农业现代化研究2016，Vol.37Issue(2)：381-386,6.DOI:10.13872/j.1000-0275.2016.0022
广西蔗渣炭和玉米秸秆炭对水体中铵氮的吸附性能与比较
Characteristics of the ammonium nitrogen adsorbed by biochars:Bagasse and maize straw
摘要
Abstract
In order to maximally utilize the abundant agriculture organic wastes (bagassein) and to maximize the efficiency of resources and environment in Guangxi Province, an oscillation adsorption experiment under constant temperature was conducted to study the characteristics of the ammonium nitrogen adsorbed by biochars:bagasse and maize straw. The effects of adsorption time, initial concentration of ammonium nitrogen, the amount of biochar added on the adsorption of ammonium nitrogen were analyzed. Results showed that the times of equilibrium adsorption for both biochar derived from bagasse and maize straw were 3 hours, and their equilibrium adsorption rates were 39.0%and 41.3%respectively. The adsorption rate was increased with the increasing rate of bagasse biochar added, but the adsorption amount per gram biochar was decreased. The adsorption processes conformed to Langmuir and Freundlich equations. The maximum adsorption capacities were 2.50 mg/g and 2.88 mg/g for biochars of bagasse and maize straw, respectively. Overall, the maize straw biochar had better capacity to adsorb ammonium nitrogen than bagasse biochar.关键词
蔗渣/玉米秸秆/生物质炭/铵氮/吸附Key words
bagasse/maize straw/biochar/ammonium nitrogen/adsorption分类
资源环境引用本文复制引用
肖和友,黎蕾,陈香碧,郑小东,苏以荣..广西蔗渣炭和玉米秸秆炭对水体中铵氮的吸附性能与比较[J].农业现代化研究,2016,37(2):381-386,6.基金项目
国家科技支撑计划项目（2012BAD05B03-6）；中国科学院西部之光人才培养计划“西部博士资助项目”。@@@@National Science and Technology Support Program of China (2012BAD05B03-6) （2012BAD05B03-6）
The Western Doctor Program of Talent Training Plan from Western Light Program of Chinese Academy of Science （）
