LAPSE:2022.0128
Published Article
LAPSE:2022.0128
Evaluation of a Full-Scale Suspended Sludge Deammonification Technology Coupled with an Hydrocyclone to Treat Thermal Hydrolysis Dewatering Liquors
November 6, 2022
Suspended sludge deammonification technologies are frequently applied for sidestream ammonia removal from dewatering liquors resulting from a thermal hydrolysis anaerobic digestion (THP/AD) process. This study aimed at optimizing the operation, evaluate the performance and stability of a full-scale suspended sludge continuous stirred tank reactor (S-CSTR) with a hydrocyclone for anaerobic ammonia oxidizing bacteria (AMX) biomass separation. The S-CSTR operated at a range of nitrogen loading rates of 0.08−0.39 kg N m−3 d−1 displaying nitrogen removal efficiencies of 75−89%. The hydrocyclone was responsible for retaining 56−83% of the AMX biomass and the washout of ammonia oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) was two times greater than AMX. The solid retention time (SRT) impacted on NOB washout, that ranged from 0.02−0.07 d−1. Additionally, it was demonstrated that an SRT of 11−13 d was adequate to wash-out NOB. Microbiome analysis revealed a higher AMX abundance (Candidatus scalindua) in the reactor through the action of the hydrocyclone. Overall, this study established the optimal operational envelope for deammonification from THP/AD dewatering liquors and the role of the hydrocyclone towards maintaining AMX in the S-CSTR and hence obtain process stability.
Record ID
Keywords
deammonification, hydrocyclone, partial nitritation/anammox, sidestream, thermal hydrolysis process
Suggested Citation
Ochs P, Martin BD, Germain E, Wu Z, Lee PH, Stephenson T, van Loosdrecht M, Soares A. Evaluation of a Full-Scale Suspended Sludge Deammonification Technology Coupled with an Hydrocyclone to Treat Thermal Hydrolysis Dewatering Liquors. (2022). LAPSE:2022.0128
Author Affiliations
Ochs P: Cranfield Water Sciences Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK; Thames Water, Reading STW, Island Road, Reading RG2 0RP, UK
Martin BD: Thames Water, Reading STW, Island Road, Reading RG2 0RP, UK
Germain E: Thames Water, Reading STW, Island Road, Reading RG2 0RP, UK
Wu Z: Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
Lee PH: Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
Stephenson T: Cranfield Water Sciences Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK
van Loosdrecht M: Department of Biotechnology, Delft University of Technology, Building 58, Van der Maasweg 9, 2629 Delft, The Netherlands [ORCID]
Soares A: Cranfield Water Sciences Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK [ORCID]
Martin BD: Thames Water, Reading STW, Island Road, Reading RG2 0RP, UK
Germain E: Thames Water, Reading STW, Island Road, Reading RG2 0RP, UK
Wu Z: Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
Lee PH: Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
Stephenson T: Cranfield Water Sciences Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK
van Loosdrecht M: Department of Biotechnology, Delft University of Technology, Building 58, Van der Maasweg 9, 2629 Delft, The Netherlands [ORCID]
Soares A: Cranfield Water Sciences Institute, Cranfield University, College Road, Cranfield MK43 0AL, UK [ORCID]
Journal Name
Processes
Volume
9
Issue
2
First Page
278
Year
2021
Publication Date
2021-02-01
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr9020278, Publication Type: Journal Article
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Published Article
LAPSE:2022.0128
This Record
External Link
doi:10.3390/pr9020278
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Version History
[v1] (Original Submission)
Nov 6, 2022
Verified by curator on
Nov 6, 2022
This Version Number
v1
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URL Here
https://psecommunity.org/LAPSE:2022.0128
Original Submitter
Mina Naeini
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