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extraction and characterization of amorphous silica from rice husk for adsorption applications
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DOR
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20.1001.2.9919199705.1399.11.1.401.6
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نویسنده
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- - ,- - ,- - ,- -
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منبع
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كنگره مهندسي شيمي - 1399 - دوره : 11 - یازدهمین کنگره بین المللی مهندسی شیمی - کد همایش: 99191-99705
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چکیده
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The use of agricultural waste as an adsorbent because of its low cost, high abundance and environmental friendliness can be a good alternative to synthetic adsorbents# a combined open burned/high temperature furnace heat treatment method was examined to obtain silica from rice husk (rh) collected from rice lands of iran# the application of the obtained silica as adsorbent was also studied through adsorption of methylene blue# a white amorphous silica powder with efficiency of 20±2 %wt (silica/rh) and purity of 94% was obtained# the results of adsorption experiment showed that efficiency of this bioadsorbent for removal of methylene blue reached to 67% after five hours#
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کلیدواژه
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rice husk ,rice husk ash ,silica ,adsorption ,heat treatment
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آدرس
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birjand university of technology, iran, birjand university of technology, iran, birjand university of technology, iran, birjand university of technology, iran
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Authors
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