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Recycling of waste bread as culture media for efficient biological treatment of wastewater
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نویسنده
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kim y.-j. ,kim p.-j. ,kim j.-h. ,lee c.-s. ,qureshi t.i.
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منبع
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journal of the chemical society of pakistan - 2012 - دوره : 34 - شماره : 2 - صفحه:345 -349
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چکیده
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Possibilities of recycling of waste bread as culture media for efficient biological treatment of wastewater were investigated. in order to get the highest growth of microorganism for increased contaminants' removal efficiency of the system,different compositions of waste bread and skim milk with and without adding powdered activated carbon (pac) were tested. mixed waste bread compositions with added pac showed relatively higher number of microorganisms than the compositions without added pac. a composition of 40% mixed waste bread and 60% skim milk produced highest number of microorganisms with subsequent increased contaminants' removal efficiency of the system. contrast alone showed lower contaminants' removal efficiency than mixed bread compositions. use of waste bread in the composition of skim milk reduced cost of using foreign source of nutrients in biological treatment of wastewater and also facilitated waste bread management through recycling.
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آدرس
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department of environmental engineering,kyungpook national university, South Korea, department of environmental engineering,kyungpook national university, South Korea, department of health environment,daegu health college, South Korea, department of chemical engineering,nfc-institute of engineering and technological training, Pakistan
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Authors
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