Starting up a 5-Stage Bardenpho Plant with In-Line Fermentation - One Step at a Time

Kobylinski, Ed; Barnard, James; Massart, Neil; Kleiwer, Amy; Crabtree, Isaac; Wirth, Michelle; Foster, Joe; Newton, Les; Phillips, Heather

doi:10.2175/193864713813685647

Cited by 4 publications

(2 citation statements)

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“…This process diverts 5-15% of the anaerobic mixed liquor to a sidestream reactor with an HRT of 5-15 hours with the effluent being sent back to the anoxic zone of the mainstream. This process is in use at the Cedar Creek facility in Olathe, Kansas (Kobylinski et al, 2013). Lastly, Figure 2.2f shows an unmixed in-line MLSS fermentation configuration where a portion of the anaerobic zone in the mainstream process reduces mixing or completely stops mixing to allow fermentation to occur in the reactor.…”

Section: )mentioning

confidence: 99%

Sidestream RAS Fermentation for Stable Bio-P Combined with Short Cut Nitrogen Removal in an A/B Process

Ferguson

Campolong

Klaus

et al. 2018

proc water environ fed

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Section: )mentioning

confidence: 99%

Sidestream RAS Fermentation for Stable Bio-P Combined with Short Cut Nitrogen Removal in an A/B Process

Ferguson

Campolong

Klaus

et al. 2018

proc water environ fed

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“…The first purpose-built MLF in the world was utilized at the Cedar Creek Wastewater Treatment Plant (CCWTP) in Olathe KS (Kobylinski, 2013). Ongoing operational activities, biological process modelling, and bench scale testing at CCWTP are being used to better predict the VFA production capacity of the MLF.…”

Section: Mixed Liquor Fermentationmentioning

confidence: 99%

Population balance models: a useful complementary modelling framework for future WWTP modelling

Torfs

Ducoste

Vanrolleghem

et al. 2014

Water Science and Technology

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Population balance models (PBMs) represent a powerful modelling framework for the description of the dynamics of properties that are characterised by distributions. This distribution of properties under transient conditions has been demonstrated in many chemical engineering applications. Modelling efforts of several current and future unit processes in wastewater treatment plants could potentially benefit from this framework, especially when distributed dynamics have a significant impact on the overall unit process performance. In these cases, current models that rely on average properties cannot sufficiently capture the true behaviour and even lead to completely wrong conclusions. Examples of distributed properties are bubble size, floc size, crystal size or granule size. In these cases, PBMs can be used to develop new knowledge that can be embedded in our current models to improve their predictive capability. Hence, PBMs should be regarded as a complementary modelling framework to biokinetic models. This paper provides an overview of current applications, future potential and limitations of PBMs in the field of wastewater treatment modelling, thereby looking over the fence to other scientific disciplines.

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Survey of full‐scale sidestream enhanced biological phosphorus removal (S2EBPR) systems and comparison with conventional EBPRs in North America: Process stability, kinetics, and microbial populations

Onnis‐Hayden

Srinivasan

Tooker

et al. 2019

Water Environment Research

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Sidestream EBPR (S2EBPR) is an emerging alternative process to address common challenges in EBPR related to weak wastewater influent and may improve EBPR process stability. A systematic evaluation and comparison of the process performance and microbial community structure was conducted between conventional and S2EBPR facilities in North America. The statistical analysis suggested higher performance stability in S2EBPR than conventional EBPR, although possible bias associated with other plant‐specific factors might have affected the comparison. Variations in stoichiometric values related to EBPR activity and discrepancies between the observed values and current model predictions suggested a varying degree of metabolic versatility of PAOs in S2EBPR systems that warrant further investigation. Microbial community analysis using various techniques suggested comparable known candidate PAO relative abundances in S2EBPR and conventional EBPR systems, whereas the relative abundance of known candidate GAOs seemed to be consistently lower in S2EBPR facilities than conventional EBPR facilities. 16S rRNA gene sequencing analysis revealed differences in the community phylogenetic fingerprints between S2EBPR and conventional facilities and indicated statistically higher microbial diversity index values in S2EBPR facilities than those in conventional EBPRs. Practitioner Points Sidestream EBPR (S2EBPR) can be implemented with varying and flexible configurations, and they offer advantages over conventional configurations for addressing the common challenges in EBPR related to weak wastewater influent and may improve EBPR process stability. Survey of S2EBPR plants in North America suggested statistically more stable phosphorus removal performance in S2EBPR plants than conventional EBPRs, although possible bias might affect the comparison due to other plant‐specific factors. The EBPR kinetics and stoichiometry of the S2EBPR facilities seemed to vary and are associated with metabolic versatility of PAOs in S2EBPR systems that warrant further investigation. The abundance of known candidate PAOs in S2EBPR plants was similar to those in conventional EBPRs, and the abundance of known candidate GAOs was generally lower in S2EBPR than conventional EBPR facilities. Further finer‐resolution analysis of PAOs and GAOs, as well as identification of other unknown PAOs and GAOs, is needed. Microbial diversity is higher in S2EBPR facilities compared with conventional ones, implying that S2EBPR microbial communities could show better resilience to perturbations due to potential functional redundancy.

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Starting up a 5-Stage Bardenpho Plant with In-Line Fermentation - One Step at a Time

Cited by 4 publications

References 0 publications

Sidestream RAS Fermentation for Stable Bio-P Combined with Short Cut Nitrogen Removal in an A/B Process

Sidestream RAS Fermentation for Stable Bio-P Combined with Short Cut Nitrogen Removal in an A/B Process

Population balance models: a useful complementary modelling framework for future WWTP modelling

Survey of full‐scale sidestream enhanced biological phosphorus removal (S2EBPR) systems and comparison with conventional EBPRs in North America: Process stability, kinetics, and microbial populations

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