摘要
文章针对蔬菜垃圾汁液性质分析后进行水解酸化实验,分别考查25℃,30℃,35℃,40℃温度条件下,pH值,氧化还原电位(ORP)、挥发性脂肪酸(VFAs)、化学需氧量(COD)、氨氮(NH+4-N)等指标变化规律。结果表明,35℃条件下VFAs增长较快,VFA总量在第2日达到3434 mg·L-1,pH值在第1日下降至3.73,氨氮在4个温度条件下都未达到对发酵过程抑制或毒性水平。
In this paper,the hydrolytic acidification of waste vegetable juice was processed under 25℃,30℃,35℃and 40℃after the property determination.The variation patterns of pH,ORP,VFAs,COD,ammonia nitrogen were analysed.The restdts showed that the VFAs was produced the fastest at 35℃,which reached 5087mg·L^-1 on the 3rd day;the pH decreased from 5.82 to 3.73 on the 2nd day;and the NH~-N content didn't show an inhibitory or toxic effect on fermentation for all the 4 temperature levels.
作者
刘齐
董晓莹
车振宇
曹焱鑫
邵丽杰
武崇辉
寇巍
LIU QI;DONG xiao-ying;CHE Zheny-yu;CAO Yan-xin;SHAO LI-jie;WU Chong-hui;KOU Wei(Liaoning Institute of Energy Resource,Yingkou 115003,China;Yingkon Environmental Protection Science Research Institute,Yingkou 115002,China)
出处
《中国沼气》
北大核心
2014年第5期46-49,共4页
China Biogas
基金
"十二五"国家科技支撑计划课题(2012BAC25B07)
关键词
蔬菜垃圾
水解
酸化
氨氮
vegetable waste
hydrolytic
acidification
ammonia nitrogen
作者简介
刘齐(1983-),男,助理研究员。研究方向为沼气厌氧发酵技术,E-mail:306467810@qq.com;通讯作者:寇巍,E-mail:kouwei@126.com
