Review of phosphate removal from water by carbonaceous sorbents

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:287

Review

Almanassra, Ismail W.¹  Kochkodan, Viktor²  Mckay, Gordon¹  Atieh, Muataz Ali^3,4  Al-Ansari, Tareq^1,5 

[1] Hamad Bin Khalifa Univ, Qatar Fdn, Coll Sci & Engn, Div Sustainable Dev, Doha, Qatar

[2] Hamad Bin Khalifa Univ, Qatar Fdn, Qatar Environm & Energy Res Inst, POB 5825, Doha, Qatar

[3] Univ Sharjah, Coll Engn, POB 27272, Sharjah, U Arab Emirates

[4] Univ Sharjah, Res Inst Sci & Engn, Desalinat Res Grp, POB 27272, Sharjah, U Arab Emirates

[5] Hamad Bin Khalifa Univ, Qatar Fdn, Div Engn Management & Decis Sci, Coll Sci & Engn, Doha, Qatar

关键词: Phosphate;    Adsorption;    Activated carbon;    Graphene;    CNTs;    Water treatment;   

DOI  :  10.1016/j.jenvman.2021.112245

来源: Elsevier

【 摘 要 】

In the last decades, phosphate is considered the main cause of eutrophication and has received substantial attention from the scientific community. Phosphate is a major pollutant that deteriorates water quality, which has been increasing in water resources, primarily due to the increasing global population and corresponding activities. Adsorption technology is amongst the different technologies used to decrease the phosphate levels in water, and has been found to be highly effective even at low phosphate concentrations. Carbonaceous materials and their composites have been widely used for phosphate removal due to their exceptional surface properties and high phosphate sorption capacity. Considering the importance of the topic, this study reviews the reported literature in the field of adsorptive removal of phosphate over various carbon-based adsorbents such as activated carbon, charcoal, graphene, graphene oxide, graphite and carbon nanotubes. Moreover, insights into the adsorption behaviour, experimental parameters, mechanisms, thermodynamics, effect of coexisting ions and the possible desorption processes of phosphate onto modified and unmodified carbonaceous adsorbents are also considered. Finally, research challenges and gaps have been highlighted.

【 授权许可】

Free