Anaerobic co-digestion of garbage leachate from municipal solid waste incinerator and straw at medium temperature
The feasibility of the anaerobic co-digestion of straw and garbage leachate from incinerator was verified by the following experiment.1 L garbage leachate from municipal solid waste incinerator with 37.56 g straw (broken into 1 ～2 cm,organic load of 30 gVS/L) fermented under anaerobic condition of medium temperature (35 ℃).The results show that the garbage leachate with pH value of 5.0 and the straw without chemical and biological treatments could be anaerobic co-digested.The cumulative gas production amounted to 43 749 mL in 141 days,and the maximum daily biogas yield was 2 590 mL.The methane content was over 50％ and the highest reached 70.89％.The COD of the fresh leachate sample was 70 472 mg/L; the COD of the system was 83 896 mg/L when the gas production began,then decreased to 14 245 mg/L after the processes,about 83.02 percentage of the total CODwas removed.By combining the conversion and utilization of the straw fiber with the anaerobic digestion of the leachate,we can achieve the aim of using waste to control waste,which obviously having some enlightening effects on finding new green energy.
国家科技期刊平台
NSTL
万方数据
维普
