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Use of Hydrogen Peroxide to Disinfect Hydroponic Plant Growth SystemsHydrogen peroxide was studied as an alternative to conventional bleach and rinsing methods to disinfect hydroponic plant growth systems. A concentration of 0.5% hydrogen peroxide was found to be effective. Residual hydrogen peroxide can be removed from the system by repeated rinsing or by flowing the solution through a platinum on aluminum catalyst. Microbial populations were reduced to near zero immediately after treatment but returned to pre-disinfection levels 2 days after treatment. Treating nutrient solution with hydrogen peroxide and planting directly into trays being watered with the nutrient solution without replenishment, was found to be detrimental to lettuce germination and growth.
Document ID
20100039590
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Barta, Daniel J.
(NASA Johnson Space Center Houston, TX, United States)
Henderson, Keith
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 25, 2013
Publication Date
August 6, 2000
Subject Category
Life Sciences (General)
Report/Patent Number
JSC-CN-6335
Meeting Information
Meeting: 4th Annual Conference on Life Support and Biosphere Science
Location: Baltimore, MD
Country: United States
Start Date: August 6, 2000
End Date: August 9, 2000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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