کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7080437 | 1459996 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Landfill leachate treatment as measured by nitrogen transformations in stabilization ponds
ترجمه فارسی عنوان
درمان تبخیر دفن زباله ها با تغییرات نیتروژن در حوضچه های تثبیت شده اندازه گیری می شود
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کلمات کلیدی
فاضلاب زباله، استخرهای تثبیت کننده، تعادل نیتروژن، رفتار،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
The treatment performance and nitrogen mass balance of a pilot-scale landfill leachate treatment system was evaluated. The system was comprised of a series of three ponds and a rock filter and was fed a continuous flow (200Â LÂ dâ1) during 111Â weeks. Three different operational conditions were investigated: conventional operation (stage I), aeration (stage II) and aeration/recirculation (stage III). The system was able to treat landfill leachate with soluble chemical oxygen demand and ammonia removal between 35-82% and 75-99%, respectively, and the highest removal occurred during the recirculation stage. The nitrogen balance was calculated using total nitrogen applied load and the main transformation processes within the ponds. The main form of nitrogen transformation/removal was by dead/inert algae settle (64-79%), followed by volatilization (12-27%) and algae assimilation (1-6%). Nitrification/denitrification occurred in only stage II. Analyses of the phytoplankton community showed that the Chlamydomonas genera were dominant in the photosynthetic ponds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 147, November 2013, Pages 562-568
Journal: Bioresource Technology - Volume 147, November 2013, Pages 562-568
نویسندگان
Cláudia L. Martins, HeloÃsa Fernandes, Rejane H.R. Costa,