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Title: Pilot Studies and Cost Analysis of Hybrid Powdered Activated Carbon/Ceramic Microfiltration for Controlling Pharmaceutical Compounds and Organic Matter in Water Reclamation
Authors: Viegas, R.M. C.
Mesquita, E.
Campinas, M.
Rosa, M. J.
Keywords: Ceramic membranes;Contaminants of emerging concern;Cost analysis;Hybrid membrane processes;Microfiltration;Pharmaceutical compounds;Water reclamation
Issue Date: Dec-2019
Publisher: MDPI
Abstract: This paper addresses the enhanced removal of pharmaceutical compounds (PhCs), a family of contaminants of emerging concern, and effluent organic matter (EfOM) in water reclamation by powdered activated carbon/coagulation/ceramic microfiltration (PAC/cMF). Four chemically diverse PhCs are targeted: ibuprofen (IBP), carbamazepine (CBZ), sulfamethoxazole (SMX) and atenolol (ATN). Pilot assays (100 L/(m2 h), 10 mg Fe/L) run with PhC-spiked sand-filtered secondary effluent and 15 mg/L PAC dosed in-line or to a 15-min contactor. They showed no PAC-driven membrane fouling and +15 to +18% added removal with PAC contactor, reaching significant removals of CBZ and ATN (59%–60%), SMX (50%), colour (48%), A254 (35%) and dissolved organic carbon (DOC, 28%). Earlier long-term demo tests with the same pilot proved PAC/cMF to consistently produce highly clarified (monthly median < 0.1 NTU) and bacteria-free water, regardless of the severe variations in its intake. A detailed cost analysis points to total production costs of 0.21 €/m3 for 50,000 m3/day and 20 years membrane lifespan, mainly associated to equipment/membranes replacement, capital and reagents.
Appears in Collections:DHA/NES - Comunicações a congressos e artigos de revista

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