在不同温度下使用浸泡空气过器进行高速化.
Saquib Sarosh1, Sreenivasan Ramaswami1
1Centre for Sustainable Technologies, Indian Institute of Science, Bengaluru, Karnataka, India.
概括
这项研究研究了沉浸式空气过器 (SAF) 中温度对化的影响,从15°C到30°C发现稳定的性能. SAF 具有强大的,高化率,适合各种气候.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生物废水处理 生物废水处理
背景情况:
- 温度显著影响生物化过程.
- 生物膜反应器通常比悬浮生长系统更能耐受低温.
- 固定床反应堆,如浸泡空气过器 (SAF),比移动床生物膜反应堆 (MBBR) 提供更高的化率,并且不太容易堵塞.
研究的目的:
- 为了研究温度对实验室级化SAF化性能的影响.
- 为了确定SAF化最佳温度范围.
- 为了比较SAF化率与其他生物膜反应堆类型.
主要方法:
- 在大约1500gN·m−3·d−1.1的体积氨加载率 (vALR) 上运行实验室规模的化SAF.
- 在9°C至30°C的温度范围内测试了性能.
- 开发了一个sigmoid函数来建模表面特异性氨氧化率 (sAOR) 的温度依赖性.
主要成果:
- 表面特定的氨和酸盐氧化率 (sAOR和sNOR) 在15°C和30°C之间保持稳定.
- 在10°C时,sAOR和sNOR分别下降到大约1.19和0.92gN·m−2·d−1.
- 实现的表面特异性化率与生物气化过器 (BAF) 报告的最高值相当,并且至少是MBBR的2.5倍.
结论:
- 氧化在广泛的温度范围内 (15°C-30°C) 提供了强大而高效的高化率.
- 开发的sigmoid模型准确地预测了SAFs中sAOR的温度影响.
- 由于其高效率和稳定性,SAF是热带,亚热带和温带气候中化的一个有前途的技术.
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