在颗粒状活性炭上合的铁,用于生物生产中的高效固定
Nina Farhana Mohd Jamaludin1, Luqman Chuah Abdullah1, Syazwani Idrus2
1Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor, Malaysia.
Bioresource technology
|October 28, 2023
概括
与铁合的颗粒活性炭 (GAC-N) 通过改善微生物不动化来增强生物的产生. 使用 1:1 污泥与 GAC-N 的比率获得了最佳结果,显著提高了产量和生产率.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 生物生产是一种可持续的能源选择.
- 微生物静止对于高效的生物生成至关重要.
- 铁剂颗粒活性炭 (GAC-N) 作为固定介质被探索.
研究的目的:
- 调查GAC-N在生物生产中的微生物固定效果.
- 为了确定最佳的污泥与GAC-N比率,以提高产量和生产率.
- 评估在不同的液压保留时间 (HRT) 下固定微生物联盟的性能.
主要方法:
- 研究了各种污泥与GAC-N比率 (1:0.5-4).
- 在为期两天的HRT中进行了固定试验.
- 分析了产量 (HY) 和生产率 (HPR).
- 使用分子方法识别了主要的细菌物种.
- 应用了Monod模型来确定运动参数.
主要成果:
- 在1:1的污泥与GAC-N比率下实现最佳的HY和HPR.
- 在2天HRT的固定化后,HY稳定为2.94±0.16mol H2/mol糖消耗量,HPR为83.10±4.61ml H2/L.h.
- 生物生产时间从66天减少到26天,HY增加了57.30%.
- 单极模型参数表明最佳初始糖在20g/L和最大特异生长率在2.05h-1.1时.
- 热氧氧细菌 (Thermoanaerobacterium spp.) 是一种有毒的细菌. 被确定为占主导地位的细菌属.
结论:
- GAC-N是一种有前途的材料,用于微生物固定,以增强生物的生产.
- 优化的污泥比率和HRT显著提高产量和生产效率.
- 这项研究证明了一种可行的方法,可以加速和加强生物的产生.
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