Phosphorus Adsorption and Nitric Acid Reduction by Ferrous Sulfate-Treated Foamed Waste Glass

• 作者: Asmak Afiliana Harada Hiroyuki Katayama Yumi Mitoma Yoshiharu Nishikawa Hanami Tomoyuki Miyamoto
• 来源期刊: 材料科学与化学工程(英文)
• 学科: 医学
• 关键词: Foamed WASTE Glass Iron Loaded ADSORBENT PHOSPHORUS RECOVERY Continuous COLUMN Experiment
• 年，卷（期）: 2018,（3）
• 页码范围: 21-30
• 页数: 10页
• 分类号: R73

摘要

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%.