Effect of pre-drying on the pore structure development of sewage sludge during pyrolysis

Lu G.Q. (1995) Effect of pre-drying on the pore structure development of sewage sludge during pyrolysis. Environmental Technology (United Kingdom), 16 5: 495-499. doi:10.1080/09593331608616291


Author Lu G.Q.
Title Effect of pre-drying on the pore structure development of sewage sludge during pyrolysis
Journal name Environmental Technology (United Kingdom)   Check publisher's open access policy
ISSN 1479-487X
Publication date 1995-01-01
Sub-type Article (original research)
DOI 10.1080/09593331608616291
Volume 16
Issue 5
Start page 495
End page 499
Total pages 5
Subject 2304 Environmental Chemistry
2311 Waste Management and Disposal
2312 Water Science and Technology
2300 Environmental Science
Abstract Pyrolysis of digested sewage sludge was conducted in a nitrogen atmosphere in this study. The effects of temperature and air pre-drying on the surface area and pore structure development were investigated. It is found that the BET surface area of the chars derived increases with increasing temperature. Pre-dried sewage sludge results in higher surface area in the char than the raw sludge. It is demonstrated that pre-drying has an effect of promoting micropore structure development, whereas there are more mesopores and macropores developed in the raw sludge char due to possible pore enlargement resulting from volatile gas bubbling out of the softened intermediate product during pyrolysis in the temperature range of 550"C - 650°C.
Keyword Micropore
Pre-drying
Pyrolysis
Surface area
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 13 Sep 2016, 14:33:19 EST by System User