Process optimization of adsorption of Cr(VI) on adsorbent prepared from Bauhinia rufescens pod by Box-Behnken Design

被引：14

作者：

Alabi, Olushola ^{[1
]}

Olanrewaju, Alade Abass ^{[2
]}

Afolabi, Tinuade Jolaade ^{[1
]}

机构：

[1] Ladoke Akintola Univ Technol, Fac Engn & Technol, Ogbomosho, Nigeria

[2] Ladoke Akintola Univ Technol, Fac Engn & Technol Chem Engn, Ogbomosho, Nigeria

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 01期

关键词：

Adsorption; adsorbent; Bauhinia rufescens; Box-Behnken Design; chromium; optimization; ACTIVATED CARBON; WASTE-WATER; AQUEOUS-SOLUTIONS; CATALYZED ESTERIFICATION; HEXAVALENT CHROMIUM; HEAVY-METAL; REMOVAL; IONS; BIOSORPTION; KINETICS;

D O I：

10.1080/01496395.2019.1577436

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This study investigated chromium (VI) removal from simulated water using H3PO4 modified Bauhinia rufescens pod (ACBRP). Box-Behnken Design was used to optimize pH (2-10), time (30-120 min), agitation (120-200 rpm), and temperature (25-40 degrees C) for the adsorption process. Highest adsorption capacity (AC) and removal efficiency (RE) obtained were 9.762 mg/g and 87.62%. Correlation coefficient of the quadratic models developed was 0.9822 and 0.9790 for AC and RE, respectively. Second-order kinetic model fitted well the data while Weber Morris model is the preferred film diffusion mechanism. ACBRP was found to be effective for chromium (VI) removal.

引用

页码：47 / 60

页数：14

共 50 条

[1] Heavy metal ions adsorption from dairy industrial wastewater using activated carbon from milk bush kernel shell [J].

Afolabi, Tinuade J. ;

Alade, Abass O. ;

Jimoh, Monsurat O. ;

Fashola, Isaiah O. .

DESALINATION AND WATER TREATMENT, 2016, 57 (31) :14565-14577

[2] Biosorption of chromium(VI) ions by Mowital®B30H resin immobilized activated sludge in a packed bed:: comparison with granular activated carbon [J].

Aksu, Z ;

Gönen, F ;

Demircan, Z .

PROCESS BIOCHEMISTRY, 2002, 38 (02) :175-186

[3]

Alade A. O., 2012, Journal of Bioremediation and Biodegradation, V3, P1000134

[4]

Alade AO., 2012, J ENV CHEM ECOTOXICO, V4, P124, DOI DOI 10.5897/JECE11.041

[5] Adsorption kinetics and thermodynamics of an anionic dye onto sepiolite [J].

Alkan, Mahir ;

Demirbas, Ozkan ;

Dogan, Mehmet .

MICROPOROUS AND MESOPOROUS MATERIALS, 2007, 101 (03) :388-396

[6] Removal of heavy metal from industrial wastewater using modified activated coconut shell carbon [J].

Amuda, O. S. ;

Giwa, A. A. ;

Bello, I. A. .

BIOCHEMICAL ENGINEERING JOURNAL, 2007, 36 (02) :174-181

[7] Crab shell for the removal of heavy metals from aqueous solution [J].

An, HK ;

Park, BY ;

Kim, DS .

WATER RESEARCH, 2001, 35 (15) :3551-3556

[8]

ANIRBAN K, 2015, J TAIWAN I CHEM ENG

[9] Optimization of oil extraction from Pitanga (Eugenia uniflora L.) leaves using simplex centroid design [J].

Araromi, Dauda O. ;

Alade, Abass O. ;

Bello, Muibat O. ;

Bakare, Taofiq ;

Akinwande, Bolanle A. ;

Jameel, Ahmed T. ;

Adegbola, Samuel A. .

SEPARATION SCIENCE AND TECHNOLOGY, 2017, 52 (08) :1341-1349

[10]

Asiedu J. B. K., 2012, International Journal of Agricultural Research, V7, P195, DOI 10.3923/ijar.2012.195.204

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