کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7079154 | 1459992 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The re-use of Waste-Activated Sludge as part of a “zero-sludge” strategy for wastewater treatments in the pulp and paper industry
ترجمه فارسی عنوان
استفاده مجدد از لجن فعال آفتاب به عنوان بخشی از لجن صفر؟ استراتژی برای تصفیه فاضلاب در صنعت کاغذ و کاغذ
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کلمات کلیدی
هضم بی هوازی هیدرولیز، فاضلاب کاغذ و کاغذ، استفاده مجدد از لجن فعال، لجن صفر،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The possibility of introducing the thermo-alkali hydrolysis of Waste-Activated Sludge (WAS) was investigated, in order to enable the use of its solid residue as a raw material in cardboard production and the use of its liquid portion for anaerobic digestion in an UASB reactor. The evaluation of the hydrolysis at pH > 12 and T = 70 °C showed that the microbe cells were disrupted with more than 90% efficiency in less than 2 h. The solid portion was hygienised, therefore making it possible to integrate it into the cardboard production as a raw material for less demanding cardboards. Up to 6% addition of the liquid portion of hydrolysed WAS to wastewater decreased the specific biogas production in a pilot-scale UASB from 0.236 to 0.212 m3/kgCOD, while the efficiency of the COD removal decreased from 80.4% to 76.5%. These values still guarantee an adequate treatment of the wastewater and an increased biogas production by 16%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 151, January 2014, Pages 137-143
Journal: Bioresource Technology - Volume 151, January 2014, Pages 137-143
نویسندگان
Leon Kaluža, Matej Å uÅ¡tarÅ¡iÄ, Vera Rutar, Gregor D. ZupanÄiÄ,