紫茎泽兰厌氧发酵液COD浓度变化的实验研究  

The Research on COD Concentration Change in Eupatorium Adenophorum Spreng Anaerobic Fermentation Liquid

作　　者：董继宗[1] 柳静[1] 杨红[1] 王昌梅[1] 尹芳[1] 张无敌[1] DONG Jizong;LIU Jing;YANG Hong;WANG Changmei;YING Fang;ZHANG Wudi(Yunnan Normal Univercity,Kunming,Yunnan 650500)

机构地区：[1]云南师范大学,云南昆明650500

出　　处：《热带农业工程》2022年第3期124-126,共3页Tropical Agricultural Engineering

基　　金：云南师范大学博士科研创新基金(No.YJSJJ21-A06);云南省教育厅科学研究基金(No.218JS146)。

摘　　要：为研究紫茎泽兰厌氧发酵中COD浓度变化情况,将紫茎泽兰作为发酵原料,以实验室长期驯化的活性污泥为接种物,采用实验室自制的沼气批量发酵装置,进行紫茎泽兰厌氧发酵产气实验,测定产气情况和COD浓度变化情况。结果发现:发酵周期60 d,总产气773.5 mL,原料产气率为38.68 mL/g,COD的最终降解率为39.65%,COD浓度的变化率跟紫金泽兰发酵产气量成正相关性。This paper studies COD concentration in anaerobic fermentation system using batch fermentation process, Adenophorum Spreng as fermenting material and activated sludge as inoculant. The results prove that total gas consumption is 773.5 ml, raw material gas production rate is 38.68 mL/g and degradation rate of COD is 39.65% during a 60-day fermentation cycle. COD concentration is positively correlated with fermentation gas production.

关 键 词：紫茎泽兰 厌氧发酵 COD降解率 

分 类 号：S216.4[农业科学—农业机械化工程]