Liquid purification or separation – Processes – Treatment by living organism
Patent
1999-06-30
2000-08-22
Wyse, Thomas G.
Liquid purification or separation
Processes
Treatment by living organism
210903, 436110, C02F 300, G01N 33487
Patent
active
061067180
ABSTRACT:
A method of determining denitrification time for at least a portion of wastewater in a wastewater treatment process including isolating a wastewater sample from the wastewater in the wastewater treatment process; detecting changes in fluorescence emitted by NADH from microorganisms contained within the sample; detecting changes in pH of the sample; analyzing the changes in NADH and pH and establishing that the sample is denitrified at a point where NADH shifts from a steady state or a decreasing state to an increasing state and, substantially simultaneously, the pH shifts from a steady state or an increasing state to a decreasing state; and calculating elapsed time between when the sample was taken and when the sample was denitrified to determine the denitrification time for the portion of the wastewater treatment process.
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Lee Jaw Fang
Maneshin Sergey K.
Yang Xin
Biochem Technology, Inc.
Wyse Thomas G.
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