File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: UASB treatment of wastewater containing concentrated benzoate

TitleUASB treatment of wastewater containing concentrated benzoate
Authors
Issue Date1995
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, 1995, v. 121 n. 10, p. 748-751 How to Cite?
AbstractThe upflow anaerobic sludge blanket (UASB) process removed 97-99% of soluble chemical oxygen demand (COD) from wastewater containing concentrated benzoate at 37°C, pH 7.5, a hydraulic retention time of 9.8 h, and loading rates up to 30.6 g-COD/(L · day) based on the reactor volume. About 95.2% of the total COD removed was converted to methane; 0.034 g of volatile suspended solids (VSS) was yielded for each gram of COD removed. The highly settleable granules were 1-3 mm in size with a layered microstructure and were composed in abundance of bacteria resembling the benzoate-degrading Syntrophus buswellii. Two interesting observations have led to the postulation that the degradation of benzoate into acetate was probably conducted completely inside the cell of Syntrophus buswellii-like bacteria: (1) No fatty acids except acetate were found in the effluent; and (2) the granules showed very limited butyrate-degrading capability and could not degrade propionate. This study demonstrated the feasibility of removing aromatic pollutants in wastewater by anaerobic processes. | The upflow anaerobic sludge blanket (UASB) process removed 97-99% of soluble chemical oxygen demand (COD) from wastewater containing concentrated benzoate at 37°C, pH 7.5, a hydraulic retention time of 9.8 h, and loading rates up to 30.6 g-COD/(L · day) based on the reactor volume. About 95.2% of the total COD removed was converted to methane; 0.034 g of volatile suspended solids (VSS) was yielded for each gram of COD removed. The highly settleable granules were 1-3 mm in size with a layered microstructure and were composed in abundance of bacteria resembling the benzoate-degrading Syntrophus buswellii. Two interesting observations have led to the postulation that the degradation of benzoate into acetate was probably conducted completely inside the cell of Syntrophus buswellii-like bacteria: (1) No fatty acids except acetate were found in the effluent; and (2) the granules showed very limited butyrate-degrading capability and could not degrade propionate. This study demonstrated the feasibility of removing aromatic pollutants in wastewater by anaerobic processes.
Persistent Identifierhttp://hdl.handle.net/10722/150057
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, YYen_US
dc.contributor.authorFang, HHPen_US
dc.contributor.authorChen, Ten_US
dc.contributor.authorChui, HKen_US
dc.date.accessioned2012-06-26T06:01:19Z-
dc.date.available2012-06-26T06:01:19Z-
dc.date.issued1995en_US
dc.identifier.citationJournal of Environmental Engineering, 1995, v. 121 n. 10, p. 748-751en_US
dc.identifier.issn0733-9372en_US
dc.identifier.urihttp://hdl.handle.net/10722/150057-
dc.description.abstractThe upflow anaerobic sludge blanket (UASB) process removed 97-99% of soluble chemical oxygen demand (COD) from wastewater containing concentrated benzoate at 37°C, pH 7.5, a hydraulic retention time of 9.8 h, and loading rates up to 30.6 g-COD/(L · day) based on the reactor volume. About 95.2% of the total COD removed was converted to methane; 0.034 g of volatile suspended solids (VSS) was yielded for each gram of COD removed. The highly settleable granules were 1-3 mm in size with a layered microstructure and were composed in abundance of bacteria resembling the benzoate-degrading Syntrophus buswellii. Two interesting observations have led to the postulation that the degradation of benzoate into acetate was probably conducted completely inside the cell of Syntrophus buswellii-like bacteria: (1) No fatty acids except acetate were found in the effluent; and (2) the granules showed very limited butyrate-degrading capability and could not degrade propionate. This study demonstrated the feasibility of removing aromatic pollutants in wastewater by anaerobic processes. | The upflow anaerobic sludge blanket (UASB) process removed 97-99% of soluble chemical oxygen demand (COD) from wastewater containing concentrated benzoate at 37°C, pH 7.5, a hydraulic retention time of 9.8 h, and loading rates up to 30.6 g-COD/(L · day) based on the reactor volume. About 95.2% of the total COD removed was converted to methane; 0.034 g of volatile suspended solids (VSS) was yielded for each gram of COD removed. The highly settleable granules were 1-3 mm in size with a layered microstructure and were composed in abundance of bacteria resembling the benzoate-degrading Syntrophus buswellii. Two interesting observations have led to the postulation that the degradation of benzoate into acetate was probably conducted completely inside the cell of Syntrophus buswellii-like bacteria: (1) No fatty acids except acetate were found in the effluent; and (2) the granules showed very limited butyrate-degrading capability and could not degrade propionate. This study demonstrated the feasibility of removing aromatic pollutants in wastewater by anaerobic processes.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_US
dc.relation.ispartofJournal of Environmental Engineeringen_US
dc.rightsJournal of Environmental Engineering. Copyright © American Society of Civil Engineers.-
dc.titleUASB treatment of wastewater containing concentrated benzoateen_US
dc.typeArticleen_US
dc.identifier.emailFang, HHP: hrechef@hkucc.hku.hken_US
dc.identifier.authorityFang, HHP=rp00115en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1061/(ASCE)0733-9372(1995)121:10(748)en_US
dc.identifier.scopuseid_2-s2.0-0029380463en_US
dc.identifier.hkuros9457-
dc.identifier.volume121en_US
dc.identifier.issue10en_US
dc.identifier.spage748en_US
dc.identifier.epage751en_US
dc.identifier.isiWOS:A1995RV79100012-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, YY=7502096327en_US
dc.identifier.scopusauthoridFang, HHP=7402542625en_US
dc.identifier.scopusauthoridChen, T=25645863800en_US
dc.identifier.scopusauthoridChui, HK=7006642070en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats