A second pre-programmed test takes up to two hours and evaluates the immediate and recovery oxygen uptake associated with the introduction of an influent stream or compound to a biomass. Oxygen uptake date is collected for 1 to 2 hours, and results are reported in milligrams of oxygen per liter to determine the toxicity, treatability or inhibitory characteristics of the influent stream or compound. Unlike other "toxicity" monitors which use marine microbes or bioluminescence, this BOD instrument uses the actual microbes from the treatment system to determine toxicity. The results are directly correlatable to treatment plant response.
The EZ-BOD device is pre-programmed to perform SOUR tests (U.S. 503 Sludge Regulations); one-hour biotreatability evaluations (ASTM-Method 4478); ST-BOD BOD5 estimation tests; and dissolved oxygen measurements. The size of a large briefcase, it can be used in the field with rechargeable batteries or as a bench-top instrument.
Bioscience, Inc., 1550 Valley Center Parkway, Suite 140, Bethlehem, PA 18017: Tel. 610-974-9693; Fax. 610-691-2170.