Research on Effect of Lipid and NH4+-N for Anaerobic Digestion of Food Waste
Oleic acid and NH4+-N are the main metabolite of lipid and protein in the process for anaerobic digestion of food waste (FW).(1) In accordance with the study on inhibition experiment of oleic acid,while the concentration of oleic acid was above 6.0 g·L-1,the number of methanogens decreased,the metabolic rate of acetic acid slowed down and the yield ofbiogas declined as well.(2) As the result of NH4+-N experiment,the maximum concentration of NH4+-N that the anaerobic digestion system could tolerate was 4,578mg·L-1.(3) In the experiment of mesophilic anaerobic digestion (35℃),controlling the content for lipid and NH4+-N,the continuous stirred tank reactor (CSTR) was running smoothly for 200 days,the maximum biogas yield of FW was 1.1 m3·kg-1VS·d-1 and the maximum biogas yield by reactor volume was 4.43 m3·m-3·d-1.
Food Waste Anaerobic Digestion Lipid Ammonia Nitrogen Inhibition
Wang Xing Li Qiang Yin Xiaobo Li Zhengwei Wu Libin Zhang Min Deng Yayue
Biogas Institute of Ministry of Agriculture, Chengdu, No.13,4th Section, Peoples Republic of China; Biogas Institute of Ministry of Agriculture, Chengdu, No.13,4th Section, Peoples Republic of China
国际会议
The 15th IWA World Conference on Anaerobic Digestion( 第15届IWA世界厌氧大会)
北京
英文
393-396
2017-10-17（万方平台首次上网日期，不代表论文的发表时间）