relation: https://khub.utp.edu.my/scholars/15272/
title: Removal of micropollutants from municipal wastewater using different types of activated carbons
creator: Sher, F.
creator: Hanif, K.
creator: Rafey, A.
creator: Khalid, U.
creator: Zafar, A.
creator: Ameen, M.
creator: Lima, E.C.
description: 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 10�20 mg/L providing 84.40�91.30 removal efficiency of suspended solid micropollutants (MPs) and this efficiency increased to 88.90�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 10�20 mg/L with 15�30 min contact time proved best for above 70�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
publisher: Academic Press
date: 2021
type: Article
type: PeerReviewed
identifier:   Sher, F. and Hanif, K. and Rafey, A. and Khalid, U. and Zafar, A. and Ameen, M. and Lima, E.C.  (2021) Removal of micropollutants from municipal wastewater using different types of activated carbons.  Journal of Environmental Management, 278.   ISSN 03014797     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85094978346&doi=10.1016%2fj.jenvman.2020.111302&partnerID=40&md5=232823842e08137847335cb8b84b5046
relation: 10.1016/j.jenvman.2020.111302
identifier: 10.1016/j.jenvman.2020.111302