不同生物预处理对玉米秸秆厌氧发酵产气特性的影响
秸秆产气率低是其作为沼气生产原料的制约因素，采用生物预处理秸秆可解决这一问题。试验选用沼液为预处理菌剂，与微生物催腐剂、腐秆剂、复合菌剂、糖酵酶4种生物菌剂进行比较，并以清水处理作为对照，对玉米秸秆进行生物预处理，然后进行厌氧发酵，研究不同生物预处理对玉米秸秆生产沼气的影响。结果表明，沼液预处理的玉米秸秆产气效果最佳，单位挥发性固体（VS）产气量为227．67mL·g^-1，比其他处理方法高5．01％-81．2％，糖酵酶预处理产气效果最差，VS产气量最低，仅为125．64mL·g^-1。研究表明，沼液预处理后的玉米秸秆碱度较高，发酵液缓冲能力较强，pH适中，能有效促进VFA分解，使玉米秸秆产气...
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| Published in | 东北农业大学学报 Vol. 45; no. 4; pp. 118 - 122 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
新乡学院生命科学与技术系,河南 新乡,453000%新乡学院化学与化工学院,河南 新乡,453000%西北农林科技大学农学院,陕西 杨凌,712100
2014
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| Subjects | |
| Online Access | Get full text |
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| Abstract | 秸秆产气率低是其作为沼气生产原料的制约因素，采用生物预处理秸秆可解决这一问题。试验选用沼液为预处理菌剂，与微生物催腐剂、腐秆剂、复合菌剂、糖酵酶4种生物菌剂进行比较，并以清水处理作为对照，对玉米秸秆进行生物预处理，然后进行厌氧发酵，研究不同生物预处理对玉米秸秆生产沼气的影响。结果表明，沼液预处理的玉米秸秆产气效果最佳，单位挥发性固体（VS）产气量为227．67mL·g^-1，比其他处理方法高5．01％-81．2％，糖酵酶预处理产气效果最差，VS产气量最低，仅为125．64mL·g^-1。研究表明，沼液预处理后的玉米秸秆碱度较高，发酵液缓冲能力较强，pH适中，能有效促进VFA分解，使玉米秸秆产气量提高。因此，沼液预处理是提高秸秆产气率的一种有效手段。 |
|---|---|
| AbstractList | 秸秆产气率低是其作为沼气生产原料的制约因素，采用生物预处理秸秆可解决这一问题。试验选用沼液为预处理菌剂，与微生物催腐剂、腐秆剂、复合菌剂、糖酵酶4种生物菌剂进行比较，并以清水处理作为对照，对玉米秸秆进行生物预处理，然后进行厌氧发酵，研究不同生物预处理对玉米秸秆生产沼气的影响。结果表明，沼液预处理的玉米秸秆产气效果最佳，单位挥发性固体（VS）产气量为227．67mL·g^-1，比其他处理方法高5．01％-81．2％，糖酵酶预处理产气效果最差，VS产气量最低，仅为125．64mL·g^-1。研究表明，沼液预处理后的玉米秸秆碱度较高，发酵液缓冲能力较强，pH适中，能有效促进VFA分解，使玉米秸秆产气量提高。因此，沼液预处理是提高秸秆产气率的一种有效手段。 S216.4%X705; 秸秆产气率低是其作为沼气生产原料的制约因素，采用生物预处理秸秆可解决这一问题。试验选用沼液为预处理菌剂，与微生物催腐剂、腐秆剂、复合菌剂、糖酵酶4种生物菌剂进行比较，并以清水处理作为对照，对玉米秸秆进行生物预处理，然后进行厌氧发酵，研究不同生物预处理对玉米秸秆生产沼气的影响。结果表明，沼液预处理的玉米秸秆产气效果最佳，单位挥发性固体（VS）产气量为227.67 mL·g-1，比其他处理方法高5.01%~81.2%，糖酵酶预处理产气效果最差，VS产气量最低，仅为125.64 mL·g-1。研究表明，沼液预处理后的玉米秸秆碱度较高，发酵液缓冲能力较强，pH适中，能有效促进VFA分解，使玉米秸秆产气量提高。因此，沼液预处理是提高秸秆产气率的一种有效手段。 |
| Abstract_FL | Slow decomposition and low rate of biogas production are constraints that using straw as anaerobic fermentation materials, biopretreatment can accelerate straw decomposition and increase biogas production rate. Biogas slurry was used to pretreatment corn stalk, compared with Microbe Decomposition Agents, Easy Composting Agent, complex microbial agent, sugar fermentation enzyme, and water treatment was used as control, anaerobic digestibility and biogas yield of corn stalk were evaluated by anaerobic batch digestion experiments. The results showed that, pretreatment of biogas slurry was better, the cumulative biogas production of 227.67 mL·g-1 VS was obtained after 43 days of digestion, increased by 5.01%-81.2%as compared to other pretreatment methods. The cumulative biogas production of sugar fermentation enzyme was 125.64 mL·g-1 VS, which was the lowest among al pretreatment's. In addition, the total alkalinity of biogas slurry treatment was the highest, and had strong buffer capacity, VFA decomposition was fast, which led the highest biogas production. Biogas slurry pretreatment had a significant effect on increasing biogas production rate of straw. |
| Author | 楚莉莉 田孝鑫 杨改河 |
| AuthorAffiliation | 新乡学院生命科学与技术系,河南新乡453000 新乡学院化学与化工学院,河南新乡453000 西北农林科技大学农学院,陕西杨凌712100 |
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| Author_FL | CHU Lili TIAN Xiaoxin YANG Gaihe |
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| DocumentTitleAlternate | Effect of biopretreatment on biogas production characteristics of anaerobic fermentation of corn stalk |
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| EndPage | 122 |
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| Keywords | 生物预处理 biopretreatment 沼气 厌氧消化 biogas corn stalk anaerobic digestion 玉米秸秆 |
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| Notes | 23-1391/S Slow decomposition and low rate of biogas production are constraints that using straw as anaerobic fermentation materials, biopretreatment can accelerate straw decomposition and increase biogas production rate. Biogas slurry was used to pretreatment corn stalk, compared with Microbe Decomposition Agents, Easy Composting Agent, complex microbial agent, sugar fermentation enzyme, and water treatment was used as control, anaerobic digestibility and biogas yield of corn stalk were evaluated by anaerobic batch digestion experiments. The results showed that, pretreatment of biogas slurry was better, the cumulative biogas production of 227.67 mL. g-1 VS was obtained after 43 days of digestion, increased by 6.01%-81.2% as compared to other pretreatment methods. The cumulative biogas production of sugar fermentation enzyme was 125.64 mL· g^-1 VS, which was the lowest among all pretreatment＇s. In addition, the total alkalinity of biogas slurry treatment was the highest, and had strong buffer capacity, VFA deco |
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| SubjectTerms | 厌氧消化 沼气 玉米秸秆 生物预处理 |
| Title | 不同生物预处理对玉米秸秆厌氧发酵产气特性的影响 |
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