Analysis of breakthrough developments and modeling of fixed bed adsorption system for As(V) removal from water by modified calcined bauxite (MCB)

Modeling the sorption of metal ions from aqueous solution by iron-based adsorbents

“…The performance of the pilot plant column was accurately predicted by scale-up from the bench-scale columns. Elsewhere [48], the service time of adsorbent beds (of calcined bauxite) under different flowrate and influent concentration of arsenates were also predicted using the BDST model and were compared with experimental observations; the observed data on service time and breakthrough curve correlated well with the theoretical values.…”

“…The result of certain investigations [48] revealed that the modified calcined bauxite was efficient in removing As(V) from aqueous environment with an adsorption capacity of 627.3 mg L −1 in the continuous flow system. A bed depth of mere 1.3 cm of a fixed 10 cm bed of adsorbent could produce effluent of As(V) concentration less than 0.01 mg L −1 from an influent of 2 mg L −1 at a flowrate of 8 mL min −1 .…”

Arsenic removal from water/wastewater using adsorbents—A critical review

“…Modified calcined bauxite was also used for As(III) and As(V) remediation from ground water [119][120][121][122] in batch and column modes. The optimum pH was ∼7.0 for both As(III) and As(V).…”

Perspectives of low cost arsenic remediation of drinking water in Pakistan and other countries

“…Modified calcined bauxite was also used for As(III) and As(V) remediation from ground water [61][62][63][64] in batch and column modes. The optimum pH was ∼7.0 for both As(III) and As(V).…”