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مقاله Biological treatment of a bagasseدرbased soda bleach plant effluent with coriolus versicolor در word

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 مقاله Biological treatment of a bagasseدرbased soda bleach plant effluent with coriolus versicolor در word دارای 6 صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

فایل ورد مقاله Biological treatment of a bagasseدرbased soda bleach plant effluent with coriolus versicolor در word  کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه  و مراکز دولتی می باشد.

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توجه : در صورت  مشاهده  بهم ريختگي احتمالي در متون زير ،دليل ان کپي کردن اين مطالب از داخل فایل ورد مي باشد و در فايل اصلي مقاله Biological treatment of a bagasseدرbased soda bleach plant effluent with coriolus versicolor در word،به هيچ وجه بهم ريختگي وجود ندارد


بخشی از متن مقاله Biological treatment of a bagasseدرbased soda bleach plant effluent with coriolus versicolor در word :

سال انتشار: 1388

محل انتشار: اولین کنفرانس بین المللی تصفیه فاضلاب و بازیافت آب، فناوری ها و یافته های نو

تعداد صفحات: 6

نویسنده(ها):

R Naghdi – Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, 31585-4314 Karaj, Iran
A.N Karimi – Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, 31585-4314 Karaj, Iran
Y Hamzeh – Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, 31585-4314 Karaj, Iran
A.J Latibari – Department of Wood and Paper Science and Technology, Faculty of Natural Resources, Azad Islamic University, Karaj, Iran

چکیده:

The effect of rainbow fungus (Coriolus versicolor) on the properties of paper mill bleaching effluent containing chlorinated compounds was investigated. Initially, the independent effect of operating variables including time, temperature, pH, and biomass on color reduction were investigated keeping constant the other variables in the optimum growth conditions of fungi given in literature. The highest color reductions were observed at the treatment time of 6 days (58%), pH of 3 (48%), biomass dose of 9 g/l (59%) and temperature of 35°C (48%) respectively. To study the interactive effect of variables on the color reduction of effluent, and to find the best treatment levels leading to the highest color reduction, two optimum levels of each treatment were selected and tested. It was observed that rainbow fungus had the highest effect on color reduction (66%) in the temperature, treatment time, biomass dose, and pH of 35°C, 6 days, 9 g/l, and 3 respectively. In this condition, COD and BOD of effluent were decreased by 45% and 53%, respectively. It was found that Coriolus versicolor efficiently reduced the various poisonous compounds of chlorophenols, chloroguaiacols, and chlorocatechols present in Pars paper mill bleaching plant effluent to the level less than their lethal concentration (96LC50) in most cases. Globally, it can be concluded that rainbow fungus can efficiently reduce the undesirable physico-chemical properties of bleaching effluent of bagasse soda pulp.

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