Large ultrafiltration system for industrial waste water re-use in Turkey

摘要

In 2006 a contract for upgrading an existing wastewater treatment system with a capacity of 50,000 m~3/d ( 50 MLD) was awarded to the company ARBIOGAZ from Istanbul. That system was already equipped with mechanical, biological and chemical treatment, but its effluent did not fulfil the quality requirements for process water of the several industrial clients. In order to meet those requirements it was decided to add a membrane filtration system consisting of uitrafiltration followed by reverse osmosis. This paper describes the installed ultrafiltration system, its pilot and design phase, the commissioning and experience from nearly 3 years of operation Membrana's Liqui-Flux~® ultrafiltration modules were selected for the ultrafiltration system. The design of the plant proposed by Membrana was linked to the results of an 8 month pilot trial to determine the optimal operation of the UF system.