Evaluation of Methylene Blue and Rose Bengal for Dye Sensitized Solar Water Treatment-Reference-Cited by-同舟云学术

Evaluation of Methylene Blue and Rose Bengal for Dye Sensitized Solar Water Treatment

Published:2002-08-01 Issue:3 Volume:124 Page:305-310
ISSN:0199-6231
Container-title:Journal of Solar Energy Engineering
language:en
Short-container-title:

Author:

Cooper Adrienne T.¹,Goswami D. Yogi²

Affiliation:

1. University of South Carolina, Civil and Environmental Engineering Department, 300 Main Street, Columbia, SC 20208

2. Solar Energy and Energy Conservation Laboratory, University of Florida, Mechanical Engineering Department, Gainesville, FL 32601

Abstract

The experimental work described in this paper evaluated the efficacy of dyes as sensitizing agents for solar photochemical detoxification and disinfection of water. Methylene blue and rose bengal were evaluated as photosensitizing agents. While neither dye was effective for detoxification, methylene blue showed some efficacy for photodisinfection over natural sunlight. In all sunlight experiments, methylene blue effected a coliform reduction ranging from 96% at pH 7 and lower methylene blue concentrations, to 99.5% for all concentrations at pH 10 and the 10 mg/L concentration for pH 7. The 99.5% reduction at pH 7 is comparable to 74% reduction at the same pH using sunlight alone. Significant coliform reduction was also observed in dark experiments with 10 mg/L of methylene blue.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/solarenergyengineering/article-pdf/124/3/305/5518455/305_1.pdf

Reference30 articles.

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