Fate of cellulose in primary and secondary treatment at municipal water resource recovery facilities

© 2019 Water Environment Federation.

Bibliographische Detailangaben
Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 91(2019), 11 vom: 11. Nov., Seite 1479-1489
1. Verfasser: Ahmed, Ahmed Shawki (VerfasserIn)
Weitere Verfasser: Bahreini, Gholamreza, Ho, Dang, Sridhar, Ganesh, Gupta, Medhavi, Wessels, Coos, Marcelis, Pim, Elbeshbishy, Elsayed, Rosso, Diego, Santoro, Domenico, Nakhla, George
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Journal Article biodegradability cellulose primary clarifier rotating belt filter wastewater Sewage Waste Water Water Pollutants, Chemical Cellulose 9004-34-6
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520 |a Cellulose from toilet paper is a significant fraction of particulate organics, which is recoverable. For the first time, comprehensive mapping and tracking the fate of cellulose across various unit processes at full-scale in two water resource recovery facilities located in North America and Europe was undertaken. The influent cellulose content accounted for approximately one-third of the total suspended solids (TSS). Although about 80% of the raw wastewater cellulose was removed in primary treatment, the type of primary treatment process (rotating belt filter [RBF] vs. primary clarification [PC]) had a significant impact on cellulose capture and diversion. The high cellulose content of the RBF sludge accounting for 35% of the TSS facilitates cellulose recovery. For the North American plant, with a conventional activated sludge process (SRT of 6-7 days, preceded by PC), cellulose biodegradation efficiencies of 70%-90% of the PC effluent were observed in summer and winter. For the European plant, with a modified University of Cape Town process (SRT of 14 days, without primary treatment in train 2, or preceded by RBF in train 1), comparable cellulose biodegradation efficiencies were also observed. Results from laboratory SBRs indicated that cellulose biodegradation efficiency at room temperature was 86% of the influent cellulose. PRACTITIONER POINTS: Cellulose fate was tracked across two different WWTPs in two different geographies. Cellulose in the influent wastewater accounted for 1/3 of the total suspended solids. Primary treatments were able to capture more than 80% of the influent cellulose. Cellulose was biodegraded in secondary treatment, resulting an effluent of 2-3 mg/L 
650 4 |a Journal Article 
650 4 |a biodegradability 
650 4 |a cellulose 
650 4 |a primary clarifier 
650 4 |a rotating belt filter 
650 4 |a wastewater 
650 7 |a Sewage  |2 NLM 
650 7 |a Waste Water  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Cellulose  |2 NLM 
650 7 |a 9004-34-6  |2 NLM 
700 1 |a Bahreini, Gholamreza  |e verfasserin  |4 aut 
700 1 |a Ho, Dang  |e verfasserin  |4 aut 
700 1 |a Sridhar, Ganesh  |e verfasserin  |4 aut 
700 1 |a Gupta, Medhavi  |e verfasserin  |4 aut 
700 1 |a Wessels, Coos  |e verfasserin  |4 aut 
700 1 |a Marcelis, Pim  |e verfasserin  |4 aut 
700 1 |a Elbeshbishy, Elsayed  |e verfasserin  |4 aut 
700 1 |a Rosso, Diego  |e verfasserin  |4 aut 
700 1 |a Santoro, Domenico  |e verfasserin  |4 aut 
700 1 |a Nakhla, George  |e verfasserin  |4 aut 
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773 1 8 |g volume:91  |g year:2019  |g number:11  |g day:11  |g month:11  |g pages:1479-1489 
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