Progress in Preparation and Application of Modified Biochar for Improving Heavy Metal Ion Removal From Wastewater | Zendy

Patrick M. Godwin | Zendy; Yuanfeng Pan | Zendy; Huining Xiao | Zendy; Muhammad T. Afzal | Zendy

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Progress in Preparation and Application of Modified Biochar for Improving Heavy Metal Ion Removal From Wastewater

Author(s) -

Patrick M. Godwin,

Yuanfeng Pan,

Huining Xiao,

Muhammad T. Afzal

Publication year - 2019

Publication title -

journal of bioresources and bioproducts

Language(s) - English

Resource type - Journals

ISSN - 2369-9698

DOI - 10.21967/jbb.v4i1.180

Subject(s) - biochar , sorption , wastewater , adsorption , sewage treatment , surface modification , nanomaterials , waste management , alkali metal , contamination , pulp and paper industry , chemistry , environmental science , materials science , chemical engineering , nanotechnology , environmental engineering , pyrolysis , organic chemistry , engineering , ecology , biology

Modified biochar (BC) is reviewed in its preparation, functionality, application in wastewater treatment and regeneration. The nature of precursor materials, preparatory conditions and modification methods are key factors influencing BC properties. Steam activation is unsuitable for improving BC surface functionality compared with chemical modifications. Alkali-treated BC possesses the highest surface functionality. Both alkali modified BC and nanomaterial impregnated BC composites are highly favorable for enhancing the adsorption of different contaminants from wastewater. Acidic treatment provides more oxygenated functional groups on BC surfaces. Future research should focus on industry-scale applications and competitive sorption for contaminant removal due to scarcity of data.

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