Among the commonly reported sorbents, namely, activated alumina [21], carbon-based materials [22], biosorbents [23] and so on,iron-based materials including zero valent iron (ZVI) [24,25], iron oxides [26–28], and iron-based bimetal oxide [29,30] are considered to be the most promising and effective sorbents due to high surface reactivity, environmental friendliness, and abundance on earth.several adsorbents have been exploited for the p-AsA removal including metal oxides (FeOOH, Al2O3 and FeeMn oxides), metal-organic framework (ML-101) and zeolitic imidazolate framework-8. All of them demonstrated high adsorption performances towards p-AsA, but it usually takes several hours to reach the adsorption equilibrium and the removal efficiency by metal-based adsorbents for p-AsA is generally lower than for inorganic As(V).Adsorbents such as iron and aluminum have shown great adsorption ability for inorganic arsenic, but the adsorption ability of organoarsenic is weaker and the time to achieve the desired adsorption equilibrium is normally more than 5 h.