作 者:
刘齐;董晓莹;车振宇;曹焱鑫;邵丽杰;武崇辉;寇巍
单 位:
辽宁省能源研究所;营口市环境保护科学研究所
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。
译 名:
Properties of Waste Vegetable Juice and Its Hydrolytic Acidification
作 者:
LIU Qi;DONG Xiao-ying;CHE Zhen-yu;CAO Yan-xin;SHAO Li-jie;WU Chong-hui;KOU Wei;Liaoning Institute of Energy Resource;Yingkou Environmental Protection Science Research Institute;
关键词:
vegetable waste;;hydrolytic;;acidification;;ammonia nitrogen
摘 要:
In this paper,the hydrolytic acidification of waste vegetable juice was processed under 25℃,30℃,35℃ and40℃ after the property determination. The variation patterns of pH,ORP,VFAs,COD,ammonia nitrogen were analysed.The results showed that the VFAs was produced the fastest at 35℃,which reached 5087mg·L-1on the 3rd day; the pH decreased from 5. 82 to 3. 73 on the 2nd day; and the NH+4-N content didn't show an inhibitory or toxic effect on fermentation for all the 4 temperature levels.