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Heavy metal removal applications using adsorptive membranes
Thi Sinh Vo1, Muhammad Mohsin Hossain1, Hyung Mo Jeong1
1School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
Nano Convergence
|November 16, 2020
Summary
Adsorptive membranes (AMs) effectively remove heavy metals from wastewater. This review compares various AMs, including polymeric membranes (PMs) and nano-enhanced membranes (NEMs), detailing their mechanisms and recycling methods.
Area of Science:
- Environmental Science
- Materials Science
- Chemical Engineering
Background:
- Heavy metal contamination in wastewater poses a significant environmental threat.
- Adsorption is a key technology for water purification and wastewater treatment.
- Adsorptive membranes (AMs) offer high efficiency in removing heavy metal ions due to their unique structures.
Purpose of the Study:
- To review and compare various adsorptive membranes for heavy metal removal.
- To elucidate the mechanisms, advantages, and disadvantages of different AM types.
- To summarize adsorption theories, recycling methods, and structural influences on AM performance.
Main Methods:
- Review of current literature on adsorptive membranes for heavy metal removal.
- Comparison of polymeric membranes (PMs), polymer-ceramic membranes (PCMs), electrospinning nanofiber membranes (ENMs), and nano-enhanced membranes (NEMs).
- Description of adsorption isotherms, kinetics, and desorption processes.
Main Results:
- Various AMs, including PMs, PCMs, ENMs, and NEMs, show high selectivity and capacity for heavy metal ion adsorption.
- Detailed comparison of the advantages and disadvantages of each membrane type.
- Summary of adsorption theories and recycling methods for heavy metal ions.
Conclusions:
- Adsorptive membranes are highly effective for heavy metal removal from wastewater.
- Understanding the influence of morphological and chemical structures is crucial for optimizing AM performance.
- This review provides valuable insights into AM applications and mechanisms for heavy metal remediation.
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