Grantee Research Project Results
A Compact, Low-Cost, Near-UV Sensor for Chlorine Dioxide
EPA Contract Number: EPD06057Title: A Compact, Low-Cost, Near-UV Sensor for Chlorine Dioxide
Investigators: Bomse, David S.
Small Business: Southwest Sciences Inc.
EPA Contact: Richards, April
Phase: I
Project Period: March 1, 2006 through August 31, 2006
Project Amount: $70,000
RFA: Small Business Innovation Research (SBIR) - Phase I (2006) RFA Text | Recipients Lists
Research Category: Hazardous Waste/Remediation , SBIR - Homeland Security , Small Business Innovation Research (SBIR)
Description:
Southwest Sciences proposes the development of an optical, near-ultraviolet chlorine dioxide (ClO2) sensor having a measurement range of about 0.01 to 2000 ppm with a response time of less than 10 seconds. The sensor will be compact—about the size of a 1-quart milk carton including electronic and optics, operate at low power, and be outfitted with a wireless communications interface to permit remote, unattended operation. Intrinsically safe design is possible. The proposed measurement method is linear, free of hysteresis, and free of interference from common atmospheric gases as well as urban and industrial pollutants. The sensors will operate well at high humidity and will be able to tolerate moisture condensation. Analyzers will retain calibration for extended periods (many months).
Commercial applications include real-time sensors for monitoring and controlling ClO2 decontamination of buildings and other enclosed spaces and for monitoring ClO2 water purification processes and facilities. In Phase II, Southwest Sciences will try to extend the diode-laser method to chlorine detection, which will provide extra utility for characterization and for monitoring combined ClO2/Cl2 decontamination and purifications processes. Southwest Sciences also plans to participate in the U.S. Environmental Protection Agency Environmental Technology Verification (ETV) Program to establish performance specifications for the prototype analyzer.
Supplemental Keywords:
small business, SBIR, chlorine dioxide, chlorine dioxide detection, optical sensor, chlorine dioxide monitoring, chlorine dioxide decontamination, air quality, public health, EPA, ETV, building decontamination, water decontamination,, RFA, Scientific Discipline, Ecosystem Protection/Environmental Exposure & Risk, Environmental Chemistry, Monitoring/Modeling, Environmental Engineering, Environmental Monitoring, field detection, atmospheric chemistry, chlorine dioxide, indoor air, atmospheric measurements, continuous monitoring, air quality assessmentsProgress and Final Reports:
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.