کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2445090 | 1108348 | 2019 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Treatment of Wastewater from a Whey Processing Plant Using Activated Sludge and Anaerobic Processes
ترجمه فارسی عنوان
درمان فاضلاب از یک کارخانه تولید گوشتی با استفاده از لجن فعال و فرآیندهای بی هوازی
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کلمات کلیدی
TSSTOCHRTBOD5MLVSSVSs - VSSchemical oxygen demand - تقاضای اکسیژن شیمیاییAnaerobic treatment - درمان بی هوازیhydraulic retention time - زمان هیدرولیکیActivated sludge - لجن فعالtotal suspended solids - مجموع مواد جامد معلقVolatile suspended solids - مواد جامد معلق دائمیmixed liquor volatile suspended solids - مواد جامد معلق فرار مخلوط شده استCod - کادوTotal organic carbon - کل کربن آلی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
Wastewater from a whey processing plant was treated in two on-site pilot plants, a three-stage activated sludge plant and an anaerobic reactor, each of which had the capacity of treating 230 L/h of wastewater. The activated sludge treatment was very effective. It reduced 99% of 5-d biochemical oxygen demand of the plant wastewater (from an average of 1062 to 9 mg/L) and 91% of total Kjeldahl nitrogen (from 109 to 10 mg/L) after a total retention time of 19.8Â h. The intermediate 5-d biochemical oxygen demand reductions were 86% after 3.8Â h in the first stage and 97% after another 8Â h in the second stage. The completely mixed anaerobic reactor reduced only 87% of 5-d biochemical oxygen demand after 2 d of retention. However, with an additional 8Â h of activated sludge treatment the total 5-d biochemical oxygen demand was reduced by 99%. Both pilot plants were operated smoothly in spite of the considerable fluctuations in pollutant levels of the plant wastewater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 74, Issue 6, June 1991, Pages 2015-2019
Journal: Journal of Dairy Science - Volume 74, Issue 6, June 1991, Pages 2015-2019
نویسندگان
Herbert H.P. Fang,