Decolorization of Industrial Wastewater Using Some Coagulants by Electrochemical Method and UV/VIS spectroscopy
محل انتشار: بیستمین کنگره شیمی ایران
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 284
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شناسه ملی سند علمی:
IRANCC20_549
تاریخ نمایه سازی: 28 اردیبهشت 1398
چکیده مقاله:
Existence of color in water increases the potential for the formation of tri-halomethanes, and the generative compounds in it may be deposited in the distribution network and re-suspended. Industrial waste from the textile industry and dyeing operations, pulp and paper production, food industry, chemical production and ore mining may be produce color in the water due to the association with natural streams and river, and makes the purification process indispensable. Colorant wastewater containing orange, carbazite beryllite bloween, malachite green, purple and electrolyte solution of sodium chloride salt, was purified in a designed glass cell with dimensions of 15cm x 10cm, metal electrodes with dimensions 14 cm × 9cm × 2mm. The UV/VIS spectroscopy was used to indicate its removal from absorption. The whole process of testing, taking into account the main factors, was determined by the effect of pH, contact time effect, color concentration effect and temperature effect, and each time in ten steps to obtain optimal conditions was conducted. The best results were obtained in 14 g/l electrolytes, 8 volt applied voltage, pH = 5, iron electrode type and 2 cm distance, temperature 25°C in10 minutes. Using this method, we were able to dye 99.9% of simulated wastewater.
نویسندگان
Sima Khiltash
Islamic Azad University Arak Branch, Ph.D. Analytical Chemistry Student, Arak, Iran
Mehrangiz Atyabi
Islamic Azad University Boroujerd Branch, Ph.D. Physical chemistry Student, Arak, Iran
Ali souri
Islamic Azad University Arak Branch, Ph.D. Analytical Chemistry Student, Arak, Iran