Original scientific paper
https://doi.org/10.15255/CABEQ.2016.1041
Biochemical Neutralization of Coke Excess Sewage Sludge During Anaerobic Digestion Process
B. Macherzyński
; aculty of Biology and Environmental Science, Cardinal Stefan Wyszynski University in Warsaw, Wóycickiego 1/3, 01-938 Warsaw, Poland
M. Włodarczyk-Makuła
; Faculty of Infrastructure and Environment, Częstochowa University of Technology, Dąbrowskiego 69, 42-201 Częstochowa, Poland
Abstract
The paper presents the results of the study concerning the production of biogas, thermal energy gain and changes of physical-chemical properties during the process of anaerobic digestion of the municipal sewage sludge amended with coke sewage sludge. The control sample (K) consisted of primary, excessive, and digested sewage sludge
(municipal sewage sludge). Another sample consisted of sample (K) and coke sewage sludge (20:1 v/v). The total volume of biogas was equal to 0.62 L g–1 TS and 0.56 L g–1 TS during the anaerobic digestion of the municipal sewage sludge and during the digestion of the mixture of the municipal sludge and the coke sewage sludge, respectively. The gain of the thermal energy of methane was 40 % during the digestion process. The percentage of decomposition of the organic substance was similar in municipal sewage sludge and in the mixture of municipal sewage sludge amended with coke sewage sludge.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Keywords
anaerobic digestion; coke sewage sludge; municipal sewage sludge; biogas; methane; thermal energy gain
Hrčak ID:
203186
URI
Publication date:
5.7.2018.
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