微波和紫外改性生物炭对化肥的吸附性能的影响研究
Study on the Adsorption Performance of Microwave and UV Modified Biochar on Fertilizers
张玲玉 1解海卫 1张艳 1崔浩然1
作者信息
- 1. 天津商业大学机械工程学院, 天津 300134
- 折叠
摘要
本文以玉米秸秆为原料,高温热解制备生物炭,采用微波加热和紫外辐照两种方式对生物炭进行改性,研究其对化肥的吸附性能.结果表明,玉米秸秆生物炭经过两种方式改性后的吸附性能均有提升,最大吸附量分别由21 mg/g提升至27.5 mg/g和29.8 mg/g,其中紫外改性对提高生物炭的吸附性能效果更加显著.该生物炭吸附化肥的过程存在两种吸附过程,其中主要为化学吸附.
Abstract
In this paper,biochar was prepared by pyrolysis of corn straw,and modified by microwave heating and ultraviolet irradiation,and its adsorption properties to fertilizer were studied.The results showed that the adsorption capacity of corn stalk biochar modified by two methods was improved,and the maximum adsorption capacity was increased from 21 mg/g to 27.5 mg/g and 29.8 mg/g,respectively,among them,the effect of ultraviolet modification on the adsorption of biochar is more significant.There are two adsorption processes in the process of the biochar adsorbing fertilizer,and the main one is chemical adsorption.
关键词
玉米秸秆/生物炭/改性/吸附/化肥Key words
corn stover/biochar/modification/adsorption/chemical fertilizer引用本文复制引用
基金项目
天津市研究生科技创新项目(2022SKY328)
出版年
2024
NETL
NSTL
万方数据