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Treatment of Antibiotic Pharmaceutical Wastewater Using a Rotating Biological Contactor
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نویسنده
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su r. ,zhang g. ,wang p. ,li s. ,ravenelle r.m. ,crittenden j.c.
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منبع
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journal of chemistry - 2015 - دوره : 2015 - شماره : 0
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چکیده
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Rotating biological contactors (rbc) are effective for treating wastewater,while they are rarely reported to be used for treating antibiotic pharmaceutical wastewater (apw). the current study investigates treatment of apw using an rbc. the effects of influent concentration,number of stages,and temperature on the remediation of apw were studied. the results indicated,even at low ambient temperature,45% cod and 40% nh4+-n removal efficiencies. moreover,the bod5 removal efficiency was 85%. microscopic observations illustrated that there were various active microorganisms displayed in the biofilms and their distribution changed from stage to stage. compared with activated sludge,the biofilms in this study have higher content of dry matter and are easier to dehydrate and settle. compared with current commercial incineration processes or advanced oxidation processes,rbc can greatly reduce the treatment cost. this research shows rbc is effective for such an inherently biorecalcitrant wastewater even at low ambient temperature. © 2015 rongjun su et al.
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آدرس
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department of environmental engineering,harbin commerce university,harbin,china,school of municipal and environmental engineering,harbin institute of technology,harbin,china,school of civil and environmental engineering,georgia institute of technology,atlanta, United States, school of municipal and environmental engineering,harbin institute of technology,harbin,china,school of civil and environmental engineering,georgia institute of technology,atlanta, United States, school of municipal and environmental engineering,harbin institute of technology, China, department of environmental engineering,harbin commerce university, China, school of civil and environmental engineering,georgia institute of technology,atlanta, United States, school of civil and environmental engineering,georgia institute of technology,atlanta, United States
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Authors
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