Wood-based biochar for the removal of potentially toxic elements in water and wastewater: a critical review
By S. Shaheen, N. Niazi, Noha E. E. Hassan, I. Bibi, Hailong Wang, Daniel C W Tsang, Y. Ok, Nanthi S. Bolan, Jörg Rinklebe. International Materials Reviews, 2018
449 citations recorded by the source corpus.
Recently, biochar has received significant attention, especially for the removal of potentially toxic elements (PTEs) from water and wastewater. No review has been focused on the potential use of wood-based biochar (WB) for the removal of PTEs in water and wastewater. Here, we have critically reviewed the (i) preparation and characterisation of WB; (ii) removal efficiency of WB for PTEs in water with respect to its physicochemical characteristics, biochar/water ratio, pH, and sorption system; (iii) removal mechanisms of PTEs by WB; (iv) fate of the sorbed PTEs onto WB; and (v) recovery of the sorbed PTEs from the resultant sludge of WB. We also discussed the removal of PTEs by engineered/designer WB as compared to pristine WB. This review demonstrates the overarching scientific opportunities for a comprehensive understanding of using WB as an emerging biosorbent and a promising low-cost and effective material for the remediation of PTEs contaminated water.
Subfields: Building and Construction, Pollution, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/236872fd9a3b6f4bd4a74925b32a8c9d611b21b4
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Citations in the corpus
- New trends in biochar pyrolysis and modification strategies: feedstock, pyrolysis conditions, sustainability concerns and implications for soil amendment (2020, background): “Hardwood-derived biochars had much higher alkalinity, cation exchange capacity and micropore volume, compared with softwood-derived biochars (Jiang et al., 2017; Shaheen et al., 2019; Yargicoglu et al., 2015).”
- Biochar-based materials and their applications in removal of organic contaminants from wastewater: state-of-the-art review (2019, background): “In light of the increasing interests and advances of biochar-based materials, a number of excellent reviews and monographs have been published in the recent decade (Inyang et al. 2016; Cha et al. 2016; Shaheen et al. 2018; Ahmed et al. 2016; Tan et al. 2016; Wei et al. 2018; Wu et al. 2017a).”
- Soil amendments for immobilization of potentially toxic elements in contaminated soils: A critical review. (2019, background): “Mobilization techniques deal with phytoremediation or phytoextraction, in which released PTEs can be taken up by higher plants that are subsequently recycled or discarded (Shaheen et al., 2019e; Wang et al., 2019a).”