Abstract Adsorption of perfluoroalkyl acids (PFAAs) by granular activated carbon (GAC) was evaluated in bench‐, pilot‐, and full‐scale studies to determine effects PFAA characteristics background organic matter on use rates. Rapid small‐scale column tests (RSSCTs) were conducted according the proportional diffusivity (PD) design assess their suitability predict full‐ or pilot‐scale GAC performa...

Granular activated carbon (GAC) adsorption has found wide application as a treatment process for the removal of natural organic matter, small compounds (e.g. pesticides), inorganic heavy metals), taste and odour in water over many years. During GAC operation, contaminants are adsorbed becomes progressively saturated time, requiring periodic regeneration media to restore its capacity. Chemical b...

The ample increase in water scarcity and depletion of natural resources due to their overconsumption the contamination sources becomes more challenging day by day. This situation has pushed scientific community cope with it providing alternative solutions. Therefore, is indeed important conduct a sustainable study on recycling wastewater for particular purpose. Taking this into account, an effo...

Granular activated carbon (GAC), in the presence of dilute aqueous hypochlorite solutions typical of those used in water treatment, was converted to a reagent capable of carrying out free-radical coupling reactions and other oxidations of dilute aqueous solutions of phenols. The products included biphenyls with chlorine and hydroxyl substitution (hydroxylated polychlorinated biphenyls). For exa...

Present study is carried out for the removal of As(lII) from water using commonly available adsorbents such as sand, from Yamuna river (Delhi ), as well as from Ganga river (Kolkata), activated carbon, Hametite ore and sand -iron scrap mixture. All these adsorbents are used as received but sand and activated carbon which do not show much adsorption for As(lII) are modified by treating with diff...

Many pharmaceuticals are found in municipal wastewater effluents due to their persistence in the human body as well as in conventional wastewater treatment processes. This discharge to the environment can lead to adverse effects in aquatic species, such as feminization of male fish. During the past decade, these findings have spawned investigations and research into suitable treatment technolog...