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Description: Impact of Temperature on Cellulose Degradation in Wastewater Treatment
Impact of Temperature on Cellulose Degradation in Wastewater Treatment
Abstract
This study investigated the degradation of cellulose in SBR systems at different temperatures (10, 17, 27, and 33°C) and two SRTs (15 and 3 days) to explore the impact of operational conditions on cellulose removal. Cellulose concentrations in mixed liquor at different temperatures were 18-81 mg/L at SRT of 15 days and 31-57 mg/L at SRT of 3 days, accounting for only 1%-5% of MLSS by weight. Cellulose effluent concentrations at different temperatures were similar i.e. 2-4 mg/L at both SRTs. Degradation efficiency of cellulose increased with higher temperature i.e. 80%-90% at an SRT of 15 days and 78%-85% at an SRT of 3 days. The estimated biomass-specific degradation rates were 13-24 mg cellulose/gVSS/day at an SRT of 15 days and 96-104 mg cellulose/gVSS/day at an SRT of 3 days. Temperature correction factors were estimated as 1.025 (SRT of 15 days) and 1.003 (SRT of 3 days).
This study investigated the degradation of cellulose in SBR systems at different temperatures (10, 17, 27, and 33°C) and two SRTs (15 and 3 days) to explore the impact of operational conditions on cellulose removal. Cellulose concentrations in mixed liquor at different temperatures were 18-81 mg/L at SRT of 15 days and 31-57 mg/L at SRT of 3 days, accounting for only 1%-5% of MLSS by weight. Cellulose effluent concentrations at different temperatures were similar i.e. 2-4 mg/L at both SRTs. Degradation efficiency of cellulose increased with higher temperature i.e. 80%-90% at an SRT of 15 days and 78%-85% at an SRT of 3 days. The estimated biomass-specific degradation rates were 13-24 mg cellulose/gVSS/day at an SRT of 15 days and 96-104 mg cellulose/gVSS/day at an SRT of 3 days. Temperature correction factors were estimated as 1.025 (SRT of 15 days) and 1.003 (SRT of 3 days).
SpeakerKim, Mingu
Presentation time
17:30:00
18:00:00
Session time
15:30:00
16:30:00
SessionCellulose Recovery From Wastewater
Session number7F
TopicBiosolids and Residuals, Energy Production, Conservation, and Management, Municipal Wastewater Treatment Design, Research and Innovation
TopicBiosolids and Residuals, Energy Production, Conservation, and Management, Municipal Wastewater Treatment Design, Research and Innovation
Author(s)
M. KimM. ElbahrawiA. AryaeiG. NakhlaD. Santoro
Author(s)M. Kim1; M. Elbahrawi2; A. Aryaei3; G. Nakhla4; D. Santoro5;
Author affiliation(s)Chemical and Biochemical Engineering, University of Western Ohio1; Civil and Environmental Engineering, University of Western Ohio2; USP Technologies, ON3
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2020
DOI10.2175/193864718825157436
Volume / Issue
Content sourceWEFTEC
Copyright2020
Word count10

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