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Assessment of rice husk based-biochar carbon for removal of toluene from pharmaceutical wastewater
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نویسنده
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yakout s.m. ,nay a.a. ,elkhashab r.a. ,el malah t.
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منبع
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journal of the chemical society of pakistan - 2016 - دوره : 38 - شماره : 6 - صفحه:1271 -1277
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چکیده
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In this study,rice husk based biochar (rhb) prepared by simple,efficient and cost effective method. then,rhb characterized by various techniques including brunauer,emmett and teller (bet),scanning electron microscopy (sem),and fourier transform infrared spectroscopy (ftir) analysis. rhb used for the removal and adsorption of toluene from pharmaceutical wastewater. toluene adsorption profile displayed an initial fast toluene uptake that reduced and reach equilibrium after two hours contact time at which up to 90 % toluene was taken by rhb from water. kinetic data well fitted by using pseudo-second order models (r2 =0.99),which representing that chemisorption mechanism. langmuir equation fitted well equilibrium data at all rhb dosage and maximum adsorption capacity was 108 mg/g. these findings suggest that the rhb is efficient toluene adsorbent and it possess good potential for toluene removal in wastewater treatment. © 2016,chemical society of pakistan. all rights reserved.
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کلیدواژه
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Adsorption kinetics; Biochar; Residual solvent; Rice husk; Toluene
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آدرس
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biochemistry department,college of science,king saoud university,saudi arabia,hot labs. centre,atomic energy authority,cairo, Egypt, chemistry department,college of science,aljouf university,skaka,saudi arabia,hot labs. centre,atomic energy authority,cairo, Egypt, chemistry department,college of science,aljouf university,skaka,saudi arabia,national center for clinical and environmental toxicology,faculty of medicine,cairo university,cairo, Egypt, chemistry department,college of science,aljouf university,skaka,saudi arabia,photochemistry department,national research centre,dokki,cairo, Egypt
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Authors
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