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SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY
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Description: Book cover
SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY

SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY

SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY

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Description: Book cover
SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY
Abstract
The Central Davis County Sewer District (CDCSD) conducted a long-term secondary clarifier stress test to verify that state point analysis accurately predicts clarifier capacity. The stress testing indicated that SPA accurately predicted capacity to a much greater degree than previous research as indicated by the following four criteria:Prediction of the thickening failure point.Prediction of relief of thickening failure point.Prediction of equilibrium MLSS concentration.Prediction of sludge blanket elevation.Stress testing included continuos flow meter and solids probe instrumentation ensuring that the clarifier mass balance could be verified. The mathematics of the SPA technique were corrected for situations in which the influent recycle flow does not equal the effluent, as is often the case in treatment facilities with poorly-designed flow splitting structures.At CDCSD, the SPA verification allowed the facility to be successfully rerated to 9.9 mgd from 7.9 mgd without the construction of additional facilities and received approval for the rerating by the Utah Department of Environmental Quality.
The Central Davis County Sewer District (CDCSD) conducted a long-term secondary clarifier stress test to verify that state point analysis accurately predicts clarifier capacity. The stress testing indicated that SPA accurately predicted capacity to a much greater degree than previous research as indicated by the following four criteria:
Author(s)
David J. KinnearLeland MyersMarko HahnDenny Parker
SourceProceedings of the Water Environment Federation
SubjectSession 15 - Plant Operations I: Plant Operations and Maintenance: Clarification and Plant Models
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:15L.361;1-
DOI10.2175/193864701790902923
Volume / Issue2001 / 15
Content sourceWEFTEC
First / last page(s)361 - 385
Copyright2001
Word count167

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Description: Book cover
SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY
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Description: Book cover
SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY
Abstract
The Central Davis County Sewer District (CDCSD) conducted a long-term secondary clarifier stress test to verify that state point analysis accurately predicts clarifier capacity. The stress testing indicated that SPA accurately predicted capacity to a much greater degree than previous research as indicated by the following four criteria:Prediction of the thickening failure point.Prediction of relief of thickening failure point.Prediction of equilibrium MLSS concentration.Prediction of sludge blanket elevation.Stress testing included continuos flow meter and solids probe instrumentation ensuring that the clarifier mass balance could be verified. The mathematics of the SPA technique were corrected for situations in which the influent recycle flow does not equal the effluent, as is often the case in treatment facilities with poorly-designed flow splitting structures.At CDCSD, the SPA verification allowed the facility to be successfully rerated to 9.9 mgd from 7.9 mgd without the construction of additional facilities and received approval for the rerating by the Utah Department of Environmental Quality.
The Central Davis County Sewer District (CDCSD) conducted a long-term secondary clarifier stress test to verify that state point analysis accurately predicts clarifier capacity. The stress testing indicated that SPA accurately predicted capacity to a much greater degree than previous research as indicated by the following four criteria:
Author(s)
David J. KinnearLeland MyersMarko HahnDenny Parker
SourceProceedings of the Water Environment Federation
SubjectSession 15 - Plant Operations I: Plant Operations and Maintenance: Clarification and Plant Models
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2001
ISSN1938-6478
SICI1938-6478(20010101)2001:15L.361;1-
DOI10.2175/193864701790902923
Volume / Issue2001 / 15
Content sourceWEFTEC
First / last page(s)361 - 385
Copyright2001
Word count167

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David J. Kinnear# Leland Myers# Marko Hahn# Denny Parker. SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Web. 12 Oct. 2025. <https://www.accesswater.org?id=-288164CITANCHOR>.
David J. Kinnear# Leland Myers# Marko Hahn# Denny Parker. SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY. Alexandria, VA 22314-1994, USA: Water Environment Federation, 2018. Accessed October 12, 2025. https://www.accesswater.org/?id=-288164CITANCHOR.
David J. Kinnear# Leland Myers# Marko Hahn# Denny Parker
SECONDARY CLARIFIER OPERATIONAL TESTING INCREASES FACILITY CAPACITY
Access Water
Water Environment Federation
December 22, 2018
October 12, 2025
https://www.accesswater.org/?id=-288164CITANCHOR