Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Kosińska K. , Miśkiewicz T. 2005. ENHANCEMENT OF CONTINUOUS BIODEGRADATION OF SULPHATES AND ORGANIC POLLUTANTS BY DESULFOVIBRIO DESULFURICANS VIA BIOMASS RECIRCULATION , EJPAU 8(3), #23.
Available Online: http://www.ejpau.media.pl/volume8/issue3/abs-23.html

ABSTRACT

Liquid manure from an industrial pig fattening plant was degraded by Desulfovibrio desulfuricans bacteria in a flow reactor with and without biomass recirculation at a hydraulic retention time of 3 to 25 days. In contrast to the reactor without biomass recirculation, the time of wastewater retention in the reactor with recirculation did not affect the efficiency of either COD or SO₄^2- removal. The extent of reduction in SO₄^2- varied from 96.2 to 98.7%, while that in COD ranged from 85.5 to 91.1%. The higher performance of the reactor with biomass recirculation may be attributed to the older age of the biomass and a lower pollutant load.

Key words: Desulfovibrio desulfuricans, sulphate reducing bacteria, biomass recirculation, liquid manure from an industrial pig fattening plant.

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Krystyna Kosińska
Institute of Environmental Protection,
Division in Wroclaw, Poland
Wybrzeże Wyspianskiego 39E, 50-370 Wroclaw, Poland
phone/fax: +48 71 3281535
email: krystyna.kosinska@nd.e-wro.pl

Tadeusz Miśkiewicz
Department of Bioprocess Engineering,
Wroclaw University of Economics, Poland
Komandorska 118/120, 53-345 Wroclaw, Poland
phone: +48 71 3680269
fax: +48 71 680753
email: tadeusz.miskiewicz@ae.wroc.pl

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Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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