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首页> 外文OA文献 >Defluoridation of drinking water using a new flow column-electrocoagulation reactor (FCER) - Experimental, statistical, and economic approach
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Defluoridation of drinking water using a new flow column-electrocoagulation reactor (FCER) - Experimental, statistical, and economic approach

机译：使用新的流动柱电凝抗液反应器（FCER） - 实验，统计和经济方法等饮用水偏氟化

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A new batch, flow column electrocoagulation reactor (FCER) that utilises a perforated plate flow column as a mixer has been used to remove fluoride from drinking water. A comprehensive study has been carried out to assess its performance. The efficiency of fluoride removal (R%) as a function of key operational parameters such as initial pH, detention time (t), current density (CD), inter-electrode distance (ID) and initial concentration (C0) has been examined and an empirical model has been developed. A scanning electron microscopy (SEM) investigation of the influence of the EC process on morphology of the surface of the aluminium electrodes, showed the erosion caused by aluminium loss. A preliminary estimation of the reactor's operating cost is suggested, allowing for the energy from recycling of hydrogen gas hydrogen gas produced amount. The results obtained showed that 98% of fluoride was removed within 25 min of electrolysis at pH of 6, ID of 5 mm, and CD of 2 mA/cm(2). The general relationship between fluoride removal and operating parameters could be described by a linear model with R(2) of 0.823. The contribution of the operating parameters to the suggested model followed the order: t > CD > C0 > ID > pH. The SEM images obtained showed that, after the EC process, the surface of the anodes, became non-uniform with a large number of irregularities due to the generation of aluminium hydroxides. It is suggested that these do not materially affect the performance. A provisional estimate of the operating cost was 0.379 US $/m(3). Additionally, it has been found that 0.6 kW/m(3) is potentially recoverable from the H2 gas.
机译：新的批次，流动柱电凝抗器（FCER），其用作混合器的穿孔板流量柱用于除去含水水的氟化物。已经进行了全面的研究以评估其表现。氟化物去除（R％）作为关键操作参数的函数，例如初始pH，滞留时间（T），电流密度（CD），电极距离（CD）和初始浓度（C0），并且已经开发了经验模型。扫描电子显微镜（SEM）对EC过程对铝电极表面形态的影响，表明铝损失引起的侵蚀。提出了对反应堆运营成本的初步估计，从而允许能量从氢气氢气产生的量产生的量。得到的结果表明，在6，ID为5mm的pH值的25分钟内除去98％的氟化物，以及2mA / cm（2）的Cd。氟化物去除和操作参数之间的一般关系可以通过r（2）为0.823的线性模型来描述。操作参数对建议模型的贡献遵循命令：t> cd> c0> id> pH。所获得的SEM图像显示，在EC过程之后，由于氢氧铝的产生，阳极的表面具有大量不规则性的阳极均匀。建议这些不会物质影响性能。运营成本的临时估计为0.379美元/ m（3）。另外，已经发现0.6kW / m（3）可能从H 2气体中恢复。

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