中国环境科学
中國環境科學
중국배경과학
CHINA ENVIRONMENTAL SCIENCE
2014年
1期
78-84
,共7页
高淑玲%杨翠玲%罗鑫圣%周鹏鑫%张哲
高淑玲%楊翠玲%囉鑫聖%週鵬鑫%張哲
고숙령%양취령%라흠골%주붕흠%장철
坡缕石黏土污泥%亚甲基蓝%吸附热力学%动力学%吸附模型
坡縷石黏土汙泥%亞甲基藍%吸附熱力學%動力學%吸附模型
파루석점토오니%아갑기람%흡부열역학%동역학%흡부모형
palygorskite’s clay sludge%methylene blue%adsorption thermodynamics%kinetics%adsorption model
利用坡缕石黏土污泥(从木质素磺酸钠废水中得到)和酸化的坡缕石黏土(1mol/L 盐酸)作为吸附剂对水相中的亚甲基蓝进行吸附研究,并利用透射电镜(TEM)、红外光谱(FT-IR)、X-射线衍射(XRD)及Zeta电位分析对两种吸附剂的结构及表面电性进行了表征.结果表明:当吸附剂用量为10mg,温度为30℃时,1mol/L盐酸酸化的坡缕石黏土最大吸附量为97.50mg/g,坡缕石黏土污泥最大吸附量为98.7mg/g.选取坡缕石黏土污泥作为最佳吸附剂,对污泥吸附亚甲基蓝的吸附等温线、吸附热力学及吸附动力学模型进行了研究,结果显示:此吸附过程为自发吸热过程,吸附等温线更符合Langmuir模型,吸附动力学符合准二级动力学模型.
利用坡縷石黏土汙泥(從木質素磺痠鈉廢水中得到)和痠化的坡縷石黏土(1mol/L 鹽痠)作為吸附劑對水相中的亞甲基藍進行吸附研究,併利用透射電鏡(TEM)、紅外光譜(FT-IR)、X-射線衍射(XRD)及Zeta電位分析對兩種吸附劑的結構及錶麵電性進行瞭錶徵.結果錶明:噹吸附劑用量為10mg,溫度為30℃時,1mol/L鹽痠痠化的坡縷石黏土最大吸附量為97.50mg/g,坡縷石黏土汙泥最大吸附量為98.7mg/g.選取坡縷石黏土汙泥作為最佳吸附劑,對汙泥吸附亞甲基藍的吸附等溫線、吸附熱力學及吸附動力學模型進行瞭研究,結果顯示:此吸附過程為自髮吸熱過程,吸附等溫線更符閤Langmuir模型,吸附動力學符閤準二級動力學模型.
이용파루석점토오니(종목질소광산납폐수중득도)화산화적파루석점토(1mol/L 염산)작위흡부제대수상중적아갑기람진행흡부연구,병이용투사전경(TEM)、홍외광보(FT-IR)、X-사선연사(XRD)급Zeta전위분석대량충흡부제적결구급표면전성진행료표정.결과표명:당흡부제용량위10mg,온도위30℃시,1mol/L염산산화적파루석점토최대흡부량위97.50mg/g,파루석점토오니최대흡부량위98.7mg/g.선취파루석점토오니작위최가흡부제,대오니흡부아갑기람적흡부등온선、흡부열역학급흡부동역학모형진행료연구,결과현시:차흡부과정위자발흡열과정,흡부등온선경부합Langmuir모형,흡부동역학부합준이급동역학모형.
The absorption effect of the palygorskite clay sludge (obtained from the sodium lignosulfonate wastewater) and acid-treated palygorskite (1mol/L HCL) was investigated, methylene blue in aqueous solution as an adsorbate. The structure and surface electricity-performance of two types of adsorbents were characterized by transmission electron microscopy (TEM), FT-IR spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XRD) and zeta potential. The results showed that the maximum adsorption capacities of palygorskite clay sludge and acid-treated palygorskite were 98.7mg/g and 97.50mg/g at 30℃, respectively. When the palygorskite clay sludge was selected as the adsorbent, the absorption process was spontaneous endothermic, the adsorption isotherms followed Langmuir equation, and the dynamic data fitted pseudo-second order kinetic model well.