On-line respirometer using constant oxygen concentration in reac

Details On-line respirometer using constant oxygen concentration in reac On-line respirometer using constant oxygen concentration in reac

1998-09-03

2000-05-16

Redding, David A.

Chemistry: molecular biology and microbiology

Apparatus

Including measuring or testing

4352866, 422 79, 436 62, C12M 300

Patent

active

060636173

ABSTRACT:
An on-line respirometer for measuring oxygen uptake by wastewater samples, plants, or animals due to respiration. A closed reaction vessel is adapted to receive and expel wastewater samples or the like. The vessel contains oxygen-sensing probes that constantly evaluate the concentration of oxygen either in the headspace of the vessel or in the samples contained in the slurry within the vessel. The oxygen that is consumed during the respiration of the test samples is immediately replaced by concurrent oxygen injection to maintain a constant oxygen concentration in the reaction vessel. This rapid oxygen replacement is accomplished through an oxygen feedback supply circuit that restores oxygen concentration to its original level in a matter of seconds. The respirometer uses a constant air flow system that allows for the precise oxygen level control. Direct measurement of the oxygen injected for equilibrium control is equated to the uptake.

REFERENCES:
patent: 3731522 (1973-05-01), Mikesell
patent: 4783172 (1988-11-01), Garg
patent: 4947339 (1990-08-01), Czekajewski et al.
patent: 5125262 (1992-06-01), Garg
"Bioscan Continuous Toxicity Monitor-System Overview" N-CON Systems Co. Inc.
"Respirometer--Basic, Extra & Advanced Models" Spec. Sheet Minworth Systems Ltd.--Oct. 1991.
"RODTOX--The Instrument for the On-Line Determination of the BOD & Toxicity of Municipal & Industrial Wastewaters" KELMA.
"Bio Monitor BOC Measuring System" LAR Analytik & Umwelt Messtechnik GMBH.
"BIOX-1010" Technical Specifications STIP Siepmann und Teutscher GmbH.

Affiliated with

Also associated with

Rating

On-line respirometer using constant oxygen concentration in reac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with On-line respirometer using constant oxygen concentration in reac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-line respirometer using constant oxygen concentration in reac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-258002