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《Multipurpose Utilization of Mineral Resources》 2006-01
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Preparation Characterization and Application of Bentonite Environment Rehabilitation Materials

Qi Xin-ping,ZHEN Wei-jun,LI Zhen-jiang,LI Zhi-juan,PANG Gu-lin(Xinjiang University,Urumqi,Xinjiang,China)  
Using Na-bentonite in Xinjiang Xiazijie as raw materials,the environment rehabilitation material was prepared and characterized by Xray diffraction and FTIR spectra.The FTIR spectrogram showed that the organic reagent(quaternary ammonium salt)had intercalated into the layers of bentonite;the spacing of layers of bentonite was increased from 1.277nm to 3.476nm observed by XRD.At the same time,the adsorption and influence factors of the organo-bentonite during the course of treating municipal sewage in Urumqi East River Sewage Plant were studied.It was shown that the adsorption of this material is excellent.Under the optimal conditions of pH=4,the dosage of adsorbent is 6g/L and stirring time is 30min,the removal percentage of COD existed in sewage is over 80%.
【Fund】: 新疆自治区2003年科技攻关;; 重点科技项目(200332108)
【CateGory Index】: X703
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