کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
624083 1455382 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on scale inhibition performances and interaction mechanism of modified collagen
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Study on scale inhibition performances and interaction mechanism of modified collagen
چکیده انگلیسی

The modified collagens with rich carboxyls were prepared by chemically modifying collagen, which was firstly extracted by hydrolyzing chrome shavings, using the multi-aldehyde acid compounds (MACs) as the modifiers. Then those modified collagens and the blank collagen were used as scale inhibitors to implement scale inhibition tests. Scanning electron microscope (SEM) and XRD analyses were utilized to characterize morphology and crystal form of calcium carbonate scale. Results showed that the Ca2 + concentration and pH were the main influencing factors within the scale inhibition system, specifically the scale inhibition efficiency would be reduced with the increase of Ca2 + concentration and pH. Both the two types of scale inhibitors were more sensitive to the temperature, i.e., the scale inhibition rates were in a downward trend with augment of the temperature. The crystal form of calcium carbonate could be completely distorted to form a vaterite crystal through the action of modified collagens, thus the scale inhibition effect is achieved.


► A scale inhibitor was prepared by modified chrome shavings hydrolyzing collagen.
► The scale inhibitor had good ability on calcium carbonate scale inhibition.
► The calcite crystal growth was inhibited by the scale inhibition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 309, 15 January 2013, Pages 237–242
نویسندگان
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