MBR Based treatment of tractor manufacturing wastewater
Abstract
Kubota corporation has recently built new tractor manufacturing plant in Jefferson Georgia. CWT and Kubota agreed to design, pilot test and build a system for full water reuse of up to 75% of produced wastewater. Wastewater is very complex and contains complexed heavy metals, fine suspended solids, emulsified oils, grease, strong degreasing agents, nutrients (nitrogen and phosphorous) and small dissolved organic molecules and inorganic ions.
Upon treatability studies a full scale treatment system including effluent collection tanks, screens, flocculation-flotation system, MBR and RO was installed. The treatability study and full scale system will be described in this manuscript.
Keywords: tractor manufacturing wastewater, painting, water reuse, GEM, MBR, RO
Introduction
Goals and Objectives
Design and pilot test system components for water collection, primary, secondary and tertiary treatment. Build a wastewater treatment plant as the new plant is constructed. Our engineering teams decided to test free oil separation, screening, heavy metal precipitation, suspended solids removal with flocculation - flotation, aerobic MBR, granular active carbon filtration and low pressure reverse osmosis (RO) to reuse up to 75% of produced wastewater.
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