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首页> 外文会议>International Conference on Advances in Materials and Manufacturing >A Preliminary Investigation on the Preparation of Bagasse Fly Ash as Clarifying Aid for Clarification of Cane Juice
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A Preliminary Investigation on the Preparation of Bagasse Fly Ash as Clarifying Aid for Clarification of Cane Juice

机译：甘蔗渣粉煤灰制备初步调查，澄清甘蔗汁的澄清

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The bagasse fly ash (BFA), an industrial solid waste of sugar industry, was used to facilitate the clarification of cane juice. After being grounded, washed, rinsed and dried, the BFA was added into the juice before the clarification process including heating the juice to 60°C, coagulation with magnesium sulfate at pH=11.0, flocculation with PAM, and then settling and filtration. The effect of BFA on purification indexes including turbidity, purity and color value of the clarified juice, and the addition of BFA on the settling and filtration rates were investigated. The results shown that while having little effect on the purification indexes, the addition of BFA could intensify the solid-liquid separation of the clarification. The gravity settling was significantly improved with the addition of BFA, with an addition at 1.5%, the mud thickening rate at free settling phase was increased from 20.7 mL/min without addition of BFA to 270mL/rnin and the final mud volume reduced from 48.0% of the total volume to 32.3%, the settling time being about 5 minutes. With the addition of BFA, the filtration rate increased significantly, the filter cake specific resistance was reduced from 562.8 kg-s-m~(-4) without addition of BFA to 31.2kg-s-m~(-4) with the BFA addition of 1.5%, making the filtration feasible. The optimum addition of BFA and the pressure drop for the filtration were 1.5% and 0.1MPa respectively.
机译：Bagasse Fly Ash（BFA）是糖业的工业固体浪费，用于促进甘蔗汁的澄清。接地后，洗涤，冲洗和干燥，在澄清过程之前将BFA加入汁液中，包括将果汁加热至60℃，用pH = 11.0硫酸镁凝结，用粉刺絮凝，然后沉淀和过滤。研究了BFA对净化指标的影响，包括澄清汁的浊度，纯度和颜色值，并在沉降和过滤速率上添加BFA。结果表明，同时对纯化指数几乎没有影响，添加BFA可以加剧澄清的固液分离。加入BFA的重力沉降显着改善，加入为1.5％，无需加入BFA至270ml / rnin的自由沉降相的泥浆增稠速率增加，最终泥浆体积从48.0降低总体积的百分比为32.3％，沉降时间约为5分钟。随着BFA的添加，过滤速率显着增加，滤饼特异性抗性从562.8kg-sm〜（-4）降低，而不加入BFA至31.2kg-Sm〜（-4），BFA添加1.5％ ，使过滤可行。最佳加入BFA和过滤的压降分别为1.5％和0.1MPa。

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