This work concerns the preparation of a mineral membrane by the slip casting method based on zirconium oxide (ZrO2) and kaolin. The membrane support is produced from a mixture of clay (kaolin) and calcium carbonate (calcite) powders using heat treatment (sintering). Membrane and support characterization were performed by Scanning Electron Microscopy (SEM), X-ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Raman Spectroscopy. The prepared mineral membrane was tested to treat drinking water obtained from different zones of the El Athmania (Algeria) water station (raw, coagulated, decanted, and bio filtered water). Experimental parameters such as permeate flux, turbidity, and total coliforms were monitored. The results showed that the mineral membrane was mainly composed of SiO2 and Al2O3 and the outer surface, which represented the membrane support, was much more porous than the inner surface where the membrane was deposited. The permeate flux of the raw water decreased with filtration time, due to a rejection of the organic matters contained in the raw water. Moreover, the absence of total coliforms in the filtrate and the increase in concentration in the concentrate indicate that the prepared mineral membrane can be used for drinking water treatment.

中文翻译：

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氧化锆基陶瓷膜的制备及其在饮用水处理中的应用

这项工作涉及通过基于氧化锆 (ZrO2) 和高岭土的泥浆浇铸法制备矿物膜。膜载体是由粘土（高岭土）和碳酸钙（方解石）粉末的混合物通过热处理（烧结）制成的。通过扫描电子显微镜 (SEM)、X 射线荧光 (XRF)、傅立叶变换红外光谱 (FTIR)、X 射线衍射 (XRD) 和拉曼光谱对膜和载体进行表征。测试制备的矿物膜处理从 El Athmania（阿尔及利亚）水站不同区域获得的饮用水（原水、凝结水、倾析水和生物过滤水）。监测诸如渗透通量、浊度和总大肠菌群等实验参数。结果表明，矿物膜主要由SiO2和Al2O3组成，代表膜载体的外表面比沉积膜的内表面多孔得多。由于原水中含有的有机物被截留，原水的渗透通量随着过滤时间而降低。此外，滤液中没有总大肠菌群，浓缩液中的浓度增加，表明制备的矿物膜可用于饮用水处理。