| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.2588 |
| 발표분야 |
환경 |
| 제목 |
Recovery of Ru from industrial wastewater by using biosortption followed by incineration |
| 초록 |
Biosorption has been recognized as an alternative to conventional processes for the recovery of precious metals from aqueous and wastewater. Conventionally, metal recovery methods can be divided in two broad categories: hydrometallurgical and pyrometallurgical processes. In this study, we carry out the incineration as a pyrometallurgical process after biosorption as a hydrometallurgical process. The waste biomass of Corynebacterium glutamicum, generated from lysine fermentation industry, was used as a raw material. The raw biomass was modified with poly-ethylenimine (PEIB) to enhance the Ru sorption capacity and then the carboxyl groups of the PEIB were esterified by anhydrous methanol under acidic condition to more develop the metal binding amine sites and to remove the interfering carboxylic sites. The resulting decarboxylated PEI-coated biosorbent (DC-PEIB) showed 2.1 times enhanced uptake capacity than the raw biomass. The XRD analysis indicated that the Ru was able to be purified during incineration. It was therefore noted that the combined method of biosorption and incineration could be effective for concentration and recovery of Ru from the industrial wastewater. |
| 저자 |
송명희, 원성욱, 고유림, 임아름, 윤성일, 고성원, 윤영상
|
| 소속 |
전북대 |
| 키워드 |
Biosorption; Incineration; Ruthenium; Recovery
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
