CAJ | 학술논문

为减少秸秆预处理过程中NaOH的使用量，降低其环境影响，提高秸秆厌氧发酵产气量。采用NaOH和绿氧（GO）对小麦秸秆进行联合预处理，研究低温（15℃）、中温（35℃）、高温（55℃）三个温度下0.05％的绿氧（GO）和不同浓度NaOH组合预处理对秸秆成分、厌氧消化性能的影响。试验结果表明，15℃、35℃、55℃下，最佳的预处理组合分别为0.05％GO+3％NaOH、0.05％GO+2％NaOH、0.05％GO+2％NaOH，与对应温度下未经预处理组的效果相比，累积甲烷产气量分别提高了86％、93％、87％。并得到35℃、55℃下NaOH浓度和累积甲烷产量的显著性回归方程。NaOH和GO联合试剂预处理秸秆对秸秆厌氧发酵产沼气有显著的促进作用。
위감소갈간예처리과정중NaOH적사용량，강저기배경영향，제고갈간염양발효산기량。채용NaOH화록양（GO）대소맥갈간진행연합예처리，연구저온（15℃）、중온（35℃）、고온（55℃）삼개온도하0.05％적록양（GO）화불동농도NaOH조합예처리대갈간성분、염양소화성능적영향。시험결과표명，15℃、35℃、55℃하，최가적예처리조합분별위0.05％GO+3％NaOH、0.05％GO+2％NaOH、0.05％GO+2％NaOH，여대응온도하미경예처리조적효과상비，루적갑완산기량분별제고료86％、93％、87％。병득도35℃、55℃하NaOH농도화루적갑완산량적현저성회귀방정。NaOH화GO연합시제예처리갈간대갈간염양발효산소기유현저적촉진작용。
Increasing gas production during straw digestion and reducing the environmental pollution are interesting to both agricultural waste utilization and environmental protection. Here we examined anaerobic digestion performance of wheat straw pretreated by combined 0.05%of Green Oxygen(GO)and different concentrations of NaOH at 3 temperatures, e.g. low temperature(15℃), medium temperature (35℃)and high temperature(55℃). The best pretreatment combinations were found to be 0.05%GO+3%NaOH(A3), 0.05%GO+2%NaOH(B2), and 0.05%GO+2%NaOH(C2)at 15℃, 35℃and 55℃, respectively. Compared with the control(no pretreatment), cumula-tive methane gas production increased by 86%, 93% and 87% for 0.05% GO+3% NaOH at 15 ℃, 0.05% GO+2% NaOH at 35 ℃, and 0.05%GO+2%NaOH at 55℃, respectively. A significant regression relationship was found between cumulative methane production and NaOH concentration at 35℃and 55℃. The scanning electron microscopy showed different degrees of destroy in the structure of cellulose after pretreatments. The structure of cellulose showed separation in thermophilic treatment. Therefore, pretreatments with NaOH-Green Oxygen have significantly stimulated the gas production of wheat straw during anaerobic digestion.