城市生物质废物中温单级厌氧消化中试研究  

Pilot-scale research of one-stage mesophilic anaerobic digestion of municipal biomass waste

作　　者：刘晓[1,2] 王伟[2] 沈人杰[3] 

机构地区：[1]中国城市建设研究院,北京100120 [2]清华大学环境学院,北京100084 [3]北京科技大学土木与环境学院,北京100083

出　　处：《环境工程学报》2013年第8期3143-3147,共5页Chinese Journal of Environmental Engineering

基　　金：国家高技术研究发展计划(863)项目(2008AA062401);科技部国际科技合作与交流项目(2010DFA22770);国家科技支撑计划(2012BAC15B02)

摘　　要：建立了城市生物质废物中温单级厌氧消化中试反应器,对城市生物质废物厌氧消化过程系统稳定性、产甲烷性能及有机物的去除效果进行解析。反应器稳定运行410 d,共经历2.4、3.6、4.8、6.0 kg VS/(m3·d)4个负荷,反应器pH稳定在7.2～7.6之间,有机酸浓度<500 mg/L。在负荷6.0 kg VS/(m3·d)时反应器平均容积产气率4.25 m3/(m3·d),有机物去除率为63.2%;另外,实验结果表明,厌氧消化过程对蛋白质、脂肪、纤维素及多糖类物质的去除效果有明显差异,其中脂肪类物质去除率为98.2%,产沼气贡献率为38.8%。实现了针对我国城市生物质废物的高负荷高效厌氧消化,为我国城市生物质废物厌氧消化规模化处理提供了基础数据。A pilot-scale one-stage mesophilic anaerobic digestion research is presented to elucidate the feasibility of developing anaerobic digestion as an effective disposal method for municipal biomass waste（MBW） in China,focusing on performance stability,biogas production and organic reduction.The reactor was operated stably for 410 d with an organic loading rate increase from 2.4 to 6.0 kg VS/（m3·d）.A high biogas production rate of 4.25 m3/（m3·d） and a high organic reduction rate of 63.2% were achieved at organic loading rate of 6.0 kg VS/（m3·d）.Protein,fat,cellulose and polysaccharide showed different reduction rates during anaerobic digestion,while fat can achieve 98.2% removal which is responsible for 38.8% of biogas production.The research achieved the stable operation under high OLR and high conversion rate which is of crucial importance to the development of large-scale treatment projects of municipal biomass waste in China.

关 键 词：固体废弃物处理处置 城市生物质废物 厌氧消化 中试研究 有机负荷 有机物去除率 

分 类 号：X172[环境科学与工程—环境科学]