The influence of petroleum products on the methane fermentation process

P. Choromański , Ewa Karwowska , Maria Łebkowska

Abstract

In this study the influence of the petroleum products: diesel fuel and spent engine oil on the sewage sludge digestion process and biogas production efficiency was investigated. Microbiological, chemical and enzymatic analyses were applied in the survey. It was revealed that the influence of the petroleum derivatives on the effectiveness of the methane fermentation of sewage sludge depends on the type of the petroleum product. Diesel fuel did not limit the biogas production and the methane concentration in the biogas, while spent engine oil significantly reduced the process efficacy. The changes in physical-chemical parameters, excluding COD, did not reflect the effect of the tested substances. The negative influence of petroleum products on individual bacterial groups was observed after 7 days of the process, while after 14 days probably some adaptive mechanisms appeared. The dehydrogenase activity assessment was the most relevant parameter to evaluate the effect of petroleum products contamination. Diesel fuel was probably used as a source of carbon and energy in the process, while the toxic influence was observed in case of spent engine oil.
Author P. Choromański
P. Choromański,,
-
, Ewa Karwowska ZB
Ewa Karwowska,,
- Department of Biology
, Maria Łebkowska ZB
Maria Łebkowska,,
- Department of Biology
Journal seriesJournal of Hazardous Materials, ISSN 0304-3894
Issue year2016
Vol301
Pages327-331
Publication size in sheets0.5
Keywords in EnglishBiogas, Methane fermentation, Petroleum products
DOIDOI:10.1016/j.jhazmat.2015.09.011
URL http://www.ncbi.nlm.nih.gov/pubmed/26378365
Languageen angielski
Score (nominal)45
ScoreMinisterial score = 45.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 6.065 (2) - 2016=6.393 (5)
Citation count*2 (2018-06-21)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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