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相关概念视频

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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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工程可持续吸附过程:批量与固定床系统用于污染物去除污染物.

Khaled Al-Zawahreh1, Ahmad B Albadarin2, Chirangano Mangwandi3

  • 1Department of Earth Sciences and Environment, Talal Faculty for Natural Resources and Environment, The Hashemite University, Prince El-Hassan Bin, P.O. Box 330127, Zarqa, 13133, Jordan.

Environmental science and pollution research international
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概括

这项研究引入了一个框架,用于选择最佳的吸附过程 (批量与固定床) 来去除污染物,最大限度地减少吸附剂的使用. 批量处理往往更有效,特别是当合成吸附剂昂贵时.

关键词:
进行比较性吸附研究.效率因子是有效性的因素.兰姆维尔模型的模型合成吸附剂 合成吸附剂污水处理 污水处理 污水处理

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科学领域:

  • 环境化学环境化学
  • 化学工程是化学工程的重要组成部分.
  • 材料科学 材料科学 材料科学

背景情况:

  • 吸附对于污染物去除至关重要,但在批处理和固定床处理之间进行选择是复杂的.
  • 优化吸附剂的消耗,同时确保有效的去除是水处理的一个关键挑战.

研究的目的:

  • 开发一个实用的框架,在批量和固定床吸附过程之间进行选择.
  • 引入用于评估和比较不同吸附系统效率的指标.
  • 为了尽量减少吸附剂在污染物清除应用中的使用.

主要方法:

  • 引入了一种实验性疗效因子 (rexp),比较批量 (qb) 和固定床 (qfb) 吸附能力.
  • 通过Langmuir模型进行验证,推导出理论疗效系数 (rtheo).
  • 使用最终临界度 (Cfc) 对5.0 mg/L值进行评估.
  • 用31种不同的吸附剂的数据验证了模型.

主要成果:

  • 实验和理论疗效因子显示出密切一致,验证了评估方法.
  • 测试的吸附剂,包括活性炭和生物吸附剂,具有很高的染料吸收能力.
  • 聚合物树脂在批量 (1076.0 mg/g) 和固定床 (917.0 mg/g) 两种模式中都表现出优异的性能.
  • 批处理过程经常显示较低的Cfc值,表明更有效的污染物清除和吸附剂利用.

结论:

  • 拟议的框架有效地帮助选择最合适的吸附工艺 (批量或固定床).
  • 批量处理在污染物清除效率和吸附剂最小化方面具有优势,特别是对于昂贵的合成吸附剂.
  • 这项研究支持明智的决策,以优化基于吸附的环境修复策略.