A review on agro-industrial waste (AIW) derived adsorbents for water and wastewater treatment. (1st December 2018)

• Record Type: Journal Article
• Authors: Mo, Jiahao; Yang, Qi; Zhang, Na; Zhang, Wenxiang; Zheng, Yi; Zhang, Zhien
• Is Part Of: Journal of environmental management. Volume 227(2018)
• Page Start: 395
• Page End: 405
• Publication Date: 2018-12-01
• Subjects: Agricultural waste -- Industrial waste -- Adsorbents -- Natural materials -- Adsorption capacity; Environmental policy -- Periodicals; Environmental management -- Periodicals; Environment -- Periodicals; Ecology -- Periodicals; 363.705
• DOI: 10.1016/j.jenvman.2018.08.069
• Languages: English
• ISSNs: 0301-4797

Abstract

Abstract: There is a large amount of studies surrounding the usage of agro-industrial waste (AIW) for the adsorptions of organic pollutants (dyes) and inorganic pollutants (heavy metals) in water/wastewater. This method is normally treated as an alternative approach to the conventional water/wastewater treatment. However, there are some increasing interests for investigators to identify novel adsorption materials for pollutants removal. It is particularly noteworthy that most AIW wastes are not currently used at the original state, but modified in a variety of ways to reinforce the porosity and adsorption surface area of the material. Nanostructuring, activation, carbonization, and grafting are some common modification technologies of agricultural waste adsorbents. Besides, the characteristic, preparation and application of adsorbents from various industrial wastes, including natural materials and biosorbents, were summarized. Additionally, the challenges and perspectives for future researches of waste-derived adsorbents were studied. This review provides an important insight on using AIWs as precursor materials for preparing adsorbents in water/wastewater treatment. Highlights: Waste materials from agro-industry were used as adsorbents to remove pollutants. Various modification methods for AIW were introduced. The characteristic, preparation and application of AIW were summarized. The challenges and perspectives of AIW for future researches were studied.