【摘 要】
：
好氧颗粒污泥工艺在低强度进水条件下存在启动时间长、颗粒化困难、性能不稳定等问题,颗粒化初期的絮体团聚与原始核形成是关键.论文在低负荷进水条件下启动三组SBR反应
【机 构】
：
浙江大学环境工程系,浙江杭州310058浙江大学环境工程系,浙江杭州310058;浙江省水体污染控制与环境安全技术重点实验室,浙江杭州310058
【出 处】
：
第十八次全国环境微生物学学术研讨会
论文部分内容阅读
好氧颗粒污泥工艺在低强度进水条件下存在启动时间长、颗粒化困难、性能不稳定等问题,颗粒化初期的絮体团聚与原始核形成是关键.论文在低负荷进水条件下启动三组SBR反应器,分别投加不同粒径颗粒活性炭(GAC),采用可视化技术研究载体粒径对反应器流场(载体与絮体速度差异)及团聚效果的影响.结果表明,具有高比表面积、zeta电位和良好沉降性的0.2 mm GAC有效促进污泥颗粒化,而投加0.6 mm GAC强化作用不明显.水力学研究发现,粒径为0.2mm的GAC具有与絮体相似的速度场分布.随着GAC粒径的增加,GAC与絮体速度场差异随之增大.
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