真空蒸发与无氧消化相结合,用于工艺强化和氨回收:模型开发,验证和场景分析
Amr Mustafa Abdelrahman1, Ali Khadir1, Domenico Santoro2
1Chemical and Biochemical Engineering, University of Western Ontario, Canada.
Bioresource technology
|November 7, 2024
概括
真空蒸发有效地从消化的污泥中去除氨,pH9强化可回收超过76%的,而不影响甲生产. 这种先进的处理方法证明成本中立,与控制场景不同.
科学领域:
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
- 生物技术是生物技术.
背景情况:
- 无氧消化的污泥对营养回收和生物气生产构成了挑战.
- 氨的去除对于优化无氧消化和减轻环境影响至关重要.
- 真空蒸发为废水处理中的氨管理提供了一个潜在的方法.
研究的目的:
- 开发和验证一个数学模型,用于真空蒸发消化污泥中的氨.
- 评估真空蒸发与无氧消化不同的整合策略.
- 评估这些战略的效率,回收,甲生产和经济可行性.
主要方法:
- 开发一个真空蒸发的数学模型.
- 在不同的pH值和温度下对模型进行实验验证.
- 模拟六种情景,将真空蒸发与无氧消化模式结合起来 1.
- 对回收,甲产量和经济表现的分析.
主要成果:
- 在pH9下以真空蒸发作为后处理或强化产生了最好的结果.
- 这些方法回收了超过76%的入污泥.
- 没有观察到对甲生产的负面影响.
- 在pH9的强化证明了成本中立性,超过了控制场景的负净现值.
结论:
- 真空蒸发,特别是在pH9下进行后处理或强化,是从消化的污泥中去除氨和回收的高效策略.
- 这种方法可以提高营养的回收,而不会影响生物气产量.
- 强化真空蒸发在pH9的成本中性经济性能为废水处理提供了一个可持续的解决方案.
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