对称与不对称:在UASB/EGSB反应堆中,气-液-固体 (GLS) 分离器的创新性发展,在一个新的视角上
1Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
概括
一个新的不对称的气液固体分离器提高了废水处理反应堆的效率. 这种创新的设计减少了尺寸和材料的使用,为颗粒和花式污泥的分离提供了更好的性能.
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:
- 传统的对称气体-液体-固体 (GLS) 分离器在上游无氧污泥毯 (UASB) 和扩展颗粒污泥床 (EGSB) 反应堆中面临着诸如高空间占用和能源消耗等挑战.
- 这些局限性阻碍了先进的废水处理工艺的效率.
研究的目的:
- 引入基于流循环的新型GLS分离机制,以改善固体分离.
- 为UASB/EGSB生物反应器开发和评估一种创新的非对称实验室规模的GLS分离器.
主要方法:
- 开发一种不对称的GLS分离器,利用旋流循环诱导的沉积,聚合和回流.
- 实验性测试使用颗粒和花泥.
- 通过计算流体动力学 (CFD) 模拟进行验证.
主要成果:
- 这种新型分离器实现了高分离效率:98.3%的颗粒污泥和96.0%的花污泥.
- 与现有车型相比,不对称的设计使得高度减少了30%左右,材料消耗减少了14.8%.
- 流体污泥分离效率对操作因素很敏感,有利于更高的度和更小的碎片大小.
结论:
- 旋循环诱导的沉积机制为GLS分离提供了一个新的视角.
- 非对称的GLS分离器是UASB/EGSB生物反应器的一个有希望,高效和节约资源的替代方案.
- 根据操作参数,建议进一步优化花污泥的分离.
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