Long-term consumption of water containing excessive fluoride can lead to fluorosis of the teeth and bones. Electrocoagulation is an electrochemical technique, in which a variety of unwanted dissolved particles and suspended matter can be effectively removed from an aqueous solution by electrolysis. Semi continuous flow experiments for fluoride removal were undertaken to investigate the effects of the different parameters such as: applied voltage (10–20 V), flow rate (150–450 mL/min), initial pH (6–8), and initial fluoride concentration (2–10 mg/L) at lowest cost with novel rector. The maximum of 8 mg/L fluoride treated up to World Health Organization drinking limits within 30 min residual time at a flow rate of 300 mL/min, with an applied voltage of 15 V at influent pH 7. The results obtained, showed that this novel semi continuous flow electrocoagulation reactor is an effective for defluoridation of ground water supplies at lower cost.

中文翻译：

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混合圆柱电凝反应器去除地下水中的氟化物

长期消耗含过量氟化物的水会导致牙齿和骨骼的氟中毒。电凝是一种电化学技术，其中可以通过电解有效地从水溶液中除去各种不需要的溶解颗粒和悬浮物。进行了用于除氟的半连续流实验，以研究不同参数的影响，例如：施加电压（10–20 V），流速（150–450 mL / min），初始pH（6–8）和初始新型整流器以最低的成本获得氟化物浓度（2-10 mg / L）。在残留时间30分钟内，以300 mL / min的流速，在流入pH值为7的条件下施加15 V的电压，最多可处理8 mg / L的氟化物，达到世界卫生组织的饮水极限。