藻类-细菌快捷路径去除的模型,具有季节性光变化
Sahand Iman Shayan1, Steve Youssef1, Peter van der Steen2
1Department of Civil and Environmental Engineering, University of South Florida, 4202 E Fowler Avenue ENG 030, Tampa, FL 33620, USA.
概括
藻类-细菌快捷去除 (ABSNR) 工艺有效地处理高氨废水,无需通风. 这项研究在自然光下模拟了ABSNR,显示了废水处理厂90%以上的氨去除潜力.
科学领域:
- 环境工程 环境工程
- 废水处理技术 废水处理技术
- 微生物生态学 微生物生态学
背景情况:
- 藻类-细菌快捷除过程 (ABSNR) 为处理高氨废水提供了低能耗解决方案.
- 之前的ABSNR研究使用了人工光周期,不反映现实世界的条件.
- 无氧消化器侧流是一个具有挑战性的高氨废水源.
研究的目的:
- 在模拟的自然光条件下调查ABSNR过程的有效性.
- 开发和验证ABSNR的动态数学模型.
- 评估一个全面的ABSNR系统在去除氨的潜力.
主要方法:
- 实验室规模的光测序批量反应器 (PSBR) 在模拟夏季和冬季的不同光强下运行.
- 创建了一个动态的数学模型,并与实验数据进行校准/验证.
- 对一个全尺寸的PSBR进行了模拟,处理无氧消化器侧流.
主要成果:
- 动态模型准确地描述了藻类和细菌生物质的生长和在自然光下营养的转化.
- 模拟表明,一个全尺寸的PSBR可以实现90%以上的氨去除.
- 通过ABSNR过程,主要废水处理厂的负荷显著降低.
结论:
- 该ABSNR工艺有效地从废水中去除氨,即使在可变的自然光线下.
- 开发的动态模型为优化ABSNR系统提供了有价值的工具.
- ABSNR为废水设施提供一种可持续的,低能耗的方法,以满足严格的除标准.
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