厨房废物堆肥液刺激了WWTP中的内源性同时化和脱化途径
Hangtao Jin1, Ke Xu1, Tao Ding1
1College of Energy Environment and Safety Engineering, China Jiliang University, Hangzhou, 310018, China.
Environmental research
|August 13, 2025
概括
厨房废弃物 (CL) 在废水处理厂 (WWTP) 中增加了高达95%的去除. 它还改变了微生物群落,建议一种新的异质化-脱化途径,以优化管理.
科学领域:
- 环境微生物学 环境微生物学
- 水处理技术水处理技术
- 生物地质化学循环的过程
背景情况:
- 废水处理厂 (WWTP) 在有效的除方面面临着挑战.
- 厨房废物 (CL) 是一种易于获得的有机化合物的来源.
- 外部碳来源对于优化脱过程至关重要.
研究的目的:
- 通过使用测序批量反应器 (SBR) 调查厨房废物 (CL) 对WWTP中化和脱化的影响.
- 分析特定的CL成分对无氧和有氧脱路径的影响.
- 探索CL作为外部碳源的潜力,以提高除和减少温室气体排放.
主要方法:
- 利用测序批量反应器 (SBR) 模拟WWTP条件,使用不同的CL混合比率.
- 分析了去除效率和微生物社区的变化.
- 研究了特定碳来源 (酸盐,酸,乳酸) 对脱基因丰度 (narG,norB,nirS/K,napA,nosZ) 和通路的影响.
主要成果:
- CL显著提高了去除效率,达到大约95%.
- 结合素改变了参与脱的微生物群落,在1.5%的混合比率下观察到最佳效果.
- 特定的碳成分对微生物种群和脱路径产生了不同的影响;乳酸促进了N2的产生,而酸和酸则影响了不同的减少酶基因.
结论:
- 厨房废物 (CL) 是WWTP的可行和有效的外部碳来源,改善了去除率.
- 提出了一种由CL驱动的新型异构化-脱化 (HN-AD) 途径.
- 在WWTP中优化CL应用可以提高管理和减轻温室气体排放.
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