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首页> 外文期刊>Journal of Environmental Management >Determination of granule size distribution in a UASB reactor
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Determination of granule size distribution in a UASB reactor

机译：确定UASB反应器中的粒度分布

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摘要

Granular sludge is the key factor for an efficient operation of an upflow anaerobic sludge blanket (UASB) reactor. In order to monitor the granularity of anaerobic sludge, the determination of the granule size distribution is of vital importance. For this reason, several techniques have been proposed; however, they are either tedious, imprecise or expensive and hardly applicable in full-scale treatment plants. There was then the need for a simple and low-cost technique. This technique involves the determination of the settling velocities of a sludge sample and of extrapolating the corresponding diameters using a mathematical algorithm. In the proposed algorithm, the granules density was calculated, the flow regime was examined and finally the granule size distribution was obtained. Two very important correlations were suggested by the experimental results. The granule density and diameter were strongly correlated with the VSS/TSS ratio.
机译：颗粒污泥是高效运行厌氧污泥层（UASB）反应器的关键因素。为了监测厌氧污泥的粒度，确定粒度分布至关重要。因此，已经提出了几种技术。然而，它们要么单调乏味，不精确或昂贵，要么几乎不适用于大规模的处理厂。因此，需要一种简单且低成本的技术。该技术涉及使用数学算法确定污泥样品的沉降速度并外推相应的直径。在该算法中，计算了颗粒的密度，检查了流态，最后获得了颗粒尺寸分布。实验结果表明了两个非常重要的相关性。颗粒密度和直径与VSS / TSS比密切相关。

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