Removal of Arsenic, Fluoride, and Lead from Wastewater Using Novel Polyinorganic Coagulants

Fathy M. M. Ahmed; Khaled A. Falous; Moktar M.  Aburzeza

doi:10.59743/jmset.v1i1.135

Authors

Fathy M. M. Ahmed Faculty of Marine Resources, Alasmarya Islamic University, Libya.
Khaled A. Falous Faculty of Science, Alasmarya Islamic University, Libya.
Moktar M. Aburzeza Faculty of Science, Alasmarya Islamic University, Libya.

DOI:

https://doi.org/10.59743/jmset.v1i1.135

Keywords:

Rice husk ash, Active silica, Sodium silicate, Polyinorganic coagulants, Pollutants removal

Abstract

The present study highlights to the removal of some dangerous pollutants such as lead, arsenic, and fluoride from wastewater. Treatment using a novel polyinorganic coagulants, the eight novel polyinorganic coagulants were prepared, and characterized namely, poly aluminum chloride (PACl) polyaluminum chloride silicate (PAClSi), polyaluminum hydroxy sulphate (PAHS), polyaluminum hydroxy sulphate silicate (PAHSSi), polyferric chloride (PFeCl), polyferric chloridesilicate (PFeClSi), polyaluminum ferric chloride (PAlFeCl), and polyaluminum ferric chloride silicate (PAlFeClSi). The application was carried out for the removal of pollutants from wastewater using these novel polyinorganic coagulants. It was found that the maximum percentages of removal of Pb²⁺, AS³⁺, and F^- ions from wastewater reached 99.98, 97, and 99%, using novel polyinorganic coagulants PAHSSi, PAlFeClSi, and PAlFeClSi respectively. Therefore, polyinorganic coagulant impregnated with silica was considered as a good coagulant for wastewater treatment due to its low cost and good efficiency in this application, as well as it will solve the problem of water shortage and to sustains a non-conventional water resource.

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