Co-digestion of agricultural and industrial wastes

3601 23 21757 4 43343 document 21757 Callaghan98PhD.pdf application/pdf bf02fe360af565729df8d40b176e852e MD5 25951496 2012-07-26 08:09:46 http://etheses.bham.ac.uk//id/eprint/3601/1/Callaghan98PhD.pdf 3601 1 1 application/pdf application/pdf en public

Callaghan98PhD.pdf

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http://eprints.org/relation/isVersionOf http://etheses.bham.ac.uk/id/document/21757 http://eprints.org/relation/isVolatileVersionOf http://etheses.bham.ac.uk/id/document/21757 http://eprints.org/relation/isIndexCodesVersionOf http://etheses.bham.ac.uk/id/document/21757 archive 4031 disk0/00/00/36/01 2012-07-26 08:29:31 2019-01-23 09:56:38 2012-07-26 08:29:31 thesis show 0 Callaghan Fergal James Forster Chris Wase D. A. John 1938- Thayanithy K. University of Birmingham Co-digestion of agricultural and industrial wastes unpub GE S1 TD TP TS 40fac_eng Anaerobic digestion technology has not gained widespread acceptance on UK farms due mainly to the long return on investment periods involved. It has been suggested that co-digestion of agricultural and industrial wastes may enhance the economic viability of such installations. Batch and continuous digestion of cattle slurry and organic industrial wastes was carried out in specially constructed pilot plant digesters, to determine optimum mixtures of waste and digester loading rates. A total of 10 different wastes were tested, on a batch digestion basis, for their potential to co-digest with cattle slurry. Of these, 3 were chosen for continuous pilot plant trials, due to either a need to provide a disposal route for the waste, or positive effects of the waste on methane productivity. Chicken manure was found to slightly enhance methane productivity, but ammonia inhibition of methanogenic bacteria was noted over time. The organic fraction of municipal household waste (OFMSW) significantly enhanced digester methane productivity, while fish offal (FO) slightly enhanced methane productivity when added to the digester in small quantities, but quickly caused digester failure when added in larger amounts. An economic model of a digestion facility was developed and used to show the financial benefits of co-digestion. 1998 1998-06 graduation 1523407 eng other Scanned by Hollingworth and Moss This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder. public 354 University of Birmingham School of Chemical Engineering d_ph bbsrc 1998 graduation