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Article: Thermophilic acidification of dairy wastewater

TitleThermophilic acidification of dairy wastewater
Authors
Issue Date2000
PublisherSpringer. The Journal's web site is located at http://link.springer.de/link/service/journals/00253/index.htm
Citation
Applied Microbiology and Biotechnology, 2000, v. 54 n. 3, p. 439-444 How to Cite?
AbstractAcidification of simulated dairy wastewater was conducted in an upflow reactor at 55 °C. Results showed that the degree of acidification decreased with the increase in chemical oxygen demand (COD) loading rate, from 60.8% at 4 g l-1 day-1 to 27.1% at 24 g l-1 day-1. Carbohydrate was readily degraded at all loading rates, but degradation of protein and lipid decreased with the increase in loading rate. Most carbohydrate degradation occurred at the reactor bottom, whereas protein was degraded mainly after the carbohydrate became depleted. The predominant acidification products were acetate, propionate, butyrate and ethanol, whereas formate, i-butyrate, valerate, i-valerate, caproate, lactate, methanol, propanol and butanol were present in lesser quantities. The increase in loading rate resulted in the increase of propionate and the decrease of acetate, but had little effect on ethanol and butyrate productions. Only 2.5-8.8% of influent COD was converted to hydrogen and methane. The biomass yield was 0.30-0.43 mg VSS mg-1 COD.
Persistent Identifierhttp://hdl.handle.net/10722/150147
ISSN
2015 Impact Factor: 3.376
2015 SCImago Journal Rankings: 1.262
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYu, HQen_US
dc.contributor.authorFang, HHPen_US
dc.date.accessioned2012-06-26T06:01:50Z-
dc.date.available2012-06-26T06:01:50Z-
dc.date.issued2000en_US
dc.identifier.citationApplied Microbiology and Biotechnology, 2000, v. 54 n. 3, p. 439-444en_US
dc.identifier.issn0175-7598en_US
dc.identifier.urihttp://hdl.handle.net/10722/150147-
dc.description.abstractAcidification of simulated dairy wastewater was conducted in an upflow reactor at 55 °C. Results showed that the degree of acidification decreased with the increase in chemical oxygen demand (COD) loading rate, from 60.8% at 4 g l-1 day-1 to 27.1% at 24 g l-1 day-1. Carbohydrate was readily degraded at all loading rates, but degradation of protein and lipid decreased with the increase in loading rate. Most carbohydrate degradation occurred at the reactor bottom, whereas protein was degraded mainly after the carbohydrate became depleted. The predominant acidification products were acetate, propionate, butyrate and ethanol, whereas formate, i-butyrate, valerate, i-valerate, caproate, lactate, methanol, propanol and butanol were present in lesser quantities. The increase in loading rate resulted in the increase of propionate and the decrease of acetate, but had little effect on ethanol and butyrate productions. Only 2.5-8.8% of influent COD was converted to hydrogen and methane. The biomass yield was 0.30-0.43 mg VSS mg-1 COD.en_US
dc.languageengen_US
dc.publisherSpringer. The Journal's web site is located at http://link.springer.de/link/service/journals/00253/index.htmen_US
dc.relation.ispartofApplied Microbiology and Biotechnologyen_US
dc.subject.meshAlcohols - Metabolismen_US
dc.subject.meshBiomassen_US
dc.subject.meshBioreactorsen_US
dc.subject.meshDairyingen_US
dc.subject.meshFatty Acids, Volatile - Metabolismen_US
dc.subject.meshHot Temperatureen_US
dc.subject.meshHydrogen - Metabolismen_US
dc.subject.meshHydrogen-Ion Concentrationen_US
dc.subject.meshMethane - Metabolismen_US
dc.subject.meshOxygen - Metabolismen_US
dc.subject.meshSewageen_US
dc.subject.meshWateren_US
dc.titleThermophilic acidification of dairy wastewateren_US
dc.typeArticleen_US
dc.identifier.emailYu, H: hqyu@hkucc.hku.hken_US
dc.identifier.emailFang, HHP: hrechef@hkucc.hku.hk-
dc.identifier.authorityFang, HHP=rp00115en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid11030584-
dc.identifier.scopuseid_2-s2.0-0033802271en_US
dc.identifier.hkuros60193-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033802271&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume54en_US
dc.identifier.issue3en_US
dc.identifier.spage439en_US
dc.identifier.epage444en_US
dc.identifier.isiWOS:000089510800023-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridYu, HQ=13008678100en_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US

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