Document Detail


High-speed sludge freezing.
MedLine Citation:
PMID:  11547875     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The investigation examined the feasibility of applying a "high-speed freezing technique, using liquid nitrogen freezing, to condition activated sludges and alum sludges. Experimental results indicate that the freezing speed is much faster than that adopted in most previous works on sludge freezing. Although the filterability and settleability of the alum sludge is improved by 3-min liquid nitrogen freezing, no similar improvement is observed for activated sludge. Moreover, curing affects neither sludge after liquid nitrogen freezing, but affects the slow-freezing activated sludge.
Authors:
L C Chen; C Y Chian; P S Yen; C P Chu; D J Lee
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water research     Volume:  35     ISSN:  0043-1354     ISO Abbreviation:  Water Res.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-09-07     Completed Date:  2002-05-29     Revised Date:  2006-04-19    
Medline Journal Info:
Nlm Unique ID:  0105072     Medline TA:  Water Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  3502-7     Citation Subset:  IM    
Affiliation:
Department of Chemical Engineering. National Taiwan University, Taipei.
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MeSH Terms
Descriptor/Qualifier:
Alum Compounds / chemistry
Filtration
Flocculation
Freezing
Nitrogen
Sewage / chemistry*
Time Factors
Chemical
Reg. No./Substance:
0/Alum Compounds; 0/Sewage; 10043-01-3/aluminum sulfate; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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