Phosphate removal using thermally regenerated Al adsorbent from drinking water treatment sludge

Application of modified water treatment residuals in water and wastewater treatment: A review

“…This enhances its adsorption potential for various organic and inorganic pollutants by increasing adsorption sites related to Al and Fe [ 52 ]. Furthermore, various studies reported the effect of pyrolysis in enhancing the adsorption potential of powdered WTRs [ [52] , [53] , [54] , [55] ].…”

“… Results in surface-bound hydroxyl removal High energy cost Melting and crystallization behavior of Al/Fe particles, as well as the reduction of active adsorption sites and SSA, reduces adsorption in sintering. Releases accumulated gases generated from the decomposition of organic/inorganic matter [ 53 , 54 , 68 , 73 , 129 , 148 ] 2. Granulation Increases the size of adsorbent, leading to convenient transportation, storage, and utilization.…”

“…pH pzc is one of the important parameters affecting adsorption process in aqueous phase [ 53 , 82 ]. It is the pH at which net surface charge on the surface become neutral and the numbers of positive and negative charges of the adsorbent are equal [ 6 ].…”

“…Truong and Kim [ 53 ] compared raw and thermally treated WTRs. They reported 2 to 3 times increase in phosphate adsorption capacity (35.02 mg/g) compared to that of raw WTRs (16.91 mg/g).…”

Multivariate-Parameters Effect of Dewatered Aluminium-Based Sludge in Catalytic Oxidation into Wastewater Treatment with A Special Strategy for Solar Energy Application

“…AS was initially used to remove colors from dyeing effluent [8]. Furthermore, a substantial amount of study has been conducted on the use of AS to remove phosphate in water [9]. Also, AS was effectively employed for the adsorption of various inorganic compounds in water, such as fluoride ions [10,11] and hexavalent chromium [12], and organic compounds like removal of humic acid in water [13].…”