Linked Life Data

17910252

Source:http://linkedlifedata.com/resource/pubmed/id/17910252

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2007-10-3
pubmed:abstractText
Ultrafiltration combined with coagulation pretreatment was used to treat two kraft pulp mill wastewaters from first-stage caustic extraction and alkaline bleaching operations, respectively. Both alum and ferric chloride were tested using standard jar apparatus at different dose, pH and ionic strength conditions. Ultrafiltration tests were conducted using a crossflow flat-sheet membrane apparatus operated in the constant transmembrane pressure mode to examine the effects of membrane material, crossflow velocity and transmembrane pressure in terms of permeate flux and treated effluent quality. The results showed that coagulation with both alum and ferric chloride greatly reduced the permeate flux decline rates. In comparison with alum, greater permeate fluxes were obtained with the use of ferric chloride. Among the process parameters examined, coagulant dose was identified as the most important factor affecting the permeate flux. In addition, colour and COD removals were achieved largely by coagulation for alkaline bleaching wastewater while by membrane filtration for caustic extraction wastewater, highlighting the different mechanisms underlying contaminant removal.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Alum Compounds, http://linkedlifedata.com/resource/pubmed/chemical/Cellulose, http://linkedlifedata.com/resource/pubmed/chemical/Chlorides, http://linkedlifedata.com/resource/pubmed/chemical/Ferric Compounds, http://linkedlifedata.com/resource/pubmed/chemical/Industrial Waste, http://linkedlifedata.com/resource/pubmed/chemical/Membranes, Artificial, http://linkedlifedata.com/resource/pubmed/chemical/Polymers, http://linkedlifedata.com/resource/pubmed/chemical/Sulfones, http://linkedlifedata.com/resource/pubmed/chemical/acetylcellulose, http://linkedlifedata.com/resource/pubmed/chemical/aluminum sulfate, http://linkedlifedata.com/resource/pubmed/chemical/ferric chloride, http://linkedlifedata.com/resource/pubmed/chemical/polysulfone P 1700
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0959-3330
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
995-1006
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Combining ultrafiltration process with coagulation pretreatment for pulp mill wastewater treatment.
pubmed:affiliation
School of Engineering, University of Guelph, Guelph, Ontario, Canada N1G 2W1.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't