Biochemical Neutralization of Coke Excess Sewage Sludge During Anaerobic Digestion Process
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, exce...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Croatian Society of Chemical Engineers
2018-07-01
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| Series: | Chemical and Biochemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://silverstripe.fkit.hr/cabeq/assets/Uploads/08-2-18.pdf |
| Summary: | 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–1TS and 0.56 L g–1TS 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. |
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| ISSN: | 0352-9568 1846-5153 |