TY - JOUR AV - none UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85094978346&doi=10.1016%2fj.jenvman.2020.111302&partnerID=40&md5=232823842e08137847335cb8b84b5046 VL - 278 JF - Journal of Environmental Management PB - Academic Press N2 - The water reservoirs are getting polluted due to increasing amounts of micropollutants such as pharmaceuticals, organic polymers and suspended solids. Powdered activated carbon (PAC) has been proved to be a promising solution for the purification of water without having harmful impacts on the environment. Parameters such as PAC dosing, wastewater hardness, the effect of coagulant and flocculant were evaluated in a batch scale study. These parameters were further applied on a pilot plant scale for the performance evaluation of PAC based removal of micropollutants concerning the contact time and PAC dosing with main focus on recirculation of PAC sludge. The obtained optimum dose was 10â??20 mg/L providing 84.40â??91.30 removal efficiency of suspended solid micropollutants (MPs) and this efficiency increased to 88.90â??93.00 along with coagulant which further raised by the addition of polymer and recirculation process at batch scale. On pilot plant scale, the concentration in contact reactor and PAC removal effectiveness of dissolved air flotation, lamella separator and sedimentation tank were compared. Constant optimisation resulted in a concentration ranging from 2.70 to 3.40 g/L at dosing of PAC 10 mg/L, coagulant 2.00 mg/L and polymer 0.50 mg/L. PAC doses of 10â??20 mg/L with 15â??30 min contact time proved best for above 70â??80 elimination. The recirculation system has also proved an efficient technique because the PAC's adsorption capacity was practically completely used. Small PAC dosages yielded high micropollutants elimination. © 2020 Elsevier Ltd N1 - cited By 76 KW - activated carbon; coagulating agent; polymer; charcoal KW - activated carbon; adsorption; coagulation; concentration (composition); optimization; pollutant removal; polymer; purification; sedimentation; suspended load; wastewater treatment KW - activated sludge; adsorption; Article; comparative study; contact time; controlled study; flocculation; flotation; laboratory test; municipal wastewater; pollutant; sedimentation; suspended particulate matter; waste component removal; waste water management; waste water treatment plant; water hardness; water management; water supply; sewage; waste water; water management; water pollutant KW - Adsorption; Charcoal; Waste Disposal KW - Fluid; Waste Water; Water Pollutants KW - Chemical; Water Purification A1 - Sher, F. A1 - Hanif, K. A1 - Rafey, A. A1 - Khalid, U. A1 - Zafar, A. A1 - Ameen, M. A1 - Lima, E.C. Y1 - 2021/// TI - Removal of micropollutants from municipal wastewater using different types of activated carbons SN - 03014797 ID - scholars15272 ER -