Authors: Kim, Ijung; Kim, Sang-Hyoun; Shin, Hang-Sik; Jung, Jin-Young

Source: Proceedings of the Water Environment Federation, WEFTEC 2006: Session 31 through Session 40 , pp. 2576-2592(17)

Publisher: Water Environment Federation

Abstract:

LCFAs, the intermediate products in lipid biodegradation are known to inhibit microorganisms by their toxicity and floatation. To reduce LCFA inhibition, two-phase anaerobic system, consisting of anaerobic sequencing batch reactor (ASBR) and upflow anaerobic sludge blanket (UASB) reactor, was applied to synthetic dairy wastewater. During 153 days of continuous operation, two-phase system showed stable performance in lipid degradation. In ASBR performance, failure due to high organic loading (19.2 g COD/L/day) was observed. Except failure period, 13% of lipid removal efficiency and 10% of double bond removal efficiency were maintained. In UASB performance, COD, lipid and VFA removal efficiencies up to organic loading rate 6.5 g COD/L/day were more than 80%, 70%, 95%, respectively. There was no operational problem like serious scum formation and sludge washout. Protein degradation was more favorable for microorganisms rather than lipid degradation.

Document Type: Research article

DOI: http://dx.doi.org/10.2175/193864706783751212

Publication date: 2006-01-01

More about this publication?

• Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.
  
  WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
• Subscribe to this Title
• Membership Information
• About WEF Proceedings
• WEFTEC Conference Information
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Earth and Environmental Sciences ,  General & Civil Engineering ,  Hydraulic & Environmental Engineering
• By this author: Kim, Ijung ;  Kim, Sang-Hyoun ;  Shin, Hang-Sik ;  Jung, Jin-Young

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers