抄録
Nanoscale Zero Valent Iron (NZVI) is one of the materials that have gained attention in the field of water treatment and environmental remediation in recent years. The main purpose of this study is to develop and evaluate a phosphorus removal system using NZVI particles. The NZVI used for the experiments was synthesized under optimum conditions using the chemical reduction method. This continuous system consisted of Continuous Stirred Flask Reactor (CSFR), settler, polishing unit, and sand column. The continuous experiment showed that 73.84% phosphorus was removed mainly at CSFR. Further, 80.62% total iron was removed and recycled at the settler. Based on the continuous operation results, there was a strong relationship between iron concentration and ORP value (R 2 = 0.9969). This result indicated that ORP would be an important monitoring parameter while operating the continuous system. The aerobic condition contributed the highest phosphorus overall removal efficiency (91.37%) due to the enhancement of iron corrosion. Copper bimetal particles also achieved the highest removal efficiency (94.96%) after increasing the active site and decreasing the solution pH. Finally, comparing the aerobic and bimetallic cases, we concluded that the bimetallic case is the best condition for removing phosphorus because it could treat large solution volume than the aerobic one could.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 30-42 |
| ページ数 | 13 |
| ジャーナル | Journal of Japan Society of Civil Engineers |
| 巻 | 7 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2019 |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Environmental Engineering
これを引用
Development of continuous system based on nanoscale zero valent iron particles for phosphorus removal. / Takami, Seiya; Eljamal, Osama; Khalil, Ahmed M.E.; Eljamal, Ramadan; Matsunaga, Nobuhiro.
：: Journal of Japan Society of Civil Engineers, 巻 7, 番号 1, 01.01.2019, p. 30-42.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Development of continuous system based on nanoscale zero valent iron particles for phosphorus removal
AU - Takami, Seiya
AU - Eljamal, Osama
AU - Khalil, Ahmed M.E.
AU - Eljamal, Ramadan
AU - Matsunaga, Nobuhiro
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Nanoscale Zero Valent Iron (NZVI) is one of the materials that have gained attention in the field of water treatment and environmental remediation in recent years. The main purpose of this study is to develop and evaluate a phosphorus removal system using NZVI particles. The NZVI used for the experiments was synthesized under optimum conditions using the chemical reduction method. This continuous system consisted of Continuous Stirred Flask Reactor (CSFR), settler, polishing unit, and sand column. The continuous experiment showed that 73.84% phosphorus was removed mainly at CSFR. Further, 80.62% total iron was removed and recycled at the settler. Based on the continuous operation results, there was a strong relationship between iron concentration and ORP value (R 2 = 0.9969). This result indicated that ORP would be an important monitoring parameter while operating the continuous system. The aerobic condition contributed the highest phosphorus overall removal efficiency (91.37%) due to the enhancement of iron corrosion. Copper bimetal particles also achieved the highest removal efficiency (94.96%) after increasing the active site and decreasing the solution pH. Finally, comparing the aerobic and bimetallic cases, we concluded that the bimetallic case is the best condition for removing phosphorus because it could treat large solution volume than the aerobic one could.
AB - Nanoscale Zero Valent Iron (NZVI) is one of the materials that have gained attention in the field of water treatment and environmental remediation in recent years. The main purpose of this study is to develop and evaluate a phosphorus removal system using NZVI particles. The NZVI used for the experiments was synthesized under optimum conditions using the chemical reduction method. This continuous system consisted of Continuous Stirred Flask Reactor (CSFR), settler, polishing unit, and sand column. The continuous experiment showed that 73.84% phosphorus was removed mainly at CSFR. Further, 80.62% total iron was removed and recycled at the settler. Based on the continuous operation results, there was a strong relationship between iron concentration and ORP value (R 2 = 0.9969). This result indicated that ORP would be an important monitoring parameter while operating the continuous system. The aerobic condition contributed the highest phosphorus overall removal efficiency (91.37%) due to the enhancement of iron corrosion. Copper bimetal particles also achieved the highest removal efficiency (94.96%) after increasing the active site and decreasing the solution pH. Finally, comparing the aerobic and bimetallic cases, we concluded that the bimetallic case is the best condition for removing phosphorus because it could treat large solution volume than the aerobic one could.
UR - http://www.scopus.com/inward/record.url?scp=85064600227&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85064600227&partnerID=8YFLogxK
U2 - 10.2208/journalofjsce.7.1_30
DO - 10.2208/journalofjsce.7.1_30
M3 - Article
AN - SCOPUS:85064600227
VL - 7
SP - 30
EP - 42
JO - Journal of Japan Society of Civil Engineers
JF - Journal of Japan Society of Civil Engineers
SN - 2187-5103
IS - 1
ER -