کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
627212 1455459 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphological characteristics and fractal approach of the flocs obtained from the natural organic matter extracts of water of the Keddara dam (Algeria)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Morphological characteristics and fractal approach of the flocs obtained from the natural organic matter extracts of water of the Keddara dam (Algeria)
چکیده انگلیسی

A technique of analysis of images coupled with a data processing system using VISILOG 5.2 software was used to determine the morphological characteristics of flocs obtained in natural organic matter (NOM) extracted from the waters of Keddara dam (supplying partially Algiers city, Algeria) and from synthetic fulvic acids. Slower sedimentation speeds (≈ 0.7 mm.s–1) as well as the small effective volumic masses (≈ 3 kg.m–3) of the flocs of NOM extracts from Keddara dam show poor sedimentation capacity. The fractal approach, involving natural extracts, showed that fractal dimensions obtained from two proposed relations are close (Df2 = 1.55–1.51 and Df3 = 1.99–1.91). Results reveal that, from an applied point of view, in spite of the optimization of the conditions of coagulation–flocculation, the NOM of Keddara dam can partially remove the advantage of optimisation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 231, Issues 1–3, 31 October 2008, Pages 314-322