Identifying novel wastewater treatment options through optimal technology integration

Solley D., Hu S., Hertle C., Batstone D., Karastergiou-Hogan T., Rider Q. and Keller J. (2015) Identifying novel wastewater treatment options through optimal technology integration. Water Practice and Technology, 10 3: 496-504. doi:10.2166/wpt.2015.057


 
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Author Solley D.
Hu S.
Hertle C.
Batstone D.
Karastergiou-Hogan T.
Rider Q.
Keller J.
Title Identifying novel wastewater treatment options through optimal technology integration
Journal name Water Practice and Technology   Check publisher's open access policy
ISSN 1751-231X
Publication date 2015-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.2166/wpt.2015.057
Open Access Status Not Open Access
Volume 10
Issue 3
Start page 496
End page 504
Total pages 9
Place of publication London, United Kingdom
Publisher IWA Publishing
Language eng
Abstract This paper presents the outcomes of the first of four phases of a research project which aims to investigate the optimal integration of novel, yet largely already demonstrated technologies, in water recycling process train options. The research project has a particular focus on the minimisation of environmental and economic costs in the implementation and operation of the overall recycling process. In the Phase 1 desktop study, novel carbon and nitrogen removal technologies were selected through multi-criteria analysis and incorporated into two concept stage integrated treatment train options. The first treatment train option includes a main-stream anaerobic membrane bioreactor, followed by soluble methane stripping. Nitrogen removal is then achieved with a nitritation/Anammox moving bed biofilm reactor. The second alternative treatment train utilises a high rate/solids contact activated sludge system, with the separated excess biomass treated in a two-stage high-rate anaerobic sludge digester. The digested biosolids stream is treated separately to recover nutrients (as struvite) and to remove nitrogen with a nitritation/Anammox process. Further mainstream nitrogen removal is achieved with a nitrification/denitrification process in a sequencing batch reactor configuration. The two alternative treatment trains were compared to a typical existing treatment train for economics and environmental footprint under Australian conditions at two scales; 10 and 100 ML/d average flow. Engineering analysis included high-level concept design and sizing, estimates of performance, assessment of environmental footprint and whole-of-life cost estimates (including capital and operating expenses). The results of the study indicated that the new treatment trains have the potential to significantly decrease the economic costs of wastewater treatment by between 10 and 46% (based on Net Present Value estimates), and have a lower environmental impact. In Phases 2 and 3, lab-scale and pilot studies are currently underway to further evaluate the performance and confirm the design/operating parameters of the core processes.
Keyword Nutrient recovery
Resource recovery
Sustainability
Technology integration
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
Advanced Water Management Centre Publications
 
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