中国资源综合利用2023，Vol.41Issue(12)：16-21,6.DOI:10.3969/j.issn.1008-9500.2023.12.005
不同改性玉米芯作为反硝化固体碳源的比选
Comparative Selection of Different Modified Corncobs as Solid Carbon Sources for Denitrification
摘要
Abstract
In order to solve the problem of insufficient carbon source for denitrification and the drawbacks of adding liquid carbon source in low carbon-nitrogen ratio sewage,the experiment uses 1.5%NaOH,O3,1.5%NaOH+O3,O3+1.5%NaOH to modify natural cellulose material corncobs,respectively,thus investigating the static release characteristics and static denitrification performance of modified corncob as a solid carbon source for denitrification.The results show that the 1.5%NaOH+O3 modified corncob leaching solution has the highest cumulative total organic carbon(TOC)release concentration in 15 d,reaching 425 mg/L,and the continuous carbon release ability is the strongest,without generating secondary pollution;when it is used as a solid carbon source for denitrification,the nitrate removal rate is as high as 98%within 4～50 d,and there is no accumulation of nitrite,and the effluent pH is also stable at 7.6.Therefore,1.5%NaOH+O3 modification is the best modification way to improve the performance of corncob as a solid carbon source for denitrification.关键词
改性处理/玉米芯/固体碳源/释碳/反硝化脱氮Key words
modification/corncobs/solid carbon source/carbon release/denitrification分类
资源环境引用本文复制引用
耿雅雯,王玲玲,王浩然,王雪艳..不同改性玉米芯作为反硝化固体碳源的比选[J].中国资源综合利用,2023,41(12):16-21,6.基金项目
徐州生物工程职业技术学院自然科学课题(XSZR202103) （XSZR202103）
徐州市基础研究计划-面上项目(KC22060). （KC22060）
