Biofouling Monitor

Period of Performance: 09/15/2000 - 09/14/2002


Phase 2 SBIR

Recipient Firm

Bridger Scientific, Inc.
P.O. Box 1923
Sandwich, MA 02563
Principal Investigator

Research Topics


Bridger Scientific, Inc. proposed to develop an inexpensive, real time monitor which utilizes proven surface, "heat transfer loss" monitoring techniques to measure both microbial and abiotic fouling on surfaces exposed to coolant seawater. The monitor will be designed as a small insertion probe, capable of being "hot tapped" into existing cooling water pipelines. Real time data generated by the probe will provide a means of monitoring and segregating both microbial and abiotic fouling deposit buildup. The probe will allow a means of simulating both heat transfer surface temperatures and tube/plate materials found in various cooling system heat exchangers. Correlation of probe microbiofouling data due to seawater cooling system fouled surfaces will be determined. The monitor, when utilized within a "feedback loop", with adjustable chemical injection pumps, will be able to accurately monitor and control microbiological and/or scale buildup within cooling water systems under changing water quality and operating conditions. BENEFITS: An on-line fouling monitor, packaged in an insertion probe configuration, is useful for monitoring obth biotic and abiotic fouling simultaneously and will have potential as a biofouling control feedback loop in one component.