콘텐츠 본문
논문 해외 국제일반학술지 Evaluation of the lead and chromium removal capabilities of Bacillus subtilis-induced food waste compost-based biomedia
- 학술지 구분 국제일반학술지
- 게재년월 2023-12
- 저자명 Chang Hyuk Ahn, Woosik Jung, Yoonkyung Park, Jin Chul Joo, Kyoungphile Nam
- 학술지명 Chemosphere
- 발행처명 Pergamon
- 발행국가 해외
- 논문언어 한국어
- 전체저자수 5
- 논문 다운로드 링크(외부) https://www.sciencedirect.com/science/article/pii/S0045653523024566
- 연구분야 공학 > 환경공학
논문 초록 (Abstract)
Food waste compost (FWC) is a sustainable recycling approach employed in soil media, offering extensive advantages to urban areas by promoting resource circulation and effectively managing water pollution. To improve value, Bacillus subtilis (B. subtilis)-induced FWC-based biomedia (BIBMFWCs) was produced via a secondary treatment involving selective meso-thermophilic stages. During the production of BIBMFWCs, physicochemical properties were found to have favorable characteristics for the efficient removal of metal ions. The produced organic-carbonate complex structure demonstrated the synergistic effect involving simultaneous sorption/precipitation mechanisms for the removal of Pb(II) and Cr(III). Also, the dose of B. subtilis has an impact on the pseudo-second-order (PSO) and intraparticle diffusion (IPD) reaction, leading to distinct removal capacities for Pb(II) and Cr(III) [24.26–24.74 mg g− 1 in Pb(II) and 12.7–23.93 mg g− 1 in Cr(III)]. Furthermore, B. subtilis, an inducing mediator for microbial metabolites, exhibits the potential to facilitate the removal of Pb(II) and Cr(III) through biological modification of raw materials, which are transformed, facilitating the presence of hydroxyl groups, immobilizing metal ions, and enabling ion exchange via biogenic carbonate formation processes. Finally, the developed BIBMFWCs could be used as a naturebased solution (NBS) material without in-situ pH control.
