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Inhibition of nucleation and crystal growth of calcium carbonate in hard waters using Paronychia arabica in an arid desert region
Water and Environment Journal ( IF 2 ) Pub Date : 2020-05-29 , DOI: 10.1111/wej.12596
Amina Karar 1 , Abdellah Henni 2 , Farid Namoune 1 , Federico Rosei 3
Affiliation  

The formation of CaCO3 of groundwater has important implications in the industry. Many conventional scale inhibitors are considered environmentally unfriendly. In this study, we investigate the effect of aqueous extract of Paronychia arabica (PA) as new green antiscalant agents on the precipitation of CaCO3 in an arid desert region. The antiscaling properties of these extracts towards CaCO3 formation were tested using chronoamperometry (CA), electrochemical impedance spectroscopy (EIS) and Fast Controlled Precipitation methods. Electrochemical and chemical analysis of Mkhadma groundwater shows a high calcium concentration and the deposit is a pure calcite. The nucleation and formation time were identified. At 32°C, a complete scaling inhibition was obtained using a concentration of 150 mg/L of green extract. The scale inhibitor effect was analysed by an optical microscopic examination.

中文翻译:

干旱荒漠地区使用Paronychia arabica抑制硬水中碳酸钙的成核和晶体生长

地下水中CaCO 3的形成对工业具有重要意义。许多常规的阻垢剂被认为对环境不利。在这项研究中,我们研究了作为新的绿色防垢剂的阿拉伯甲沟炎(PA)的水提物对CaCO 3沉淀的影响。在干旱的沙漠地区。使用计时电流法(CA),电化学阻抗谱(EIS)和快速控制沉淀法测试了这些提取物对CaCO3形成的防垢性能。姆卡德玛(Mkhadma)地下水的电化学和化学分析显示,钙浓度很高,沉积物是纯方解石。确定了成核和形成时间。在32°C下,使用浓度为150 mg / L的绿色提取物可完全抑制结垢。通过光学显微镜检查分析了阻垢剂的作用。
更新日期:2020-05-29
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