安徽农业科学2024，Vol.52Issue(12)：75-79,5.DOI:10.3969/j.issn.0517-6611.2024.12.015
芦苇生物炭的制备及氨氮吸附特性研究
Preparation of Reed Biochar and Study on Its Ammonia Nitrogen Adsorption Characteristics
摘要
Abstract
In order to solve the problem of resource utilization of waste aquatic plants,the biochar prepared by aquatic plants can be better uti-lized when absorbing NH4+-N in water,this paper used wetland reed as raw material to burn reed biochar,and explored the physical character-istics of reed biochar,under different experimental conditions,the adsorption characteristics of reed biochar to NH4+-N were studied.The results showed that the surface of reed biochar was elongated,rough and uneven,many small particles were attached,and it had a porous structure.The adsorption kinetics study showed that 6 hours was the optimal time parameter for reed biochar to adsorb NH4+-N,and the adsorption process was more in line with the quasi second order fitting equation.The isotherm study showed that 25℃could better describe the isotherm adsorption process of NH4+-N by reed biochar,and the isotherm adsorption behavior of reed biochar on NH4+-N was more in line with the Freundlich e-quation.关键词
芦苇生物炭/氨氮/吸附特性/动力学/吸附等温线Key words
Reed biochar/Ammonia nitrogen/Adsorption characteristics/Kinetics/Adsorption isotherm分类
资源环境引用本文复制引用
夏苑,齐娅荣,钟艳霞..芦苇生物炭的制备及氨氮吸附特性研究[J].安徽农业科学,2024,52(12):75-79,5.基金项目
宁夏重点研发计划项目(2021BEG02010) （2021BEG02010）
国家自然科学基金项目(42277466,41561106). （42277466,41561106）
