摘要
以河北裕丰京安养殖有限公司2 MW沼气发电项目为例,介绍了浓稀分流-重点增温厌氧发酵工艺在低浓度猪粪污沼气工程中的应用,并对运行数据进行连续3个月的监测和分析。运行数据表明,采用浓稀分流-重点增温厌氧发酵工艺,猪粪原料(TS浓度1.8%)的产气率可达10.8 m^3/t;与传统发酵模式相比,容积产气率提升了50%,同时节省了41%的增温能耗。项目运行情况表明,浓稀分流-重点增温厌氧发酵工艺可以有效改善低浓度猪粪污水厌氧发酵项目的运行效率和经济效益。
Taking Hebei Yufeng Jing’an 2 MW power generation biogas project as an example,this paper introduced the application of gravitational settling-selective heating(GS-SH)anaerobic digestion(AD)process in biogas engineering.The operating parameters were detected and analyzed,including COD concentration,total solid(TS)content,biogas production rate,etc.The analysis showed that the biogas production rate of the swine slurry(TS concentration 1.8%)could reach 10.8 m^3/t.Compared with the traditional digestion process,the GS-SH mode herein could increase 50% of the digester volume biogas yield,and save 41%heat demanding of anaerobic digestion.It was demonstrated that the GS-SH AD process could effectively improve the operation efficiency and economic benefit of large scale swine slurry treatment biogas projects.
作者
谭婧
宋波
TAN Jing;SONG Bo(Hangzhou Energy&Environmental Engineering Co.,Ltd.,Hangzhou,Zhejiang 310020)
出处
《安徽农业科学》
CAS
2020年第5期211-214,共4页
Journal of Anhui Agricultural Sciences
关键词
浓稀分流
重点增温
猪粪
沼气工程
Gravitational settling
Selective heating
Swine manure
Biogas project
