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Article: Ozonation of refractory chemicals in leachate with hydrogen peroxide

TitleOzonation of refractory chemicals in leachate with hydrogen peroxide
Authors
Issue Date2002
PublisherI O S Press. The Journal's web site is located at http://www.iospress.nl/html/10010742.php
Citation
Journal Of Environmental Sciences, 2002, v. 14 n. 4, p. 495-500 How to Cite?
AbstractNearly 97% of organic chemicals in Hong Kong leachate could be effectively removed by the UASB(upflow anaerobic sludge blanket) process followed by the fenton coagulation. The COD of leachate was lowered from an average of 12900 mg/L to 1440 mg/L after the UASB treatment, and was further lowered to 394 mg/L after the fenton coagulation. The remaining refractory residues could be further removed by ozonation with the addition of H2O2. The ozonation for the supernatant of the fenton coagulation was most effective at pH 7-8, with the addition of 300 mg/L of H2O2, and 30 min of reaction. The final effluent contained only 85 mg/L of COD and 10 mg/L of BOD5. On the other hand, direct ozonation of UASB effluent lowered the COD to 905 mg/L and BOD5 to 103 mg/L. Ozonation improved the biodegradability of the organic residues, and also converted part of organic-N in the leachate into NH3-N and NO-3-N.
Persistent Identifierhttp://hdl.handle.net/10722/71122
ISSN
2015 Impact Factor: 2.208
2015 SCImago Journal Rankings: 0.832
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Pen_HK
dc.contributor.authorLau, WCIen_HK
dc.contributor.authorFang, HPHen_HK
dc.date.accessioned2010-09-06T06:29:06Z-
dc.date.available2010-09-06T06:29:06Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of Environmental Sciences, 2002, v. 14 n. 4, p. 495-500en_HK
dc.identifier.issn1001-0742en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71122-
dc.description.abstractNearly 97% of organic chemicals in Hong Kong leachate could be effectively removed by the UASB(upflow anaerobic sludge blanket) process followed by the fenton coagulation. The COD of leachate was lowered from an average of 12900 mg/L to 1440 mg/L after the UASB treatment, and was further lowered to 394 mg/L after the fenton coagulation. The remaining refractory residues could be further removed by ozonation with the addition of H2O2. The ozonation for the supernatant of the fenton coagulation was most effective at pH 7-8, with the addition of 300 mg/L of H2O2, and 30 min of reaction. The final effluent contained only 85 mg/L of COD and 10 mg/L of BOD5. On the other hand, direct ozonation of UASB effluent lowered the COD to 905 mg/L and BOD5 to 103 mg/L. Ozonation improved the biodegradability of the organic residues, and also converted part of organic-N in the leachate into NH3-N and NO-3-N.en_HK
dc.languageengen_HK
dc.publisherI O S Press. The Journal's web site is located at http://www.iospress.nl/html/10010742.phpen_HK
dc.relation.ispartofJournal of Environmental Sciencesen_HK
dc.subject.meshAnaerobiosisen_HK
dc.subject.meshBiodegradation, Environmentalen_HK
dc.subject.meshBioreactorsen_HK
dc.subject.meshFatty Acids, Volatile - analysisen_HK
dc.subject.meshHong Kongen_HK
dc.subject.meshHydrogen Peroxide - chemistryen_HK
dc.subject.meshNitrogen - analysisen_HK
dc.subject.meshOzone - chemistryen_HK
dc.subject.meshSewageen_HK
dc.subject.meshWater Pollutants, Chemical - metabolismen_HK
dc.subject.meshWater Purification - methodsen_HK
dc.titleOzonation of refractory chemicals in leachate with hydrogen peroxideen_HK
dc.typeArticleen_HK
dc.identifier.emailFang, HPH:hrechef@hkucc.hku.hken_HK
dc.identifier.authorityFang, HPH=rp00115en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid12491723-
dc.identifier.scopuseid_2-s2.0-0036819150en_HK
dc.identifier.hkuros76006en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036819150&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume14en_HK
dc.identifier.issue4en_HK
dc.identifier.spage495en_HK
dc.identifier.epage500en_HK
dc.identifier.isiWOS:000178712000010-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridWang, P=36038733700en_HK
dc.identifier.scopusauthoridLau, WCI=36847559600en_HK
dc.identifier.scopusauthoridFang, HPH=7402542625en_HK

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