使用生物质衍生的高表面积活性碳增强吸的化合物:异热,动力学和热力学
Praveengouda Patil1, Gautham Jeppu1, Manjunath Singanodi Vallabha2
1Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
概括
来自Cassia fistula的新型吸附剂有效地从水中去除和2,4-二二. 这种环保材料提供了高效率和处理污染物的能力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理技术水处理技术
背景情况:
- 工业和农业废水增加了有毒化合物的环境污染.
- 类污染物对水系统构成重大挑战,原因是毒性和低生物降解性.
- 需要具有成本效益和可持续的吸附剂来去除污染物.
研究的目的:
- 开发一种新的,低成本的吸附剂从卡西亚虫贝去除和2,4-二二 (2,4-DCP).
- 调查影响吸附过程的操作参数.
- 描述吸附剂并评估其吸附性能.
主要方法:
- 卡西亚螺贝被激活以创建一个新型吸附剂 (CFPAC).
- 进行批量实验以优化剂量,pH值,温度,度和速度.
- 研究了和2,4-DCP去除的吸附异温,动力学和热力学.
- 活性炭的特点是表面积,孔径和零电荷点 (pHpzc).
主要成果:
- 最佳条件:pH值为2,温度为20°C,的剂量为1.6g/L,2,4-DCP的剂量为0.6g/L.
- CFPAC 具有较高的特定表面积 (1146 m2/g) 和高孔积 (0.8628 cc/g).
- 醇的最大吸附能力为183.79 mg/g,而2,4-DCP的最大吸附能力为374.4 mg/g.
- 吸附之后是Redlich Peterson () 和Langmuir (2,4-DCP) 异热和伪二次动力学.
- 吸附主要是物理,外热和自发的.
结论:
- 来自卡西亚螺的活性炭是一种非常有效和有前途的化合物的吸附剂.
- 开发的吸附剂为废水中的和2,4-DCP处理提供了可持续和高效的解决方案.
- 吸附过程是可行的,自发的,并由物理相互作用主导.
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