Color Removal from Industrial Textile Wastewater Using Chemical Adsorption

Abstract

Industrial wastewaters from local state textile industry (Al-Khadimia Textile Co.) as well as aqueous prepared solutions of color dyes were subjected to simple physico-chemical treatment. The effect of pollutants concentrations, magnesia and other coagulants doses, filtration rate and the overall run time on the water quality were studied in detail. The treatment involves the addition of either magnesia or lime-water suspensions (combined with CPE) in various doses, 0.1-1.0 g/l to the wastewater and colored samples, to study the effect of varying doses on the treatment efficiency. The optimum values of MgO doses were found to be 0.2-0.4 g/l for synthetic colored. Doses of 0.05-0.2 g/l were the best for industrial wastewater. The removal efficiency of all the pollutants in the different samples increases to more than 95% by increasing the pH values to the range of 9.5 to 10 with MgO coagulant and pH of 11.5 to 12 with CaO coagulant. In the jar experiments the rotation speed, N, of 120-140 rpm, for two minutes was the most favorable speed of coagulation mixing for industrial waters. For flocculation, the mixing speed of 35-40 rpm, (G of 40-45 s-1) gave the best removal efficiencies with 20-30 min detention time. At the best operating conditions of the pilot plant, the removal efficiencies of Turbidity, TSS, and color were 97-99%, 94-96%, 94-95%. The TDS removal efficiency was of 39% for Al-Khadimia wastewater. ‫اﻟﺻﺑﻐﯾﺔ‬ ‫اﻟﻣﻠوﺛﺎت‬ ‫ازاﻟﺔ‬ ‫ﻣن‬ ‫ﻣﯾﺎه‬ ‫اﻟﻧﺳﯾﺞ‬ ‫اﻟﺻﻧﺎﻋﯾﺔ‬ ‫اﻟﻣﺻرﻓﺔ‬ ‫ﺑﺎﺳﺗﺧدام‬ ‫اﻻﻣﺗزاز‬ ‫اﻟﻛﯾﻣﯾﺎوي‬ ‫اﻟﺧﻼﺻﺔ‬ ‫ن‬ ‫ﻣ‬ ‫رﻓﺔ‬ ‫اﻟﻣﺻ‬ ‫ﻧﺎﻋﯾﺔ‬ ‫اﻟﺻ‬ ‫ﺎه‬ ‫اﻟﻣﯾ‬ ‫ان‬) ‫ﺔ‬ ‫اﻟﻘطﻧﯾ‬ ‫ﻧﺎﻋﺎت‬ ‫ﻟﻠﺻ‬ ‫ﺔ‬ ‫اﻟﻌﺎﻣ‬ ‫رﻛﺔ‬ ‫اﻟﺷ‬-‫ﻧﻊ‬ ‫ﻣﺻ‬ ‫ﯾﺞ‬ ‫ﻧﺳ‬ ‫اﻟﻛﺎظﻣﯾﺔ‬ (‫ﺎ‬ ‫ﻛﻠﮭ‬ ‫ﺔ‬ ‫ﻣﺧﺗﻠﻔ‬ ‫ز‬ ‫وﺑﺗراﻛﯾ‬ ‫ﻣﺧﺗﻠﻔﺔ‬ ‫ﺻﺑﻐﺎت‬ ‫ﻟﻌدة‬ ‫ﻣﺧﺗﺑرﯾﺎ‬ ‫اﻟﻣﺣﺿره‬ ‫اﻟﻣﺎﺋﯾﮫ‬ ‫اﻟﻣﺣﺎﻟﯾل‬ ‫وﻛذﻟك‬ ‫د‬ ‫ﻗ‬ PDF created with pdfFactory Pro trial version www.pdffactory.com ‫ﻋوﻟﺟت‬ ‫ﺔ‬ ‫اﻟﻛﯾﻣﯾﺎوﯾ‬ ‫ﺔ‬ ‫اﻟﻔﯾزﯾﺎوﯾ‬ ‫ﺑﺎﻟطرﯾﻘﺔ‬. ‫ﻊ‬ ‫ﻣ‬ ‫وم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬ ‫ق‬ ‫ﻣﻌﻠ‬ ‫ﺎﻓﺔ‬ ‫أﺿ‬ ‫ﻣن‬ ‫ﺗﺗﺿ‬ ‫ﮫ‬ ‫اﻟطرﯾﻘ‬ ‫ذه‬ ‫ھ‬ ‫ﺎء‬ ‫ﻣ‬ ‫ﻔﺎت‬ ‫ﻣواﺻ‬ ‫ن‬ ‫ﻣ‬ ‫ن‬ ‫ﯾﻣﻛ‬ ‫ﺎ‬ ‫ﻣ‬ ‫رب‬ ‫اﻗ‬ ‫ﺎﻟﺞ‬ ‫اﻟﻣﻌ‬ ‫ﺎء‬ ‫اﻟﻣ‬ ‫ﻔﺎت‬ ‫ﻣواﺻ‬ ‫ل‬ ‫ﻟﺟﻌ‬ ‫ره‬ ‫ﻓﻠﺗ‬ ‫ﺔ‬ ‫ﻋﻣﻠﯾ‬ ‫ك‬ ‫ذﻟ‬ ‫ﻊ‬ ‫ﯾﺗﺑ‬ ‫ﺎء‬ ‫اﻟﻣ‬ ‫اﻻﺳﺎﻟﺔ‬. ‫ان‬ ‫اﻟرﻣل‬ ‫طرﯾق‬ ‫ﻋن‬ ‫اﻟﻔﻠﺗره‬ ‫وﻋﻣﻠﯾﺔ‬ ‫واﻟﺗﻠﺑﯾد‬ ‫اﻟﺗﺧﺛﯾر‬ ‫ﻋﻣﻠﯾﺔ‬ ‫درﺳت‬ ‫ﻗد‬ ‫ﺎ‬ ‫ﻛﺄﺳ‬ ‫ﺔ‬ ‫ﻣﻛﺛﻔ‬ ‫وره‬ ‫ﺑﺻ‬ ‫س‬ ‫اﻟﻣﻌﺎﻟﺟﺔ‬ ‫ﻟﻌﻣﻠﯾﺔ‬ ‫ﻋﻠﻣﻲ‬. ‫وﺟد‬ ‫وﻗد‬ ‫د‬ ‫ﻗ‬ ‫اﻟﻠوﻧﯾﺔ‬ ‫اﻟﺻﺑﻐﺎت‬ ‫ان‬ ‫اﻣﺗﺻ‬ ‫ت‬ ‫ﺎت‬ ‫ﺣﺑﯾﺑ‬ ‫ق‬ ‫طرﯾ‬ ‫ن‬ ‫ﻋ‬ ‫دة‬ ‫ﺟﯾ‬ ‫ورة‬ ‫ﺑﺻ‬ ‫ﻠﻲ‬ ‫اﻻﺻ‬ ‫ﺎﺋل‬ ‫اﻟﺳ‬ ‫ن‬ ‫ﻋ‬ ‫ﻠت‬ ‫اﻧﻔﺻ‬ ‫د‬ ‫وﻗ‬ ‫ﯾوم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬. ‫ت‬ ‫درﺳ‬ ‫ﺗر‬ ‫ا‬ ‫ﺎت‬ ‫اﻟﻣﻠوﺛ‬ ‫ز‬ ‫ﻛﯾ‬ ، ‫ﯾد‬ ‫اوﻛﺳ‬ ‫ز‬ ‫ﺗرﻛﯾ‬ ‫رى‬ ‫اﻻﺧ‬ ‫ﺔ‬ ‫اﻟﻛﯾﻣﯾﺎوﯾ‬ ‫واد‬ ‫واﻟﻣ‬ ‫وم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ، ‫رارة‬ ‫اﻟﺣ‬ ‫ﺔ‬ ‫درﺟ‬ ، ‫ذه‬ ‫ھ‬ ‫ر‬ ‫واﺛ‬ ‫زﻣن‬ ‫اﻟ‬ ‫ل‬ ‫وﻋﺎﻣ‬ ‫ره‬ ‫اﻟﻔﻠﺗ‬ ‫دل‬ ‫ﻣﻌ‬ ‫اﻟﻌ‬ ‫اﻟﻧﺎﺗﺞ‬ ‫اﻟﻣﻌﺎﻟﺞ‬ ‫اﻟﻣﺎء‬ ‫ﻧوﻋﯾﺔ‬ ‫ﻋﻠﻰ‬ ‫واﻣل‬. ‫ﯾوم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬ ‫ق‬ ‫ﻣﻌﻠ‬ ‫ﺎﻓﺔ‬ ‫أﺿ‬ ‫ﻣن‬ ‫ﺗﺗﺿ‬ ‫ﺔ‬ ‫اﻟﻣﻌﺎﻟﺟ‬-‫ﯾوم‬ ‫اﻟﻛﺎﻟﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬ ‫او‬ ‫ﺎء‬ ‫اﻟﻣ‬-‫ﺎء‬ ‫اﻟﻣ‬ ‫ﻣن‬ ‫ﻣﺧﺗﻠﻔﺔ‬ ‫ﺑﺟرﻋﺎت‬) 0.1-1.0 (‫ﻏم‬ / ‫ر‬ ‫ﻟﺗ‬ ‫ﺔ‬ ‫اﻟﻣﻠوﻧ‬ ‫ﺎت‬ ‫واﻟﻌﯾﻧ‬ ‫رﻓﺔ‬ ‫اﻟﻣﺻ‬ ‫ﺎه‬ ‫اﻟﻣﯾ‬ ‫ﻰ‬ ‫اﻟ‬ ، ‫ر‬ ‫ﺗﻐﯾ‬ ‫ر‬ ‫أﺛ‬ ‫ﺔ‬ ‫ﻟدراﺳ‬ ‫اﻟﻌﻣﻠﯾﺔ‬ ‫ﻛﻔﺎءة‬ ‫ﻋﻠﻰ‬ ‫اﻟﺟرﻋﺎت‬ ‫ﻛﻣﯾﺎت‬. ‫ﻟ‬ ‫اﻟﻛﻣﯾﺎت‬ ‫أﻧﺳب‬ ‫ان‬ ‫ﻲ‬ ‫ھ‬ ‫دت‬ ‫وﺟ‬ ‫ﯾوم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬ ‫ﺟرﻋﺎت‬) 0.2-0.4 (‫م‬ ‫ﻏ‬ / ‫ر‬ ‫ﻟﺗ‬ ‫ل‬ ‫ﻟﻠﻣﺣﺎﻟﯾ‬ ‫ره‬ ‫اﻟﻣﺣﺿ‬ ‫ﺔ‬ ‫اﻟﻣﻠوﻧ‬. ‫ﺔ‬ ‫اﻟﺣﻘﯾﻘﯾ‬ ‫ﻧﺎﻋﯾﺔ‬ ‫اﻟﺻ‬ ‫ﺎه‬ ‫اﻟﻣﯾ‬ ‫ﺔ‬ ‫ﻟﻣﻌﺎﻟﺟ‬ ‫ﯾوم‬ ‫اﻟﻣﻐﻧﯾﺳ‬ ‫ﯾد‬ ‫اوﻛﺳ‬ ‫ن‬ ‫ﻣ‬ ‫ﺎت‬ ‫اﻟﺟرﻋ‬ ‫ل‬ ‫اﻓﺿ‬ ‫ان‬ ‫ھﻲ‬ ‫اﻟﻣﺻرﻓﺔ‬) 0.05-0.2 (‫ﻏم‬ / ‫ﻟﺗر‬. ‫ن‬ ‫ﻣ‬ ‫ر‬ ‫ﻻﻛﺛ‬ ‫د‬ ‫ﺗزﯾ‬ ‫ﺎ‬ ‫ﻋﻣوﻣ‬ ‫اﻟﻣﻠوﺛﺎت‬ ‫ازاﻟﺔ‬ ‫ﻛﻔﺎءة‬ ‫ان‬ 95 % ‫ﺎدة‬ ‫ﺑزﯾ‬ ‫اﻟﮭﯾدروﺟﯾﻧﻲ‬ ‫اﻻس‬ pH ‫اﻟﻰ‬ 9.5-10 ‫اﻟﺟرة‬ ‫ﻓﺣص‬ ‫ﺟﮭﺎز‬ ‫ﺑﺎﺳﺗﺧدام‬ ‫ﻟ‬ ‫ﺳرﻋﺔ‬ ‫ﺗﺣدﯾد‬ ‫ﻠﺗﺟﺎرﺑﺗم‬ 120-140 ‫دوره‬ / ‫ﺔ‬ ‫دﻗﯾﻘ‬ ‫ﯾن‬ ‫دﻗﯾﻘﺗ‬ ‫دة‬ ‫ﻟﻣ‬ ‫و‬) 35-40 (‫دورة‬ / ‫دﻗﯾﻘﺔ‬ ‫ﻟﻣدة‬) 20-30 (‫دﻗﯾﻘﺔ‬ ‫اﻟﺗﺧﺛ‬ ‫ﻟﻣرﺣﻠﺗﻲ‬ ‫اﻟﻘ‬ ‫اﻓﺿل‬ ‫ﺑﺎﻋﺗﺑﺎرھﺎ‬ ‫واﻟﺗﻠﺑﯾد‬ ‫ﯾر‬ ‫ﯾم‬. ‫ﻐﯾﻠﯾﺔﻟ‬ ‫اﻟﺗﺷ‬ ‫روف‬ ‫اﻟﺿ‬ ‫ل‬ ‫اﻓﺿ‬ ‫د‬ ‫ﻋﻧ‬ ‫ﺔ‬ ‫اﻟرﯾﺎدﯾ‬ ‫ﻠﻣﻧظوﻣﺔ‬ ‫و‬ ‫ورة‬ ‫اﻟﻌﻛ‬ ‫ﺔ‬ ‫ازاﻟ‬ ‫ﺎءة‬ ‫ﻛﻔ‬ ‫ت‬ ‫ﻛﺎﻧ‬ TDS ‫و‬ ‫واﻻﻟوان‬ TSS ‫ھﻲ‬ 97-99 % ، 94-96 % ، 94-95 % ‫و‬ 39 % ‫ن‬ ‫ﻣ‬ ‫رﻓﺔ‬ ‫اﻟﻣﺻ‬ ‫اﻟﺻﻧﺎﻋﯾﺔ‬ ‫ﻟﻠﻣﯾﺎه‬ ‫اﻟﻛﺎظﻣﯾﺔ‬ .