一种准确而强大的方法来加强废水污泥管道的流量
Noman Yousuf1, Nimmi Kurukulasuriya1, Andrew Chryss2
1Chemical and Environmental Engineering, RMIT University, VIC 3000, Australia.
The Science of the total environment
|July 31, 2024
概括
废水处理厂的过程强化需要准确预测高度缩的废水污泥 (HCWS) 管道流量. 新的风学特征和直接数值模拟 (DNS) 的新方法可以准确预测HCWS流,改进管道系统设计.
科学领域:
- 环境工程 环境工程
- 流体力学 流体力学 流体力学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 污水处理厂 (WWTPs) 正在加剧处理过程,使用高度废水污泥 (HCWS) 含有4-6%重量的固体.
- 非牛顿式的行为和高温水泥的粘度增加对污泥管道流动和送构成了挑战.
- 准确预测HCWS流管道流量对于设计高效的抽水基础设施至关重要.
研究的目的:
- 开发准确的方法来进行HCWS的风湿学特征.
- 使用直接数值模拟 (DNS) 来执行HCWS流管流的数值预测.
- 通过实验数据验证这些预测,并将其与传统方法进行比较.
主要方法:
- 使用WWTP的管道循环设施对消化的污泥 (2-5%的固体) 的淋病学表征.
- 直接数值模拟 (DNS) 流管流的HCWS,避免传统的流模型.
- 对DNS预测与试验性流管道流量数据的验证.
主要成果:
- 通过管道流量实验,获得了HCWS准确的风湿学参数.
- DNS计算提供了HCWS流管道流量的准确预测,误差为2-15%.
- 传统的管道流量相关性显示出明显更高的错误 (高达~75%).
结论:
- 准确的风湿学特征和DNS对于预测HCWS流管流量至关重要.
- 开发的方法为优化WWTP管道系统提供了可靠的基础.
- 这项研究支持废水处理厂的工艺强化.
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