Modifications to electrolytic respirometer systems for precise determination of BOD exertion kinetics in receiving waters

Hickey, Christopher W.; Nagels, John W.

doi:10.1016/0043-1354(85)90038-7

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…An electrolytic respirometer was used in determination of BOD exertion kinetics. In the electrolytic respirometer, oxygen was supplied by electrolysis of water and the oxygen consumption was calculated from electrical current (Hickey and Nagels, 1985). In another experiment, the polarographic determinations based on the Clark oxygen sensors (U.S. Patent 2913 386) was used to measure oxygen in investigating oxidative cell metabolism (Haller et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Respirometric Monitoring for the Determination of Effective Height and Reaction Rate Constant in Up-Flow Autotrophic Denitrification Reactor Packed with Sulfur

Kim

Park

2005

Environ Monit Assess

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A novel technology for the removal of nitrogen from wastewater, autotrophic denitrification process with sulfur particle, has been developed. A respirometer was employed for the monitoring of nitrogen gas produced in the reactor. It was found that the autotrophic denitrification studied by gas production rate and nitrate depletion rate followed a first order reaction from the relationship. The reaction rate constant based on effective volume, k(N) was ranged from 2.67 to 3.07 h(-1). The effective height was around 23.8 and 50% of the total height for 11.8 and 5.9 h of packed bed contact time, respectively. It was assumed that the reaction rate constants were similar in each experimental condition, PBCT = 11.9 and 5.9 h because there was little gradient of biomass concentration within 50% of the total height. The respirometry was found to be a simple and fast way to monitor the denitrification process. The method was especially useful for the determination of kinetic parameters.

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Section: Introductionmentioning

confidence: 99%