Optimization of operating conditions for a hollow fiber ultrafiltartion membrane module using Taguchi method

Using the Taguchi method, this study analyzes the optimum operating conditions of UF process for oily wastewater treatment. The controllable factors used in this study consisted of the following: (1) Back Wash time; (2) Transmembrane pressure (TMP); (3) Flow rate; and (4) temperature. According to the optimum operating conditions, the confirmation experiment was carried out, and permeate flux recovered was up to 89.05%. The percentage contribution of eachcontrollable factor was also determined. Most interestingly, tarnsmembrane pressure is the most influential factor for permeate flux, and its value is up to 89.80%. The optimum operating conditions of UF were found as follows. (1) Backwash time of 5 s; (2) TMP of 2 bar; (3) Flow rate of 12 Lmin-1 and (4) temperature of 30 °C.

کلیدواژه ها:

Taguchi method ، hollow fiber ultrafiltration ، oily wastewater treatment