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首页> 外文会议>Joint Conference on Chemistry >Effectiveness Study of Drinking Water Treatment Using Clays/Andisol Adsorbent in Lariat Heavy Metal Cadmium (Cd) and Bacterial Pathogens
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Effectiveness Study of Drinking Water Treatment Using Clays/Andisol Adsorbent in Lariat Heavy Metal Cadmium (Cd) and Bacterial Pathogens

机译：利用重金属镉（CD）和细菌病原体在Lariat / andisol吸附剂中使用粘土处理的有效性研究

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摘要

Water is a natural resource that is essential for all living creatures. In addition, water also caused of disease affecting humans. The existence of one of heavy metal pollutants cadmium (Cd) in the body of water is an environmental problem having a negative impact on the quality of water resources. Adsorption is one of the ways or methods that are often used for the treatment of wastewater. Clay and allophanic soil were used as Cd adsorbent by batch method. Ceramic filter was used to reduce Cd concentration in the ground water. This study aims to determine the effect of the composition of clay and Allophane, activation temperature and contact time on the adsorption capacity of Cd in the model solution. The optimum adsorption condition and the effectiveness of drinking water treatment in accordance with Regulation of the Minister of Health using clay/Andisol adsorbents in ensnare heavy metals Cd and bacterial pathogens. Identification and characterization of adsorbent is done by using NaF, Infrared Spectroscopy (FTIR), X-ray diffraction (XRD), specific surface area and total acidity specific. The Cd metal concentrations were analysed by atomic absorption spectroscopy. Adsorption isotherms determined by Freundlich and Langmuir equations. Modified water purification technology using ceramic filters are made with a mixture of clay and Andisol composition. The results showed samples of clay and Andisol containing minerals. The optimum condition of adsorption was achieved at 200 °C of activation temperature, 60 minutes of contact time and the 60:40 of clay:Andisol adsorbent composition. Freundlich isotherm represented Cd adsorption on the clay/Andisol adsorbent with a coefficient of determination (R~2=0.99) and constant (k=1.59), higher than Langmuir (R~2=0.89). The measurement results show the water purification technology using ceramic filters effectively reduce E. coli bacterial and Cd content in the water.
机译：水是一种对所有生物生物至关重要的自然资源。此外，水也导致疾病影响人类。水体内重金属污染物镉（CD）的存在是对水资源质量产生负面影响的环境问题。吸附是通常用于治疗废水的方法或方法之一。通过分批方法用作Cd吸附剂的粘土和锯烷烃。使用陶瓷过滤器将CD浓度降低在地水中。本研究旨在确定粘土组成，活化温度和接触时间对模型溶液中CD的吸附容量的影响。使用粘土/ andisol吸附剂在ensnare重金属Cd和细菌病原体中，根据健康部长调节饮用水处理的最佳吸附条件和饮用水处理的有效性。通过使用NAF，红外光谱（FTIR），X射线衍射（XRD），特异性表面积和总酸度来完成吸附剂的鉴定和表征。通过原子吸收光谱分析CD金属浓度。由Freundlich和Langmuir方程测定的吸附等温线。使用陶瓷过滤器的改进的水净化技术用粘土和和苏尔组合物的混合物制成。结果显示粘土和含矿物质的样品。在200℃的活化温度下，60分钟的接触时间和粘土的60:40，实现了最佳的吸附条件和粘土吸附剂组合物。 Freundlich等温线在粘土/ andisol吸附剂上代表了Cd吸附，其测定系数（R〜2 = 0.99）和恒定（k = 1.59），高于Langmuir（R〜2 = 0.89）。测量结果表明，使用陶瓷过滤器的水净化技术有效地降低了水中的大肠杆菌细菌和Cd含量。

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