Preparation and modification of low-fouling ultrafiltration membranes for cheese whey treatment by membrane bioreactor
Nasim Bazrafshan, Mostafa Dadashi Firouzjaei, Mark Ellıott, Amitis Moradkhani, Ahmad Rahimpour
Abstract
This case studied the treatment of cheese whey wastewater (CWW) from the Kalleh® dairy industry using a membrane bioreactor (MBR). The coagulation process and activated sludge sections eliminated 26% and 75% of organic matter from CWW with chemical oxygen demand (COD) of 10,000 mg/l, respectively. In the MBR, metal-organic framework (MOF)-modified PSf membranes enhanced the whole system's performance. The flux of water and CWW increased from 157 and 28 (L/m2.h) to 350 and 60 (L/m2.h), respectively, by only 2 wt% MOF concentration. The reduction of COD in the overall system was around 98.8%.
Topics & Concepts
Ultrafiltration (renal)Membrane bioreactorChemical oxygen demandMembraneChemistryBioreactorFoulingWastewaterMembrane foulingChromatographyActivated sludgeOrganic matterPulp and paper industryEnvironmental engineeringEnvironmental scienceBiochemistryOrganic chemistryEngineeringMembrane Separation TechnologiesMembrane-based Ion Separation TechniquesElectrohydrodynamics and Fluid Dynamics