参数影响,特征和吸附机制研究性化Garcinia kola的体颗粒对于Cr (VI) 封存
1Separation Processes Research Laboratory, Chemical and Petroleum Engineering Department, Afe Babalola University, Ado-ekiti, Ekiti State, Nigeria.
Environmental health insights
|January 22, 2024
概括
经过修改的Garcinia kola外颗粒有效地从废水中去除了96%以上的有毒. 这种可持续吸附剂为工业废水处理提供了一个有前途的解决方案,保护水生生物和人类健康.
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:
- 工业废水经常含有有毒的 (VI),对水生生态系统和人类健康构成重大风险.
- 世界卫生组织 (WHO) 现有的规定不足以防止污染废水的不合理排放.
- 农业废物,如Garcinia kola,为开发新型环境修复材料提供了机会.
研究的目的:
- 为了研究改造的Garcinia kola船体颗粒 (cMGK-HP) 作为 (VI) 封存的吸附剂的有效性.
- 使用各种分析技术来表征原始 (rGK-HP) 和改性 (cMGK-HP) 吸附剂.
- 优化和评估Cr (VI) 去除的吸附过程参数.
主要方法:
- 使用NaOH来化Garcinia kola的体颗粒,以产生改性吸附剂 (cMGK-HP).
- 吸附剂的表征包括布鲁纳尔-埃梅特-泰勒 (BET),扫描电子显微镜 (SEM),X射线衍光度量测 (XRD),里埃转换红外线 (FTIR),热重力测量分析 (TGA),能量分散光谱 (EDS) 和零电荷点 (pHpzc).
- 进行了批量吸附实验,以研究pH值,吸附剂剂量,接触时间,温度和初始Cr (VI) 度的影响.
主要成果:
- 经过修改的Garcinia kola船体颗粒 (cMGK-HP) 实现了高去除效率为96.25%的CrVI.
- 吸附能力随着吸附剂剂量,接触时间和温度的增加而增加,但随着pH值和初始Cr (VI) 度的增加而下降.
- SEM,BET,FTIR,XRD和EDS分析证实了Cr(VI) 封存后吸附性质的变化,表明有效的吸附.
- 同热和动力学研究表明单层吸附适合伪二阶模型,cMGK-HP显示出出色的可重复使用性和热稳定性.
结论:
- 修改的Garcinia kola外颗粒 (cMGK-HP) 是一种高效且可重复使用的吸附剂,用于从水溶液中去除有毒的.
- 本研究提出了一种可持续的废水处理方法,利用农业废物进行环境修复.
- cMGK-HP显示出作为工业废水处理的环保替代品的巨大潜力.
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