Response of an anaerobic fluidized bed reactor treating ice-cream wastewater to organic, hydraulic, temperature and pH shocks
Borja, Rafael and Banks, Charles J. (1995) Response of an anaerobic fluidized bed reactor treating ice-cream wastewater to organic, hydraulic, temperature and pH shocks. Journal of Biotechnology, 39, (3), 251-259. (doi:10.1016/0168-1656(95)00021-H).
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An anaerobic fluidized bed reactor, operating at 35° C, was used to treat ice-cream wastewater with an influent chemical oxygen demand (COD) of 5.2 g l−1. Start-up of the reactor was achieved within 30 days by use of a regime that included stepped increases in influent COD and methanol substitution of the substrate. A steady state was achieved with 94.4% COD reduction at an organic COD loading rate of 15.6 g l−1 d−1 (HRT 8 h). This rate is somewhat faster than those achieved in previously reported studies. The reactor was subjected to transient changes in temperature, pH, influent flow-rate and COD for 6 and 12 h periods. The quality of the effluent deteriorated under these shock load conditions but returned to steady-state values within 6–16 h upon restoring normal conditions. The stability of the reactor under unfavourable process conditions is discussed.
|Keywords:||anaerobic fluidized bed reactor, organic shock, hydraulic shock, temperature shock, pH shock, ice-cream wastewater|
|Subjects:||T Technology > TD Environmental technology. Sanitary engineering
Q Science > QD Chemistry
Q Science > QH Natural history > QH301 Biology
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||11 Mar 2010|
|Last Modified:||02 Mar 2012 12:36|
|Contributors:||Borja, Rafael (Author)
Banks, Charles J. (Author)
|Date:||1 May 1995|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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