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Simultaneous effects of airflow and temperature increase on water removal in bio-drying
| Title: | Simultaneous effects of airflow and temperature increase on water removal in bio-drying |
| Authors: | Ham, Geun-Yong Browse this author | | Lee, Dong-Hoon Browse this author | | Matsuto, Toshihiko Browse this author →KAKEN DB | | Tojo, Yasumasa Browse this author →KAKEN DB | | Park, Jae-Ram Browse this author |
| Keywords: | Bio-drying | | Organic content | | Airflow rate | | Water removal rate |
| Issue Date: | Jul-2020 |
| Publisher: | Springer |
| Journal Title: | Journal of material cycles and waste management |
| Volume: | 22 |
| Issue: | 4 |
| Start Page: | 1056 |
| End Page: | 1066 |
| Publisher DOI: | 10.1007/s10163-020-01000-x |
| Abstract: | Bio-drying MBT is a type of mechanical biological treatment (MBT) system, whereby the aerobic biological process is first used to remove moisture, which is followed by the mechanical separation to recover material and energy as a solid recovered fuel (SRF). Among various parameters of this process, the simultaneous effects of airflow rate and organic contents were examined in this study. A 25 L acrylic column reactor was filled with simulated waste. Temperature and humidity of the air inlet and outlet were continuously monitored, and CO2 concentrations in outlet air were periodically analyzed to observe aerobic biodegradation as well as metabolic water generation. Based on the data, the different water removal contributions by airflow and biodegradation were compared, and finally, evaluation of the inter-dependence of parameters and feedback effect in the bio-drying process was carried out. While the biodegradation of organics induced a significant amount of water removal due to increased temperature, high organic content has a negative effect on water removal by generating metabolic water. Water removal by air replacement is greater than that associated with temperature increases caused by biodegradation. However, excessive airflow rate can terminate biodegradation by drastically lowered moisture content, even though organics remained. |
| Rights: | This is a post-peer-review, pre-copyedit version of an article published in Journal of material cycles and waste management. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10163-020-01000-x. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/82105 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: ハム グンヨン
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