Abstract:The optimum conditions of the preparation of MgO/AC from the high temperature calcination of Mg (OH)2/AC which was a waste from dyeing wastewater was studied. The MgO/AC product was characterized by the thermogravimetry- differential thermal analysis (TG-DTA), brunaner-emmett-teller (BET), and X-ray diffraction (XRD). The adsorption ability of weak acid brilliant blue RAWL on fresh MgO/AC and after regeneration was tested. It was showed that Pseudo-second-order model and Langmuir model fitted the adsorption of the RAWL on MgO/AC at 293 ~ 313K. After 4times of regeneration, the adsorption capacity of MgO/AC was 1.08 times higher than the fresh MgO/AC, and 2.11times higher than the fresh Mg (OH)2/AC.
孙金香, 王海增. 废弃Mg(OH)2/AC焙烧产物对染料吸附性能研究[J]. 中国环境科学, 2014, 34(2): 390-395.
SUN Jin-Xiang, WANG Hai-Zeng. Adsorption of dye on calcinate product of the waste Mg(OH)2/AC composite. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(2): 390-395.