Portable Activity/Toxicity Meter

Portable Activity/Toxicity Meter

A portable BOD meter is programmed to evaluate biomass activity and waste-stream toxicity in as little as 15 minutes using the specific oxygen uptake rate (SOUR). The results, in milligrams of oxygen consumed per hour per gram of biomass, can be used to evaluate the activity of an activated-sludge mixed liquor or the stability of digested waste-activated sludge. A second pre-programmed test takes up to two hours and evaluates the immediate and recovery oxygen. Results, in milligrams of oxygen per liter, determine the toxicity, treatability, or inhibitory characteristics of an influent stream or compound. The meter, which uses the microbes from the treatment system to determine toxicity, is designed to give results correlatable to treatment plant response. The meter monitors DO as the test proceeds, automatically graphs and stores the data, calculates the test results, and prints out a report. The size of a large briefcase, the meter can be used in the field with rechargeable batteries or as a benchtop instrument.

Bioscience, Inc., 1550 Valley Center Parkway, Suite 140, Bethlehem, PA 18017 Tel: (610) 974-9693; Fax: (610) 691-2170; email: bioscience@aol.com.