Please use this identifier to cite or link to this item: https://doi.org/10.1007/BF02933468
Title: Energy generation by methanation of persistent wastes
Authors: Chua, H.
Chen, Y.F.
Yap, M.G.S.
Ng, W.J. 
Keywords: Anaerobic fixed-film reactor
branched-chain fatty acid
methanation
persistent organics
Issue Date: Sep-1995
Source: Chua, H., Chen, Y.F., Yap, M.G.S., Ng, W.J. (1995-09). Energy generation by methanation of persistent wastes. Applied Biochemistry and Biotechnology 51-52 (1) : 673-680. ScholarBank@NUS Repository. https://doi.org/10.1007/BF02933468
Abstract: A 15-L anaerobic fixed-film reactor (AFFR) was evaluated for treating a trade effluent containing inhibitory concentrations of persistent branched-chain fatty acids, namely 2-ethylhexanoic acid (2-EHA) and neopentanoic acid (NPA), at a total of 17,000 mg COD/L. The AFFR was packed with fire-expanded clay spheres, and start-up was accomplished in 60 d. The organic load was increased in steps from 1.1 to 8.5 g COD/L/d. Total COD, 2-EHA, and NPA removal efficiencies were maintained above 70, 98, and 75%, respectively. The reactor could recover from a shock load of 150% increase in organic load. Combined mechanisms of organic adsorption and biodegradation rendered the AFFR more stable with shock loads. Mathane gas produced from the process could be used for preheating the effluent. © 1995 Humana Press Inc.
Source Title: Applied Biochemistry and Biotechnology
URI: http://scholarbank.nus.edu.sg/handle/10635/65529
ISSN: 02732289
DOI: 10.1007/BF02933468
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