食品废弃物的发酵:一种可持续的电子供体,用于酸盐生物降解
Lijie Cheng1, Ningbo Gao2, Cui Quan1
1Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Waste management (New York, N.Y.)
|June 3, 2023
概括
食品废弃物发酵有效降解酸盐 (ClO4-),没有添加微生物. 这种可持续的方法利用食物废弃物作为成本效益高的电子捐赠者,用于化物生物修复.
科学领域:
- 环境微生物学 环境微生物学
- 生物修复是一种生物修复.
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 过酸盐 (ClO4-) 污染对环境和健康构成风险.
- 微生物化物减少需要外部电子捐赠者和碳来源.
- 生物修复需要可持续且具有成本效益的电子捐赠者.
研究的目的:
- 为了评估食品废弃物的发酵 (FBFW) 作为酸盐生物降解的电子捐赠者.
- 调查FBFW在酸盐去除过程中对微生物群落结构的影响.
- 评估FBFW在连续水箱反应堆 (CSTR) 中的性能,以进行酸盐降解.
主要方法:
- 在无氧条件下用FBFW化甲酸盐.
- 对酸盐去除速率和化学参数 (乙酸盐,) 的分析.
- 使用分子技术进行微生物社区分析.
- 使用FBFW运行5升CSTR,用于连续降解甲酸盐.
主要成果:
- 没有无氧注射液 (F-96) 的FBFW实现了最高的酸盐去除率 (127.09 mg/L/d),与高酸盐和低水平相关.
- 使用FBFW的CSTR系统在217.39g/m3·d的加载率下证明了100%的酸盐去除效率.
- 微生物社区分析确定了蛋白质细菌和德罗马纳斯是酸盐生物降解中的关键参与者.
结论:
- 食品废弃物的发酵是一种可行且具有成本效益的电子供体,用于化物生物降解.
- FBFW支持在批量和连续系统中有效去除甲酸盐.
- 这种方法为食品废弃物利用和酸盐修复提供了一种新的方法.
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