| Title |
Gasification of Sewage Sludge in a Rotary Kiln Reactor - A Case Study with Incorporation of Sewage Sludge Ash in Brick Production |
| ID_Doc |
23213 |
| Authors |
Bubalo, A; Vouk, D; Maljkovic, D; Bolanca, T |
| Title |
Gasification of Sewage Sludge in a Rotary Kiln Reactor - A Case Study with Incorporation of Sewage Sludge Ash in Brick Production |
| Year |
2022 |
| Published |
Chemical And Biochemical Engineering Quarterly, 36, 1 |
| DOI |
10.15255/CABEQ.2021.2030 |
| Abstract |
The gasification of sewage sludge (SS) was studied in a semi-industrial pilot plant consisting of a rotary kiln reactor. The gasification process was preceded by drying the SS in an integrated tubular rotating structure with built-in worm conveyors, to increase the dry matter (DM) content in the SS (> 90 wt.%). The released hydrogen-rich syngas from the gasification process of SS had low heating value (LHV) of approximately 8.83 MJ N-1 m(-3) (equal to 2.45 kWh N-1 m(-3)) due to the high content of combustible gases H-2 (41.5 vol.%) and CH4 (3.2 vol.%). Also investigated was the incorporation of sewage sludge ash (SSA) generated in the process of gasification as a partial substitute for clay in the production of clay bricks. Amounts of 5 wt.%, 10 wt.%, 20 wt.% of clay were replaced by SSA. By incorporating SSA at 5 wt.%, the new brick product achieved 4.5 % higher compressive strength compared to the control brick. |
| Author Keywords |
sewage sludge; gasification; syngas; sewage sludge ash; brick production; circular economy |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000787343100007 |
| WoS Category |
Biotechnology & Applied Microbiology; Engineering, Chemical |
| Research Area |
Biotechnology & Applied Microbiology; Engineering |
| PDF |
https://doi.org/10.15255/cabeq.2021.2030
|