Journal article
The role of protein contents in promoting wastewater phosphorus and bioenergy recovery during anaerobic digestion
Biomass & bioenergy, Vol.169, 106694
02/2023
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Abstract
Proteins present in domestic and industrial wastewater, yet their role in nutrient and energy recovery during anaerobic digestion (AD) has not been well understood. This study aimed to examine the impact of feedwater protein content on the calcium phosphate (CaP) precipitation under a low supersaturation condition and the methane production in an AD process. Four 1.0 L upflow anaerobic sludge blanket (UASB) reactors were fed with the synthetic feeds with different protein contents. The results showed that the amino acid degradation caused the pH elevation, triggering the CaP precipitation. A 25% bovine serum albumin (BSA) content in the feedwater helped shape a superior microbial community that contributed to a methanisation rate of 82.7%. The high prevalence of the phylum Synergistetes and the methanogen Methanosaeta suggested that methane was mainly produced through the acetate utilization.
Details
- Title
- The role of protein contents in promoting wastewater phosphorus and bioenergy recovery during anaerobic digestion
- Creators
- Huijuan Sun - University of AlbertaXinya Yang - University of AlbertaLei Zhang - University of AlbertaYang Liu - University of Alberta
- Publication Details
- Biomass & bioenergy, Vol.169, 106694
- Publisher
- Elsevier
- Number of pages
- 8
- Grant note
- China Scholarship Council (CSC); China Scholarship Council Canada Research Chair (CRC) Program in Future Water Services Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grants Program; Natural Sciences and Engineering Research Council of Canada (NSERC)
- Identifiers
- 991013125987902368
- Copyright
- © 2022 Elsevier Ltd. All rights reserved.
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Journal article