, dry fermentation, Methane production