热水解+厌氧消化处理市政污泥示范工程
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摘要
某市政污泥处理示范工程处理规模为5 t/d,采用热水解+厌氧消化工艺。近一年的稳定运行表明,厌氧消化过程的甲烷产量约6 m~3/d,甲烷最高产率可达353 L/kgVS,污泥中有机质降解率为29. 68%,TOC降解率为21. 7%,能较好地实现污泥的稳定化与资源化。
A demonstration project of municipal sludge treatment with scale of 5 t/d was built using thermal hydrolysis and anaerobic digestion process. About one year 's steady operation of the project showed that the methane production in anaerobic digestion process was about 6 m~3/d,the maximum methane yield could reach 353 L/kgVS,the degradation rate of VS/TS in sludge was 29. 68%,and the reduction rate of TOC was 21. 7%. It indicated that this technology efficiently had realized the stabilization and resource utilization of the sludge.
A demonstration project of municipal sludge treatment with scale of 5 t/d was built using thermal hydrolysis and anaerobic digestion process. About one year 's steady operation of the project showed that the methane production in anaerobic digestion process was about 6 m~3/d,the maximum methane yield could reach 353 L/kgVS,the degradation rate of VS/TS in sludge was 29. 68%,and the reduction rate of TOC was 21. 7%. It indicated that this technology efficiently had realized the stabilization and resource utilization of the sludge.
引文
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[3]Hejnfelt A,Angelidaki I.Anaerobic digestion of slaughterhouse by-products[J].Biomass Bioenerg,2009,33(8):1046-1054.
[4]王玉兰,余传戴,林鸿,等.低有机质污泥高温热处理对高温厌氧消化性能的影响[J].福建师范大学学报:自然科学版,2018,34(3):64-70.Wang Yulan,Yu Chuandai,Lin Hong,et al.The effect of low organic content sludge high-temperature thermal hydrolysis on thermophilic anaerobic digestion[J].Journal of Fujian Normal University:Natural Science Edition,2018,34(3):64-70(in Chinese).
[5]王火根,李娜.沼气工程企业效益分析及政策建议[J].可再生能源,2018,36(6):25-33.Wang Huogen,Li Na.Benefit analysis and policy recommendations based on biogas engineering[J].Renewable Energy Resources,2018,36(6):25-33(in Chinese).