Title of article
Intensification of the Biomethanisation Process in Wastewater Treatment plant
Author/Authors
Drzewicki، A. نويسنده Department of Applied Ecology, Faculty of Environmental Sciences, University of Warmia and Mazury, Poland , , Bu?kowska، K. نويسنده Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury, Sloneczna 45G St., 10-917 Olsztyn, Poland , , Tomczykowska، M. نويسنده Water and Sewerage Corporation in Ostr?da, Poland ,
Issue Information
فصلنامه با شماره پیاپی 35 سال 2015
Pages
8
From page
805
To page
812
Abstract
In the present study, the increase of organic loading rate (OLR) influences the biomethanisation
of sewage sludge. The research was conducted at technical scale in wastewater treatment plant in Tyrowo
(near Ostr?da, Poland). It has been shown that the increase of OLR, by adding co-substrates, cause the increase
of biogas production but not biogas yield coefficient. The substrates used for anaerobic digestion were primary
sludge and excess sludge. As co-substrates there were fats, thin stillage and whey. The highest total biogas
production of 115977 m3/month and electricity production of 231.3 MWh were obtained for the highest OLR of
1.88 kg VS/m3.d. Anaerobic co-digestion of primary and excess sewage sludge with co-substrates at the highest
OLR caused an increase of pH to 7.7 and volatile fatty acid concentration to 616 mg/dm3, but there was no loss
to the stability of the process. Regardless of organic loading rate, the concentration of ammonium nitrogen was
within the optimal range.
Journal title
International Journal of Environmental Research(IJER)
Serial Year
2015
Journal title
International Journal of Environmental Research(IJER)
Record number
2385488
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