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Ãû³Æ£ºAdsorption isotherms and kinetics of acid violet 48 onto sludge-straw adsorbent
×÷ÕߣºXiao Li Ren

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rxl2010: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2017-12-19 10:43:18
Ðľ²_ÒÀÈ»: LS-EPI+1, ¸ÐлӦÖú 2017-12-29 11:08:26
Adsorption isotherms and kinetics of acid violet 48 onto sludge-straw adsorbent


×÷Õß:Ren, XL (Ren, Xiao Li)[ 1 ] ; Lai, XH (Lai, Xue Hui)[ 1 ] ; Sun, Y (Sun, Yao)[ 1 ] ; He, DL (He, Dong Liang)[ 1 ] ; Lei, J (Lei, Juan)[ 1 ]




DESALINATION AND WATER TREATMENT



¾í: 68

Ò³: 301-309

DOI: 10.5004/dwt.2017.20411

³ö°æÄê: MAR 2017

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The sludge-straw adsorbent was prepared by chemical pyrolysis and characterized by Brunauer Emmett Teller (BET), T-plot, Barrette Joynere Halenda (BJH), scanning electron microscope (SEM) and Fourier transform infrared red (FTIR) spectrometer. Batch experiments were conducted to evaluate the effect of temperature, contact time, initial dye concentration, pH and adsorbent dose. Adsorption mechanism of acid violet 48 onto the sludge-straw adsorbent had been discussed preliminarily on the basis of different kinetics and adsorption isotherm models. The results showed that the pseudo-second order adsorption mechanism was predominant. The maximum adsorption capacity obtained from Langmuir model was 833.33 mg/g at 308 K. Isotherm parameters were calculated, the results indicated that the adsorption processes were endothermic (Delta H > 0), spontaneous (Delta G < 0) and accompanied by an increase in randomness (Delta S > 0).


¹Ø¼ü´Ê

×÷Õ߹ؼü´Ê:Acid violet 48; Adsorption; Isotherm; Thermodynamic; Kinetic

KeyWords PlusYE CRYSTAL VIOLET; AQUEOUS-SOLUTIONS; METHYLENE-BLUE; TEXTILE DYES; HEN FEATHER; ACTIVATED CARBON; CATIONIC DYE; PEANUT HUSK; WASTE-WATER; CONGO RED


×÷ÕßÐÅÏ¢

ͨѶ×÷ÕßµØÖ·: Ren, XL (ͨѶ×÷Õß)



      

Taiyuan Inst Technol, Dept Environm & Safety Engn, Taiyuan 030008, Shanxi, Peoples R China.



µØÖ·:



      

[ 1 ] Taiyuan Inst Technol, Dept Environm & Safety Engn, Taiyuan 030008, Shanxi, Peoples R China



µç×ÓÓʼþµØÖ·:xlren66@126.com; 447960078@qq.com; 373820760@qq.com; 418631947@qq.com; 471170382@qq.com


»ù½ð×ÊÖúÖÂл



»ù½ð×ÊÖú»ú¹¹

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Shanxi Science and Technology Agency Research Project


2015011018



Fund for Shanxi Key Subjects Construction



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DESALINATION PUBL, 36 WALCOTT VALLEY DRIVE,, HOPKINTON, MA 01748 USA


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Ñо¿·½Ïò:Engineering; Water Resources

Web of Science Àà±ð:Engineering, Chemical; Water Resources


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ÎÄÏ×ÀàÐÍ:Article

ÓïÖÖ:English

Èë²ØºÅ: WOS:000403569900033

ISSN: 1944-3994

eISSN: 1944-3986


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IDS ºÅ: EX9HX

Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 42

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