Application of ANOVA on the Key Parameters Screening of Electrodialysis Reversal used for High Salinity Wastewater from Petrochemical Industry

• Main Authors: Jyun-Wei Chen, 陳俊瑋
• Other Authors: Teng-Jhou Wan
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/30053265104684023768

碩士 === 雲林科技大學 === 環境與安全工程系碩士班 === 98 === This research is middle the simulation sea water of some power plant discharges fume the desulphurization waste water that confirmed for a long time after its water quality material variation and stability compounds the simulation premenstrual processing elimination major part pollutant voluntarily. For example: suspended solid, calcium, magnesium ion. Utilizes the small-scale Electrodialysis Reversal mold factory to carry on the research of the goal pollutant sulfate and chlorine salt extremelythe processing. This research attempt change different voltage, temperature, current capacity, and continuously with the opening circular telegram discussion and desalinization of rate the comparison regarding this high salinity waste water, and coordinate Taguchi Method to design pursue the optimum design and the operating parameter condition. The findings showed that Electrodialysis Reversal operating condition advance deletion not necessity important matter of for the research. In the voltage is excessively low, current capacity too high or low under the situation, all will affect desalinization of efficiency the electricity dialysis; and although the highest desalinization efficiency has 77%, but in 75 minutes time will be unable to achieve leads the kilowatt hour request 500μS/cm below the goal, the water power resident time is excessively long will also create the energy the consumption, therefore this research will delete this kind of condition to save the resources in advance. The Electrodialysis Reversal processes the high salinity waste water, after the field mouth method F examination the operating temperature is situated between 15 - 20℃ has the high significance (5% risks rate), in order for current capacity, electrode opening time, voltage and electrode closing hour. Finally deduces the best operating condition by Taguchi Method for voltage 1V, current capacity 3L/min, the temperature 15℃, the electrode to open 30 minutes, the electrode to close 2 minutes to be possible to result in the best processing effect. After repeated trial three confirmations the result showed that leads the kilowatt hour by 4860μS/cm to process finally equally 510 μS/cm, the elimination rate reaches as high as 90%, demonstrates feasibility of this experimental design.