کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
150561 456451 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fluorescent clays—Similar transfer with sensitive detection
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Fluorescent clays—Similar transfer with sensitive detection
چکیده انگلیسی

The significant probe dilution is one of the reasons to use soluble dyes and concentrated ion solutions for studies of colloid transport in subsoils and aquifers. We studied the clay transport in sand columns with Rhodamine 6G-intercalated montmorillonite (MMT). Our MMT-R exhibited transfer properties similar to the non-dyed clays but was detectable starting from 1 ppb by fluorescence and only from 0.5 ppm by turbidity. More contaminated soil adsorbed the MMT-R better than the pure one and therefore the reduction of influent turbidity may have the unintended effect of decreasing soil adsorption capacity.


► Two orders of magnitude higher sensitivity in detection of turbidity particles with a new tool—dyed intercalated clays.
► Organic matter and clays do not compete for sites but restructure the porous media for better accumulation.
► Reduction in colloidal turbidity may not be the correct target for improving the tertiary treatment.
► Fluorescent-marked colloids are useful in analysis of transport of pathogens and organic matter in subsoils.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 174, Issue 1, 15 October 2011, Pages 482–488
نویسندگان
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