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Phosphorus Adsorption and Nitric Acid Reduction by Ferrous Sulfate-Treated Foamed Waste Glass
Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
Recycle Center, COCCO Co., Kure City, Hiroshima
- 1 Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
- 2 Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
- 3 Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
- 4 Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
- 5 Faculty of Environmental Science, Prefectural University of Hiroshima, Hiroshima, Japan
- 6 Recycle Center, COCCO Co., Kure City, Hiroshima
Journal of Materials Science and Chemical Engineering·Volume 06 (2018)·Pages 21–30·Published 16 March 2018·DOI10.4236/msce.2018.63002
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Abstract
Wastewaters containing phosphorus and nitric acid are produced during biological treatment processes. In this study, a material for treating such wastewaters was developed. Foamed glass was produced from waste glass and then heated with iron sulfate to prepare an adsorbent for phosphorus and carrier for reducing nitric acid. The adsorbent performance was evaluated in batch and continuous experiments. The saturated adsorption amount of phosphate was 6.23 mg/g for the product obtained from glass of size 3 to 12 mm; the amount adsorbed was relatively high, in spite of the large glass size. The denitrification by reduction of nitrate was around 25%.
KeywordsFoamed Waste GlassIron LoadedAdsorbentPhosphorus RecoveryContinuous Column Experiment
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