Performance of a laboratory-scale microalgae pond for secondary treatment of distillery wastewaters
Travieso, L., Benitez, F., Sanchez, E., Borja, R., Leon, M., Raposo, F. and Rincon, B. (2008) Performance of a laboratory-scale microalgae pond for secondary treatment of distillery wastewaters. Chemical and Biochemical Engineering Quarterly, 22, (4), 467-473.
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Distillery waste disposal is one of the major problems being faced by all nations
across the globe. To diminish its organic loading, the distillery waste is treated before its
final disposal by biological processes. Microalgae pond gives a way to solve this situation.
An evaluation of the performance of a laboratory-scale microalgae pond treating
distillery waste previously treated in an anaerobic filter was carried out. The microalgae
pond operated with an effluent recycling (R) of 10:1 with respect to the influent and at an
hydraulic retention time (HRT) of 11 days based on the mixture (influent + recycling).
The surface organic loading rates (SOLR) used were G = 418 kg COD ha–1 d–1 and G =
92 kg BOD5 ha–1 d–1 according to the literature recommendations for microalgae ponds.
Total chemical oxygen demand (COD), biochemical oxygen demand (BOD5), total solids
(TS), total suspended solids (TSS), volatile suspended solids (VSS), total nitrogen, ammonia,
total chlorophyll (γC,T) and chlorophyll a (γca) concentrations were monitored.
COD and BOD5 removals of 83.2 % and 88.0 %, respectively were obtained. Removals
of 60.6 %, 53.4 % and 78.8 % in the TS, TSS and VSS concentrations were achieved.
The possibility to grow microalgae for biomass in this waste was also evaluated using
the determinations of chlorophyll a (γca) and VSS.
|Keywords:||distillery waste, microalgae pond, secondary treatment, effluent recycling|
|Subjects:||T Technology > TD Environmental technology. Sanitary engineering
H Social Sciences > HD Industries. Land use. Labor
Q Science > QH Natural history > QH301 Biology
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||12 Mar 2010|
|Last Modified:||01 Jun 2011 10:04|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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