揭示了在高温下液处理的生物过程动力学:整个工厂的动态模拟和实验验证验证
Didem Güven1, Emine Çokgör1, Gülsüm Emel Zengin1
1Istanbul Technical University, Environmental Engineering Department, 34469 Maslak, Istanbul, Turkey.
Waste management (New York, N.Y.)
|July 31, 2025
概括
高温影响垃圾填埋场的液处理,因为它改变了化剂动力学,并促进了糖原积聚生物 (GAO) 而不是积聚生物 (PAO). 溶解的氧气和温度是这些生物过程动态的关键因素.
科学领域:
- 环境科学 环境科学
- 环境工程 环境工程
- 微生物学 微生物学
背景情况:
- 垃圾填埋场液处理带来了重大的环境挑战.
- 了解不同温度下的生物过程动力学对于有效治疗至关重要.
研究的目的:
- 研究高温对垃圾填埋污水处理厂 (LLTP) 生物过程动力学的影响.
- 评估温度对化剂生长和衰变速度的影响,以及异质变体动力学.
- 模拟整个工厂的动态,并确定影响处理效率的关键因素.
主要方法:
- 在不同温度 (25°C和35°C) 下对生物过程动力学的实验研究.
- 全厂范围的动态模型模拟以分析过程行为.
- 氨氧化细菌 (AOB) 和酸盐氧化细菌 (NOB) 的生长和衰变速度的区分.
主要成果:
- 化剂的生长和衰变速度随温度而有显著的变化,而异质性动力学则显示了轻微的变化.
- 溶解氧 (DO) 和温度被确定为影响AOB和NOB动态的主要因素.
- 由于反应剂度低,自由氨 (FA) 和自由酸 (FNA) 的抑制是最小的.
- 在有限的DO条件下,在高温下,糖原积聚生物 (GAO) 在高温下超过了积聚生物 (PAO).
结论:
- 温度显著影响化剂种群和在LLTP中GAO和PAO之间的竞争.
- DO和温度是优化生物营养物质去除的关键控制参数.
- 动态建模为LLTP在各种操作条件下的性能提供了有价值的见解.
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