期刊
JOURNAL OF CLEANER PRODUCTION
卷 296, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2021.126589
关键词
Wastewater treatment; Heavy metal removal; Adsorption; Conventional materials; Novel materials
资金
- Fundamental Research Grant Scheme, Malaysia [FRGS/1/2019/STG05/UNIM/02/2]
- MyPAIR-PHC-Hibiscus Grant [MyPAIR/1/2020/STG05/UNIM//1]
Wastewater treatment is still a critical issue globally, and the removal of heavy metals is of utmost importance. Adsorption is the most common technique, with activated carbon being the traditional adsorbent, but facing challenges in separation and cost. Novel materials show competitiveness with excellent attributes like large surface area and high chemical inertness, presenting a promising future for heavy metal adsorption in wastewater treatment.
Wastewater treatment remains a critical issue globally till date despite various technological advancements and breakthroughs. Heavy metal in wastewater poses a great threat to human health if untreated properly, which makes its removal of utmost importance. Among various wastewater treatment techniques, adsorption is the most common technique to remove heavy metal in wastewater due to its flexible design, operation, and cost-effectiveness. Activated carbon being the most conventional adsorbent to remove heavy metal ion in wastewater owing to its microporous structure and ease of surface functionalization. However, the activated carbon separation from wastewater solution has been difficult and its high cost have prohibited its wide usage. Recently, the emergence of different novel materials has also showed their competitiveness in heavy metal ion removal. These promising novel materials exhibit several excellent attributes, for example large surface area, great mechanical strength, and high chemical inertness. This paper presents a brief review on the use, theory and future perspectives of conventional, as well as novel materials towards heavy metal adsorption in wastewater treatment application. (c) 2021 Elsevier Ltd. All rights reserved.
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