Adsorption property of aerobic granular sludge for sunset yellow in aqueous solutions - 文章详情页

作者：

Zhang, Yan-Zhuo (Zhang, Yan-Zhuo.) | Li, Jun (Li, Jun.) (学者：李军) | Li, Yun (Li, Yun.) | Chen, Guang-Hui (Chen, Guang-Hui.) | Bian, Wei (Bian, Wei.)

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EI Scopus PKU CSCD

摘要：

The　ability　of　aerobic　granular　sludge　(AGS)　to　adsorb　sunset　yellow　(SY)　in　aqueous　solutions　is　investigated,　and　the　adsorption　process　affected　by　pH　value,　adsorbent　dosage,　initial　SY　concentration　and　temperature　is　explored.　The　results　show　that　(1)　pH　value　is　an　important　influencing　factor　of　adsorption　efficiency;　(2)　the　best　adsorption　is　achieved　at　a　pH　value　of　2,　an　AGS　dosage　of　2　g/L　and　a　temperature　of　35;　(3)　the　equilibrium　adsorption　capacity　is　positively　correlated　with　the　initial　SY　concentration;　and　(4)　the　equilibrium　adsorption　data　accord　the　Langmuir　model　and　the　pseudo-second-order　kinetic　model　well,　with　a　saturated　SY　adsorption　capacity　of　142.86　mg/L.　Thermodynamic　analysis　indicates　that　the　adsorption　process　is　spontaneous　and　endothermic　for　dye,　and　that　low　SY　concentration　benefits　the　adsorption　affinity.　Thus,　it　comes　to　the　conclusion　that　AGS　can　be　used　as　a　low-cost　adsorbent　for　the　removal　of　SY　dye　from　wastewater.　©,　2015,　South　China　University　of　Technology.　All　right　reserved.

关键词：

Adsorption Dyes Enzyme kinetics Granular materials pH Thermoanalysis Thermodynamics

作者机构：

[ 1 ] [Zhang, Yan-Zhuo]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Li, Jun]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Li, Yun]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Chen, Guang-Hui]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Bian, Wei]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

李军
[li, jun]key laboratory of beijing for water quality science and water environment recovery engineering, college of architecture and civil engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

jglijun@bjut.edu.cn

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