Development of floating phosphorus adsorbent using low temperature molten glass and recovery of phosphorus from biomass waste
Project/Area Number |
15K00605
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Environmental conscious materials and recycle
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Research Institution | Prefectural University of Hiroshima |
Principal Investigator |
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Project Period (FY) |
2015-10-21 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 吸着 / 廃ガラス / 発泡体 / 鉄担持 / リン酸 / 硝酸 / 牡蠣殻 / 発泡ガラス / リン酸イオン / 吸着材 / 硝酸イオン / 炭酸カルシウム / 発泡廃ガラス / リン / 牡蠣殻粉末 / リン吸着 / ガラス発泡体 / 担持 / 鉄 / 脱着 |
Outline of Final Research Achievements |
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%.The addition of oyster shell powder before firing and iron loading of foamed waste glass were studied to improve the capacity of foamed waste glass as a phosphorus adsorbent. The effect of addition of less than 5% oyster shell powder was small, but addition of 10% oyster shell powder resulted in adsorption of 20.8 mg/g phosphorus.
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Report
(4 results)
Research Products
(8 results)