上海第二工业大学学报
上海第二工業大學學報
상해제이공업대학학보
JOURNAL OF SHANGHAI SECOND POLYTECHNIC UNIVERSITY
2013年
1期
25-30
,共6页
田震%李奕怀%沈娇雯%许中平%邴乃慈
田震%李奕懷%瀋嬌雯%許中平%邴迺慈
전진%리혁부%침교문%허중평%병내자
天然沸石%氨氮%吸附等温线%pH值%吸附量
天然沸石%氨氮%吸附等溫線%pH值%吸附量
천연비석%안담%흡부등온선%pH치%흡부량
nature zeolite%ammonia-nitrogen%adsorption isotherm%pH valve%adsorption amount
研究了天然斜发沸石对废水中氨氮的吸附行为,比较了pH值、温度、氨氮浓度等条件对吸附性能的影响.对沸石的吸附等温线用Langmuir和Freundlich模型分析拟合表明,其吸附等温线更符合Langmuir模型;不同pH环境和不同温度下氨氮的吸附量比较表明,适宜的pH值和较低的温度有利于沸石具有较高的吸附量,在温度低于30℃、pH在4~8的范围内,沸石的吸附性量可达2 mg·g-1以上.
研究瞭天然斜髮沸石對廢水中氨氮的吸附行為,比較瞭pH值、溫度、氨氮濃度等條件對吸附性能的影響.對沸石的吸附等溫線用Langmuir和Freundlich模型分析擬閤錶明,其吸附等溫線更符閤Langmuir模型;不同pH環境和不同溫度下氨氮的吸附量比較錶明,適宜的pH值和較低的溫度有利于沸石具有較高的吸附量,在溫度低于30℃、pH在4~8的範圍內,沸石的吸附性量可達2 mg·g-1以上.
연구료천연사발비석대폐수중안담적흡부행위,비교료pH치、온도、안담농도등조건대흡부성능적영향.대비석적흡부등온선용Langmuir화Freundlich모형분석의합표명,기흡부등온선경부합Langmuir모형;불동pH배경화불동온도하안담적흡부량비교표명,괄의적pH치화교저적온도유리우비석구유교고적흡부량,재온도저우30℃、pH재4~8적범위내,비석적흡부성량가체2 mg·g-1이상.
@@@@The ammonin-nitrogen adsorption on natural clinoptilolite zeolite was investigated, and the adsorption properties at different condition were compared. The adsorption isothermal curve was analyzed according to the Langmuir and Freundlich models. The result showed that the ammonia-nitrogen adsorption on natural clinoptilolite is more suitable to the Langmuir model. The results at different pH value and different temperature indicated that they also have significant influence on the adsorption amount of the zeolite, when the pH value is between 4~8, the adsorption capacity is higher than 2 mg·g-1.
