کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
232480 465289 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Advanced wastewater treatment with autoclaved aerated concrete particles in biological aerated filters
ترجمه فارسی عنوان
تصفیه فاضلاب پیشرفته با ذرات بتن هوادهی شده اتوکلاوی در فیلترهای هوادهی بیولوژیکی
کلمات کلیدی
اتوکلاو ذرات فوم بتن؛ تخلخل؛ حذف همزمان نیتروژن و فسفر؛ فیلتر هوادهی بیولوژیکی؛ نیتریفیکاسیون نیتروژن دهی همزمان
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Autoclaved aerated concrete particles (AACP) were tested as biofilter carriers in biological aerated filters (BAF) to solve the disposal problems of construction wastes. AACP were characterized using X-ray diffraction, X-ray fluorescence, scanning electron microscopy, and porosimetry analysis. Results showed that the main crystalline phases of SiO2, Ca5Si6O18H2, CaO, and Al2O3 were the major oxides and hydrous silicates in AACP. In addition, AACP had a high total porosity of 89.21% and a high specific surface area of 81 m2/g. Different from commercially available ceramsite (CAC), AACP had an open macroporous structure that was suitable for immobilizing microorganisms. AACP and CAC were loaded into two identical BAFs to compare the efficiency of their microbial treatment of wastewater. AACP BAF was more efficient than CAC BAF in terms of TOC, NH3-N, TN, and PO43− removal. Therefore, AACP, as a novel product of recycling construction waste, provide a promising way to utilize construction waste.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Water Process Engineering - Volume 9, February 2016, Pages 188–194
نویسندگان
, , , , , , , ,