Biochem Technology, Inc.

Marcus E Kolb

Sergey K Maneshin

Xin Yang

Jaw Fang Lee

William B Armiger

Jaw E Lee

The present invention relates to apparatus and a method for measuring ammonia in biochemical processes, and more particularly to apparatus for real time measuring the amount of ammonia in a liquid with or without suspended solids.

Method for measuring ammonia in biochemical processes

The invention relates to apparatus and a method for measuring NO,in biochemical processes, and to apparatus and methods for real time measuring the nitrification and/or denitrification rate of a liquid with or without suspended solids.

Method of measuring a nitrification rate for liquids

Apparatus for measuring ammonia in biochemical processes

A method for measuring NO.sub.x in biochemical processes which includes a) isolating a liquid sample; b) adjusting the pH or ionic strength of the sample; c) recording mV values present in the sample after predetermined time periods; d) determining NO.sub.x concentrations in the sample at each of the predetermined time periods from the mV values; e) determining the difference in NO.sub.x in the sample from the NO.sub.x concentrations at each of the predetermined time periods; and f) determining the NO.sub.x concentration of the liquid sample from the difference in NO.sub.x and the predetermined time periods.

Method for measuring NO.sub.x in biochemical processes

Apparatus which monitors and controls biological activity of wastewater under anaerobic, anoxic and aerobic conditions by measuring changes in dissolved oxygen content of the wastewater and/or cellular NADH. A wastewater treatment system is controlled in accordance with the results generated by the monitoring system.

Apparatus and method for monitoring and controlling biological activity

Apparatus which monitors and controls biological activity of mixed liquor under anaerobic, anoxic and aerobic conditions by measuring the change of intracellular NAD(P)H of the microorganisms. A wastewater treatment system is controlled in accordance with the results generated by the monitoring system.

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Phoenixville, PA, United States of America

Marcus E Kolb