File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Electrochemical disinfection of saline wastewater effluent

TitleElectrochemical disinfection of saline wastewater effluent
Authors
KeywordsChlorination
Coliform
Disinfection
Salinity
Wastewater
Issue Date2002
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.html
Citation
Journal Of Environmental Engineering, 2002, v. 128 n. 8, p. 697-704 How to Cite?
AbstractA laboratory-scale electrochemical (EC) disinfector was used for the disinfection of various wastewater effluents, including saline primary effluent, saline secondary effluent, and freshwater secondary effluent. Such EC disinfection was highly effective for saline effluent with a salinity content of around 8%‰. A killing efficiency of 99.9% on total coliform bacteria was achieved for saline secondary effluent with a contact time of less than 10 s and a power consumption rate no more than 0.006 kWh/m 3. For primarily treated saline effluent, the same degree of disinfection was obtained with a contact time of less than 20 s and a power consumption of lower than 0.08 kWh/m 3. The efficiency of EC disinfection was regulated by both the contact time (t) and current density (I d) applied, and a kinetic function in terms of survival ratio (N/N o) was developed for the saline secondary effluent, i.e., log(N/N o)=-0.01(I dt) 1.87. While EC disinfection is highly applicable for saline effluent, it did not exhibit a similar degree of effectiveness for freshwater sewage effluent, even with a longer contact time and higher power input. Based on the results of the EC disinfection and comparative direct chlorination experiments, it is argued that the main disinfecting action of the EC process may not be electrochlorination. The EC process could produce other short-lived, more powerful germicidal substances that exert the strong killing function within a short contact time.
Persistent Identifierhttp://hdl.handle.net/10722/70705
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, XYen_HK
dc.contributor.authorDing, Fen_HK
dc.contributor.authorLo, PSYen_HK
dc.contributor.authorSin, SHPen_HK
dc.date.accessioned2010-09-06T06:25:22Z-
dc.date.available2010-09-06T06:25:22Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of Environmental Engineering, 2002, v. 128 n. 8, p. 697-704en_HK
dc.identifier.issn0733-9372en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70705-
dc.description.abstractA laboratory-scale electrochemical (EC) disinfector was used for the disinfection of various wastewater effluents, including saline primary effluent, saline secondary effluent, and freshwater secondary effluent. Such EC disinfection was highly effective for saline effluent with a salinity content of around 8%‰. A killing efficiency of 99.9% on total coliform bacteria was achieved for saline secondary effluent with a contact time of less than 10 s and a power consumption rate no more than 0.006 kWh/m 3. For primarily treated saline effluent, the same degree of disinfection was obtained with a contact time of less than 20 s and a power consumption of lower than 0.08 kWh/m 3. The efficiency of EC disinfection was regulated by both the contact time (t) and current density (I d) applied, and a kinetic function in terms of survival ratio (N/N o) was developed for the saline secondary effluent, i.e., log(N/N o)=-0.01(I dt) 1.87. While EC disinfection is highly applicable for saline effluent, it did not exhibit a similar degree of effectiveness for freshwater sewage effluent, even with a longer contact time and higher power input. Based on the results of the EC disinfection and comparative direct chlorination experiments, it is argued that the main disinfecting action of the EC process may not be electrochlorination. The EC process could produce other short-lived, more powerful germicidal substances that exert the strong killing function within a short contact time.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_HK
dc.relation.ispartofJournal of Environmental Engineeringen_HK
dc.rightsJournal of Environmental Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.subjectChlorinationen_HK
dc.subjectColiformen_HK
dc.subjectDisinfectionen_HK
dc.subjectSalinityen_HK
dc.subjectWastewateren_HK
dc.titleElectrochemical disinfection of saline wastewater effluenten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-9372&volume=128&issue=8&spage=697&epage=704&date=2002&atitle=Electrochemical+disinfection+of+saline+wastewater+effluenten_HK
dc.identifier.emailLi, XY:xlia@hkucc.hku.hken_HK
dc.identifier.authorityLi, XY=rp00222en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1061/(ASCE)0733-9372(2002)128:8(697)en_HK
dc.identifier.scopuseid_2-s2.0-0036684714en_HK
dc.identifier.hkuros75998en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036684714&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume128en_HK
dc.identifier.issue8en_HK
dc.identifier.spage697en_HK
dc.identifier.epage704en_HK
dc.identifier.isiWOS:000177057600005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK
dc.identifier.scopusauthoridDing, F=55167806900en_HK
dc.identifier.scopusauthoridLo, PSY=7004401831en_HK
dc.identifier.scopusauthoridSin, SHP=7006553280en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats