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首页> 外文期刊>International journal of green energy >Experimental Study on The Adsorption of Malachite Green in Simulated and Real Effluent by Bio-Based Adsorbents
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Experimental Study on The Adsorption of Malachite Green in Simulated and Real Effluent by Bio-Based Adsorbents

机译：生物基吸附剂在模拟废水和实际废水中吸附孔雀石绿的实验研究

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The purpose of this study is to investigate the potential use of biomass-based adsorbents, such as sugarcane bagasse, sawdust, and neem leaf, for the removal of malachite green from simulated and real effluent. The adsorbents prepared from bagasse are pretreated with formaldehyde, sulfuric acid, and phosphoric acid to improve the surface properties like porosity and surface area and its reflection on adsorption capacity. Neem leaf was used as an untreated adsorbent to compare the performance with that of treated adsorbents. The adsorption capacity of treated bagasse, sawdust, and untreated neem leaf adsorbent were compared with that of commercial powdered-activated carbon. The effect of initial dye concentration, adsorbent dosage and adsorbent surface modification on dye removal was examined for different contact time. It was observed that the adsorption efficiency of phosphoric acid-treated bagasse and neem leaf powder gives higher percentage of dye removal (97%) as compared to sulfuric acid- and formaldehyde-treated adsorbents (89% and 86%). Experiments performed on a real effluent using PSB as the adsorbent indicated a maximum color removal of 79% for an adsorbent dosage of 1 g/100 mL. Also equilibrium studies of the adsorption process were carried out and the adsorption data were fitted to Langmuir and Freundlich isotherm models.
机译：这项研究的目的是研究基于生物质的吸附剂（例如甘蔗渣，锯末和印em叶）从模拟废水和实际废水中去除孔雀石绿的潜在用途。由蔗渣制得的吸附剂经过甲醛，硫酸和磷酸的预处理，以改善诸如孔隙率和表面积之类的表面性能，并改善其对吸附容量的反映。印em叶用作未处理的吸附剂以比较其性能与经处理的吸附剂。将处理过的蔗渣，锯末和未处理印ne叶吸附剂的吸附能力与市售粉状活性炭进行了比较。在不同的接触时间下，检查了初始染料浓度，吸附剂量和吸附剂表面改性对染料去除的影响。观察到，与硫酸和甲醛处理的吸附剂（89％和86％）相比，磷酸处理的甘蔗渣和印leaf叶粉的吸附效率可实现更高的染料去除率（97％）。使用PSB作为吸附剂对实际流出物进行的实验表明，对于1 g / 100 mL的吸附剂，最大脱色率为79％。还进行了吸附过程的平衡研究，并将吸附数据拟合到Langmuir和Freundlich等温模型。

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