The application of agricultural wastes for heavy metals adsorption: A meta-analysis of recent studies. (February 2022)

• Record Type: Journal Article
• Authors: Imran-Shaukat, Muhammad; Wahi, Rafeah; Ngaini, Zainab
• Is Part Of: Bioresource technology reports. Volume 17(2022)
• Publication Date: 2022-02
• Subjects: Adsorbent -- Adsorption behaviour -- Agricultural waste -- Biosorption -- Wastewater treatment; Biomass energy -- Periodicals; Biotransformation (Metabolism) -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Waste products as fuel -- Periodicals; Waste products as fuel; Organic wastes; Factory and trade waste; Biotransformation (Metabolism); Biomass energy; Agricultural wastes; Periodicals; Electronic journals; 662.88
• DOI: 10.1016/j.biteb.2021.100902
• Languages: English
• ISSNs: 2589-014X

Abstract

Abstract: Numerous studies have been carried out to investigate the suitability of various agricultural wastes as biosorbent for heavy metals removal. Previous published reviews on heavy metal removal by agricultural waste-based biosorbent were limited to narrative and systematic reviews, with no statistical analysis to compare outcomes across different biosorbents sources. In this work, meta-analysis technique was applied to identify gaps in contemporary biosorbents research. A meta-analysis was undertaken using several packages of R programme on publications over the last five years to evaluate the capability of eleven different types/components agricultural wastes for the adsorption of eight heavy metal. Based on the findings, agricultural wastes have the potential to be employed for heavy metal adsorption from aqueous media in general. However, the disparities in the findings suggest that when utilising different types of raw biomass as adsorbents, modifying the biomasses into carbon-enriched forms would be a preferable option. Graphical abstract: Unlabelled Image Highlights: Diverse review articles on biosorbents but not a single statistical analysis yet Used "R" programme for meta-analysis of 75 selected articles of last 5 years Various agricultural wastes were compared for their adsorption capabilities. Agricultural wastes exhibited varying levels of heavy metals removal efficiency. Modified agricultural wastes might be better sorbents than using them directly.