摘要
黄姜皂素纤维渣是黄姜酸水解提取部分皂素后的残余物,不经处理的纤维渣任意堆置带来了严重的固体废物污染.根据固体废物资源化的原则,采用化学活化剂(ZnCl2)两段法,使纤维渣资源化生产活性炭,确定了制备活性炭的最佳制备工艺条件:炭化温度300℃,炭化时间40min,活化温度600℃,活化时间1.5h,料液比1∶4,浸渍时间12h,ZnCl2溶液浓度40%.借助SEM,XRD和N2吸附实验等手段,对其结构与性能进行了表征,并运用于黄姜皂素废水的吸附实验,发现其脱色性能及去除有机物效果优于商业活性炭.因此,利用黄姜皂素纤维渣制备活性炭,不仅解决了其产生的固体废物污染,同时使其成为一种有效价廉优质的吸附剂.
Cellulose residues, the acid hydrolysis residues of discorea zingiberensis C. H. wright, have brought out serious solid waste pollution without being disposed. According to the principle of resource recycle, two steps activated methods were adapted to prepare activated carbon with chemical agent zinc chloride （ZnCl2） in this paper. The optimal process was determined： 300 ℃ carbonization temperature for 40 mins, 600 ℃ activated temperature for 1.5 h, the impregnation ratio 4 ： 1 （the mass of ZnC12 to that of raw material） and 12 h soaking time, 40% ZnCl2 concentration respectively. The characterizations of the activated carbon prepared from the residues were investigated by the SEM, XRD and N2 adsorption. The adsorption experiments show that it can better decolorize diosgenin wastewater and remove COD than commercial activated carbon. Therefore, the activated carbon prepared from the residues not only solves the solid waste pollution but also develops an effective and excellent low-cost adsorbent.
出处
《煤炭转化》
CAS
CSCD
北大核心
2005年第3期50-54,共5页
Coal Conversion
基金
国家"863"科技攻关项目(2004AA01050)
湖北省重点科技攻关项目(200408).
关键词
黄姜
纤维渣
活性炭
ZNCL2
discorea zingiberensis, cellulose residue, activated carbon, ZnCl2
