详细信息
文献类型:期刊文献
中文题名:腐植酸的选择性降解及其分子量测定研究
英文题名:Research on the Selective Degradation and Molecular Weight of Humic Acid
作者:樊兴明[1];张义超[1];张钊[1];周霞萍[1]
机构:[1]华东理工大学资源与环境工程学院,上海200237
年份:2011
期号:1
起止页码:20
中文期刊名:腐植酸
外文期刊名:Humic Acid
语种:中文
中文关键词:腐植酸;黄腐酸;选择性降解;修正;冰点下降法;分子量测定
外文关键词:humic acid; fulvic acid; selective degradation; modification; cryoscopic method; molecular weight determination;
摘要:天然腐植酸资源丰富,腐植酸的选择性氧化降解及合成研究涉及的机理复杂、应用领域宽。通过超声活化、化学氧化、生物降解等方法对原料煤进行预处理,有效地提高了原料煤中腐植酸和黄腐酸的含量,其中生物降解褐煤、风化煤9~30d,棕、黑腐酸含量增加到302.6%,黄腐酸含量增加到393.99%;并通过对冰点下降常数的修正,建立了适合黄腐酸的分子量测定方法,修正后的冰点下降常数Kf=3.94kg·K·mol-1。
Humic acid is rich in natural resources.It is complex in mechanism and wide in application to do research on selectively oxidation and synthesis of humic acid.Content of humic acid and fulvic acid in raw coal was effectively raised by such pre-processing as ultrasonic activation,biological degradation activation in my study.Content of lignite fulvic acid was increased by 393.99% after treatment of bacterium for 9~30 days with degradation rate of ulmic acid and humic acid up to 302.6%,and a new way of molecu...
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