发酵原料混合比例对高固含量厌氧发酵的影响
分别按餐厨废弃物、牛粪和秸秆挥发性固体(VS)比例为0:2:1、0.4:1.6:1、0.8:1.2:1、1.2:0.8:1、1.6:0.4:1、2:0:1混合形成6个试验组,各组总固体浓度(TS)均为17%,在中温(35±1)℃条件下进行厌氧发酵试验,试验进行48 d。结果表明,物料混合比例对消化效果有显著影响,VS比例为0.4:1.6:1时产气效果最佳,最高容积产气率为989 mL·L^-1·d^-1,产气稳定后甲烷平均含量为55.6%。随着餐厨比例增加,系统稳定性变差,当VS比例为1.2:0.8:1时,反应器中有丙酸抑制现象。当VS比例为1.6:0.4:1和2:0:1时发生酸败。...
        Saved in:
      
    
          | Published in | 东北农业大学学报 Vol. 45; no. 11; pp. 101 - 107 | 
|---|---|
| Main Author | |
| Format | Journal Article | 
| Language | Chinese | 
| Published | 
            东北农业大学工程学院,哈尔滨,150030%哈尔滨工业大学市政环境工程学院,哈尔滨,150090
    
        2014
     | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 1005-9369 | 
Cover
| Summary: | 分别按餐厨废弃物、牛粪和秸秆挥发性固体(VS)比例为0:2:1、0.4:1.6:1、0.8:1.2:1、1.2:0.8:1、1.6:0.4:1、2:0:1混合形成6个试验组,各组总固体浓度(TS)均为17%,在中温(35±1)℃条件下进行厌氧发酵试验,试验进行48 d。结果表明,物料混合比例对消化效果有显著影响,VS比例为0.4:1.6:1时产气效果最佳,最高容积产气率为989 mL·L^-1·d^-1,产气稳定后甲烷平均含量为55.6%。随着餐厨比例增加,系统稳定性变差,当VS比例为1.2:0.8:1时,反应器中有丙酸抑制现象。当VS比例为1.6:0.4:1和2:0:1时发生酸败。 | 
|---|---|
| Bibliography: | 23-1391/S LI Jingyu, LI Wenzhe, ZHANG Yingwei, LV Jinqing, LIU Bingfeng (1. School of Engineering, Northeast Agricultural University, Harbin 150030, China; 2. School of Munici- pal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China) mixing ratios;kitchen wastes;maize straw;high-concentration anaerobic fermentation The mixing ratioes of kitchen waste, cattle manure and maize straw VS ratio were 0:2:1, 0.4:1.6:1, 0.8:1.2:1, 1.2:0.8:1, 1.6:0.4:1 and 2:0:1. The test lasted 48 d which TS was 17%in (35±1)℃. The largest volumetric gas production rate was 989 mL·L^-1·d^-1, and the average content of methane was 55.6%. According to the stability of the system, gas production rate and the methane production rate, the optimal ratio of kitchen waste, cattle manure and maize straw which was 0.4:1.6:1 was determined. The greater the proportion of kitchenware, the worse the stability of the system. When the kitchen waste, cattle manure and maize straw VS ratio was 1.2:0.8:1, the phenomenon of p  | 
| ISSN: | 1005-9369 |