2011年
Sewage Sludge Dewatering Process Using Liquefied Dimethyl Ether as Solid Fuel
DRYING TECHNOLOGY
- ,
- ,
- ,
- ,
- ,
- ,
- 巻
- 29
- 号
- 6
- 開始ページ
- 624
- 終了ページ
- 632
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1080/07373937.2010.519129
- 出版者・発行元
- TAYLOR & FRANCIS INC
This article describes the dewatering of sewage sludge using liquefied dimethyl ether (DME), which clarified the effect of sludge type and its particle size. Changes in the heating value of the dewatered sludge were also examined. In addition, the change in dewaterability upon reuse of the liquefied DME was investigated experimentally.
Regardless of the nature of the sludge, its dewatering behavior was similar. The amount of dewatered water could be increased by decreasing the diameter of the sludge cake. Complete drying of the sludge cake via DME dewatering resulted in retention of approximately 96% of the heating value (17.7 MJ/kg-sludge) of the original sludge cake dry base (18.4 MJ/kg db). The DME could be recovered after extraction, and reuse experiments showed that liquefied DME dewatering performance was unchanged after five reuses.
Regardless of the nature of the sludge, its dewatering behavior was similar. The amount of dewatered water could be increased by decreasing the diameter of the sludge cake. Complete drying of the sludge cake via DME dewatering resulted in retention of approximately 96% of the heating value (17.7 MJ/kg-sludge) of the original sludge cake dry base (18.4 MJ/kg db). The DME could be recovered after extraction, and reuse experiments showed that liquefied DME dewatering performance was unchanged after five reuses.
- リンク情報
- ID情報
-
- DOI : 10.1080/07373937.2010.519129
- ISSN : 0737-3937
- Web of Science ID : WOS:000290034300004