Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1991-10-21
1993-03-02
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 79, 422 62, 436 62, 436 52, 435291, 204403, G01N 3112
Patent
active
051907283
ABSTRACT:
A fouling monitor and method for sensing fouling in commercial waters and for differentiating between microbiological fouling and chemical fouling, which includes a dissolved oxygen probe disposed in a slip stream of water and means for providing an abundance of oxygen and nutrient to the microbial activity whereby a decrease in dissolved oxygen level is sensed due to the increased respiration of the microbes when microbiological fouling occurs. A polyester screen is mounted over the sensing end of the dissolved oxygen probe to promote microbiological fouling by providing a means for engaging the microbes and to enhance differentiation between the biological component and the non-viable/chemical component.
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K. Riedel, et al., "A Microbial Sensor For BOD", Wat. Res., vol. 24, No. 7, pp. 883-887 (1990).
I. Karube, et al., "A Rapid Method for Estimation of BOD by Using Immobilized Microbial Cells", U. Ferment. Technol. vol. 55, pp. 243-248 (1977).
Cantrall Jeffrey R.
Robertson Linda R.
Housel James C.
Nalco Chemical Company
Tran Lien
Zickert Lloyd L.
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