对聚酸盐积聚生物体的碳源选择在增强生物去除中的经济效益
Jing Yuan1, Liping Chen1, Xiaojing Xie1
1School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
Environmental research
|December 10, 2025
概括
对于废水处理厂 (WWTP) 来说,选择合适的碳源来增强生物去除 (EBPR) 是至关重要的. 代谢建模显示,使用葡萄糖的Microlunatus phosphovorus可提供最佳的去除,对环境影响较低.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 废水处理 废水处理
背景情况:
- 增强生物去除 (EBPR) 广泛用于废水处理厂 (WWTP).
- 选择不同碳来源用于EBPR的经济和环境影响尚不清楚.
- 优化碳源选择是提高EBPR系统效率和可持续性的关键.
研究的目的:
- 评估优化的聚酸盐积聚生物 (PAO) -碳源组合.
- 评估碳来源对去除效率,成本,二氧化碳排放和O2需求的影响.
- 在EBPR中提供一种基于模型的机制方法,用于选择可持续的碳来源.
主要方法:
- 使用了代谢建模和碳流量分析.
- 三个代表性的PAO (Ca. 其他细菌 (如Accumulibacter,Microlunatus phosphovorus,Tetrasphaera) 进行了评估.
- 六个碳来源 (乙酸盐,乳酸盐,糖酸盐,酸盐,谷氨酸,葡萄糖) 评估了它们对P去除,成本,CO2排放和O2需求的影响.
主要成果:
- 使用葡萄糖的Microlunatus phosphovorus表现出最高的P去除效率,低CO2排放和O2需求.
- 为了加利福尼亚. 根据Accumulibacter,乳酸是最经济的碳来源,其次是酸盐,而酸盐呈现出高O2需求和成本.
- 氨基酸 (亚斯巴酸,谷氨酸) 是最不具成本效益的,原因是高成本和二氧化碳排放.
结论:
- 在PAO-碳源相互作用中存在显著差异,影响EBPR性能和环境足迹.
- 使用葡萄糖的Microlunatus phosphovorus为EBPR提供了一个高效和环保的选择.
- 该研究为选择WWTP中具有成本效益和可持续的碳管理策略提供了有价值的见解.
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