Transport and separation of arsenate and arsenite from aqueous media by supported liquid and anion-exchange membranes

► As(V) transport at neutral pH using an SLM with Aliquat 336 is quantitative in 5 h. ► A multi-valent AEM is also effective for As(V) transport under similar conditions. ► HAsO42- is suggested to be responsible for As(V) transport in both systems. ► The presence of other anions do not affect SLM and AEM As(V) transport efficiency. ► SLM is the most appropriate in terms of As(III)/As(V) speciation.