在使用先进的控制策略对分批反应堆式废水处理工艺进行排序时改善废水质量
Indranil Dey1, Seshagiri Rao Ambati2, Prashant Navnath Bhos1
1Department of Chemical Engineering, National Institute of Technology, Warangal 506004, Telangana, India.
概括
这项研究使用序列批量反应器 (SBR) 和修改的步进料SBR (SSBR) 增强了废水处理. 分数比例积分 (FPI) 控制器显著改善了废水质量,降低了空气消耗.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 生物化学工程 生物化学工程
背景情况:
- 污水处理面临着变化的流量,污染物和影响成分的挑战.
- 同时去除和对于有效的城市废水管理至关重要.
- 控制溶解氧气是优化反应堆中的生物处理过程的关键.
研究的目的:
- 评估城市废水处理的测序批量反应堆 (SBR) 和修改的SBR (SSBR) 配置.
- 为了比较比例积分 (PI),分数比例积分 (FPI) 和模糊逻辑控制器用于溶解氧控制的有效性.
- 评估这些控制策略对营养物质去除和废水质量的影响.
主要方法:
- 基于ASM2d框架的SBR和SSBR模型的开发.
- 使用工厂数据设计和实施PI,FPI和模糊逻辑控制算法.
- 对控制器在营养水平,废水质量和空气体积消耗方面的性能进行比较分析.
主要成果:
- 与PI控制器相比,FPI控制器显示营养水平显著降低,整体废水质量提高了0.86%.
- 优化营养供应和通风的SSBR配置,通过FPI控制器实现了大幅度减少11.04%的总空气体积消耗.
- 精细的SSBR方法保持了重要的生物功能,同时最大限度地减少了氧气需求.
结论:
- FPI控制器为SBR和SSBR中溶解氧控制提供了卓越的性能,从而提高了废水质量.
- SSBR配置,加上像FPI这样的先进控制策略,为减少废水处理中的运营成本 (空气消耗) 提供了一种有效的方法.
- 在SSBR中优化空气和营养管理对于可持续和有效的生物营养去除至关重要.
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