2017 Fiscal Year Final Research Report
Development of floating phosphorus adsorbent using low temperature molten glass and recovery of phosphorus from biomass waste
| Project/Area Number |
15K00605
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental conscious materials and recycle
|
|---|
| Research Institution | Prefectural University of Hiroshima |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2015-10-21 – 2018-03-31
|
| Keywords | 吸着 / 廃ガラス / 発泡体 / 鉄担持 / リン酸 / 硝酸 / 牡蠣殻 |
|---|
| 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.
|
| Free Research Field |
分離工学
|
