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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Experimenta study of flocculation of bentonite and alcaligenes eutrophus in a batch oscillatory baffled flocculator
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Experimenta study of flocculation of bentonite and alcaligenes eutrophus in a batch oscillatory baffled flocculator

机译：Experimenta絮凝的膨润土和学习在一批产碱杆菌属eutrophus振荡困惑絮凝器

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摘要

An experimental investigation is reported of the flocculation of bentonite and Alcaligenes eutrophus in a batch oscillatory baffled flocculator (OBF), where fluid mixing is achieved by eddies that are generated when fluid passes through a set ofequally spaced stationary orifice baffles. Periodically formed vortices can be controlled by a combination of operational and geometrical parameters, such as, oscillation frequency, oscillation amplitude, baffle diameter and baffle spacing. The effect of oscillation frequency and amplitude in the OBF on the percentage of flocculation of both bentonite and Alcaligenes eutrophus was examined, the floc sizes at various operational conditions observed and the strain rates in the OBF measured using a digital particle image velocimetry (DPIV) technique. The results show that the oscillation amplitude is the dominant factor in influencing the percentage of flocculation. The measured strain rate was linked with the percentage of flocculation per ppm polymer dose and the results compared with those obtained in conventional stirred tank flocculators.
机译：一个实验的调查报告絮凝的膨润土和产碱杆菌属eutrophus成批振荡困惑絮凝器(票据),液体混合当流体通过涡流所产生通过一组ofequally间隔固定孔挡板。由操作和控制几何参数,如振荡频率,振荡幅度,挡板直径和挡板间距。频率和振幅的票据絮凝的膨润土和百分比产碱杆菌属eutrophus检查,絮状物观察到的大小在不同的操作条件在票据和应变率测量使用数字粒子图像测速技术(DPIV)技术。振幅是影响的主导因素絮凝的百分比。应变速率与的比例每ppm聚合物絮凝剂和结果相比之下,那些在传统的获得搅拌釜絮凝器。

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