TITLE:
Phosphorus Adsorption and Nitric Acid Reduction by Ferrous Sulfate-Treated Foamed Waste Glass
AUTHORS:
Asmak Afiliana, Harada Hiroyuki, Katayama Yumi, Nishikawa Hanami, Mitoma Yoshiharu, Tomoyuki Miyamoto
KEYWORDS:
Foamed Waste Glass, Iron Loaded, Adsorbent, Phosphorus Recovery, Continuous Column Experiment
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.6 No.3,
March
19,
2018
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%.