| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-환경·에너지 |
| 제목 |
Synthesis of high quality boehmite and gamma-alumina for phosphorus removal from water works sludge by extraction and hydrothermal treatment |
| 초록 |
Alum sludge from water treatment was calcined and extracted to synthesize high quality boehmite and alumina for phosphate removal. Synthesized boehmite and alumina removed phosphate quickly. Boehmite (hydrothermal treatment at 60°C) showed maximum phosphate removal (adsorption) of 61 mg P/g followed by alumina (50 mg P/g) and the boehmite hydrothermally treated at 120°C (41 mg P/g). The degree of crystallinity gave more effect on phosphate adsorption of boehmite than that of alumina. The lower the pH, the more phosphate adsorbed on the boehmite and alumina. Spectroscopic analysis (SEM EDS and FTIR) indicates that phosphate are removed by ligand exchange, electrostatic attraction, and surface precipitation on the synthesized boehmite and alumina. |
| 저자 |
김동진1, Tuan van Truong1, 김진철2
|
| 소속 |
1한림대, 2강원대 |
| 키워드 |
Aluminum recovery; alum sludge; boehmite; alumina; phosphate removal
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| E-Mail |
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