膨润土粉煤灰的活化及其除臭机理  

ACTIVATING THCHNOLOGY AND DEODORIZING MECHANISM OF BENTONITE AND FLYING ASH

作　　者：彭勇军[1] 李晔[1] 许时[1] 

机构地区：[1]武汉工业大学非金属矿设计研究所,武汉430070

出　　处：《有色金属》1999年第2期83-85,共3页Nonferrous Metals

摘　　要：本文采用硫酸活化制得膨润土、粉煤灰以及二者混合（ＢＥＦＬ）除臭剂，对除臭剂吸附生臭有机物性能进行研究．通过比表面积的测定以及Ｘ-射线衍射分析，详细研究ＢＥＦＬ的除臭机理．试验表明．在硫酸溶液中，粉煤灰产生的聚合铝铁高子进入膨润土蒙脱石层间，并发生水解，撑大层间距，当ＢＥＦＬ投入臭水中，该聚合离子进入水中形成混凝剂，空出更大的层间，导致大量的生臭有机物的吸附．Three deodorants were made from sulfuric acid activating bentonite, flying ash and BEFL composed ofbentonite and flying ash.Specific surface measurement, X-ray diffraction analysis, absorption properties anddeodorizing mechanism were studied in detail by means of absorption tests. The result shows that in sulfuricacid solutions the polyions of aluminum and iron resulting from dissolution of the flying ash enter the spacebetween layers is of motmorillonite crystal, and enlarge the space after hydrolysis. When the BEFL deodorant isused to treat smelly water, the polyions vacate the space and form coagulants in water. With the result that,more smelly organisms are absorbed in the enlarged space.

关 键 词：膨润土 粉煤灰 除臭 吸附 活化 废水处理 

分 类 号：X703[环境科学与工程—环境工程]