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首页> 外文会议>International Symposium on High-Temperature Metallurgical Processing >Removal of Cd(II) Ion from Aqueous Solution by Adsorption on Wasted Low Grade Phosphorus-Containing Iron Ore
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Removal of Cd(II) Ion from Aqueous Solution by Adsorption on Wasted Low Grade Phosphorus-Containing Iron Ore

机译：通过吸附在余量的含低磷铁矿矿石上吸附来自水溶液的CD（II）离子

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Low grade phosphorus-containing iron ore (LGPIO), a raw and wasted industrial solid material was used as an adsorbent to remove Cd(II) ion from wastewater. The effects of initial pH value, adsorptive time, initial Cd(II) ion concentration, adsorptive temperature and LGPIO dosage on the Cd(II) ion removal efficiency were studied. The results show that the Cd(II) ion removal efficiencies exceed 99.8% and Cd(II) ion concentrations are less than 0.10 mg/L under the pH value 6, temperature 20°C, adsorptive time 90 min, initial Cd(II) ion concentration 50 mg/L, particle size <0.15 mm, adsorbent dosage 50 g/L and stirring speed 290 r/min. After Cd(II) ion removal reaction, the Cd(II) ion concentrations completely complies with the requirement of national discharge standard of water pollutants for cadmium and zinc industry (GB 20466-2010) (TCd(II) = 0.1 mg/L) in China. Therefore, it can be concluded that LGPIO is a new low-cost adsorbent which is suitable for the adsorption of Cd(II) ion from wastewater.
机译：使用低级磷铁矿石（LGPIO），原料和浪费的工业固体材料用作吸附剂以除去废水中的CD（II）离子。研究了初始pH值，吸附时间，初始CD（II）离子浓度，吸附温度和LGPIO剂量对CD（II）离子去除效率的影响。结果表明，CD（II）离子去除效率超过99.8％，CD（II）离子浓度小于pH值6，温度20℃，吸附时间90分钟，初始CD（II），CD（II）离子浓度小于0.10mg / L.离子浓度50mg / L，粒度<0.15mm，吸附剂剂量50g / L和搅拌速度290 r / min。在CD（II）离子除去反应后，CD（II）离子浓度完全符合镉和锌工业水污染物的国家排放标准（TCD（II）= 0.1mg / L）在中国。因此，可以得出结论，LGPIO是一种新的低成本吸附剂，适用于废水中CD（II）离子的吸附。

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