File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Scopus: eid_2-s2.0-0032724965
- WOS: WOS:000083352700010
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Substrate degradation of propionate-utilizing sludge
Title | Substrate degradation of propionate-utilizing sludge |
---|---|
Authors | |
Keywords | Anaerobic Butyrate Degradation Propionate Rate |
Issue Date | 1999 |
Publisher | Selper Ltd. The Journal's web site is located at http://www.environtechnol.co.uk |
Citation | Environmental Technology, 1999, v. 20 n. 10, p. 1103-1108 How to Cite? |
Abstract | A propionate-utilizing sludge was enriched in a chemostat reactor for over 90 days. Its methanogenic degradation characteristics were investigated in batch reactors using various substrates. The suspended-growth sludge degraded propionate at 0.65 mg-COD (mg-VSS d)-1, which is comparable to the rate reported in the literature for the granular sludge in a UASB reactor. The propionate-degrading rate was not affected by the presence of butyrate as a co-substrate initially; but it was lowered substantially as propionate concentration became below 100 mg l-1. The sludge was also able to degrade butyrate at 0.52 mg-COD (mg-VSS d)-1, which is about 30% of the rate reported for granular sludge in a UASB reactor treating butyrate as the sole substrate. The butyrate-degrading rate was lowered when propionate was present at high concentrations. In the interim of butyrate degradation, several higher-molecular weight acids were detected in the mixed liquor, including i-butyrate, i-valerate and caproate; valerate was, however, detected only in the batch when the P(H2) was as high as 10-1.8 atm. The presence of formate lowered the degrading rates of both propionate and butyrate. |
Persistent Identifier | http://hdl.handle.net/10722/71171 |
ISSN | 2023 Impact Factor: 2.2 2023 SCImago Journal Rankings: 0.540 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jia, XS | en_HK |
dc.contributor.author | Fang, HHP | en_HK |
dc.date.accessioned | 2010-09-06T06:29:34Z | - |
dc.date.available | 2010-09-06T06:29:34Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | Environmental Technology, 1999, v. 20 n. 10, p. 1103-1108 | en_HK |
dc.identifier.issn | 0959-3330 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/71171 | - |
dc.description.abstract | A propionate-utilizing sludge was enriched in a chemostat reactor for over 90 days. Its methanogenic degradation characteristics were investigated in batch reactors using various substrates. The suspended-growth sludge degraded propionate at 0.65 mg-COD (mg-VSS d)-1, which is comparable to the rate reported in the literature for the granular sludge in a UASB reactor. The propionate-degrading rate was not affected by the presence of butyrate as a co-substrate initially; but it was lowered substantially as propionate concentration became below 100 mg l-1. The sludge was also able to degrade butyrate at 0.52 mg-COD (mg-VSS d)-1, which is about 30% of the rate reported for granular sludge in a UASB reactor treating butyrate as the sole substrate. The butyrate-degrading rate was lowered when propionate was present at high concentrations. In the interim of butyrate degradation, several higher-molecular weight acids were detected in the mixed liquor, including i-butyrate, i-valerate and caproate; valerate was, however, detected only in the batch when the P(H2) was as high as 10-1.8 atm. The presence of formate lowered the degrading rates of both propionate and butyrate. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Selper Ltd. The Journal's web site is located at http://www.environtechnol.co.uk | en_HK |
dc.relation.ispartof | Environmental Technology | en_HK |
dc.subject | Anaerobic | en_HK |
dc.subject | Butyrate | en_HK |
dc.subject | Degradation | en_HK |
dc.subject | Propionate | en_HK |
dc.subject | Rate | en_HK |
dc.title | Substrate degradation of propionate-utilizing sludge | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0959-3330&volume=20&spage=1103 &epage= 1108&date=1999&atitle=Substrate+degradation+of+propionate-utilizing+sludge | en_HK |
dc.identifier.email | Fang, HHP:hrechef@hkucc.hku.hk | en_HK |
dc.identifier.authority | Fang, HHP=rp00115 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-0032724965 | en_HK |
dc.identifier.hkuros | 51639 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0032724965&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 20 | en_HK |
dc.identifier.issue | 10 | en_HK |
dc.identifier.spage | 1103 | en_HK |
dc.identifier.epage | 1108 | en_HK |
dc.identifier.isi | WOS:000083352700010 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Jia, XS=7201933791 | en_HK |
dc.identifier.scopusauthorid | Fang, HHP=7402542625 | en_HK |
dc.identifier.issnl | 0959-3330 | - |