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首页> 外文会议>International Conference on Chemistry and Material Science >Use of Eichhornia crassipes modified Nano-chitosan as a biosorbent for lead (II), cadmium (II), and copper (II) ion removal from aqueous solutions
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Use of Eichhornia crassipes modified Nano-chitosan as a biosorbent for lead (II), cadmium (II), and copper (II) ion removal from aqueous solutions

机译：使用Eichhornia Crassipes改性纳米壳聚糖作为铅（II），镉（II）和铜（II）离子除去水溶液的生物吸附剂

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Industrial waste in a major city poses a considerable threat to water environment from the accumulation of heavy metals. Additionally, uncontrolled growth of Eichhornia crassipes will also damage the water environment by lowering the levels of dissolved oxygen. Therefore, we conduct research to not only treat industrial waste in water but also reduce the population of E. crassipes in water. We made this biosorbent by mixing E. crassipes with nano-chitosan in various compositions. Its absorptivity was tested against single metal solutions of lead (II), cadmium (II), and copper (II) to get the best biosorbent composition. The chosen biosorbent then went through an adsorptivity test against a mixture of three solutions, with each test was carried at various pH. The best biosorbent composition is the mixture of 1 g of E. crassipes with 30 mL of nano-chitosan 0.01%, while adsorption tests in single or three metals solution show that the biosorbent performs better in neutral pH.
机译：主要城市的工业废物对水环境产生了相当大的威胁，从重金属的积累。此外，由于降低溶解氧水平，因此，Eichhornia奇迹的不受控制的增长也将损害水环境。因此，我们对水中的工业废物进行研究进行研究，而且还减少了水中的沉默裂缝。我们通过将E.用纳米壳聚糖混合在各种组合物中用纳米壳聚糖制成这种生物吸附剂。对铅（II），镉（II）和铜（II）的单金属溶液进行测试，以获得最佳的生物吸附组合物。然后选择的生物吸附剂通过对三种溶液的混合物进行吸附试验，每次测试都在各种pH下进行。最佳的生物吸附组合物是1g大的E.沉默的混合物，其中30ml纳米壳聚糖0.01％，而单一或三种金属溶液中的吸附试验表明，生物吸收性在中性pH下表现更好。

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