|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|221579||464260||2016||8 صفحه PDF||سفارش دهید||دانلود رایگان|
• Ion-exchange fibres (IEFs) were used for Cu2+ ions removal from dilute synthetic solutions.
• Breakthrough time of Cu2+ ions was prolonged in IEFs of lower bed packing density.
• Breakthrough time of Cu2+ ions was also prolonged at lower feed solution flow rate.
• The elution rate of IEFs loaded with Cu2+ ions was significantly influenced by the eluent flow rate.
• The Yoon-Nelson model best describes the dynamic behaviour of Cu2+ ions loading.
Heavy metals such as copper (Cu2+) ions can have detrimental effects on the environment and human health if present at high concentrations in industrial effluent streams. Unfortunately, conventional techniques are ineffective in removing these metals from effluent streams. Therefore, it is imperative that new methods with exceptional qualities are found. This paper presents the removal of Cu2+ ions using ion exchange fibres (IEFs). The study focused on the effect of bed packing density and flow rate on loading and elution of Cu2+ ions. The optimal bed packing density, superficial velocity and residence time which corresponded to the highest removal of Cu2+ ions were 0.16 g/cm3, 5.2 cm/min and 2 min, respectively. Overall, metal removal increased with a decrease in packing density and flow rate. All the loaded Cu2+ ions were completely eluted in all the bed packing densities and flow rate studied. Nevertheless, the elution rate of Cu2+ ions was not affected by bed packing density, but it increased with an increase in acid flow rate. Amongst the fitted empirical models, the Yoon-Nelson model best described the adsorption of Cu2+ ions from synthetic wastewater onto the selected IEFs .
Removal of copper ions from dilute synthetic solution using ion exchange fibres.Figure optionsDownload as PowerPoint slide
Journal: Journal of Environmental Chemical Engineering - Volume 4, Issue 3, September 2016, Pages 3143–3150