碱性微波预处理对猪粪厌氧消化和沼气产量的影响。
Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure.
机构信息
Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, P. R. China.
School of Civil and Building Engineering, Loughborough University, Loughborough, Leicestershire, LE11 3TU, United Kingdom.
出版信息
Sci Rep. 2017 May 10;7(1):1668. doi: 10.1038/s41598-017-01706-3.
Microwave assisted with alkaline (MW-A) condition was applied in the pretreatment of swine manure, and the effect of the pretreatment on anaerobic treatment and biogas production was evaluated in this study. The two main microwaving (MW) parameters, microwaving power and reaction time, were optimized for the pretreatment. Response surface methodology (RSM) was used to investigate the effect of alkaline microwaving process for manure pretreatment at various values of pH and energy input. Results showed that the manure disintegration degree was maximized of 63.91% at energy input of 54 J/g and pH of 12.0, and variance analysis indicated that pH value played a more important role in the pretreatment than in energy input. Anaerobic digestion results demonstrated that MW-A pretreatment not only significantly increased cumulative biogas production, but also shortened the duration for a stable biogas production rate. Therefore, the alkaline microwaving pretreatment could become an alternative process for effective treatment of swine manure.
微波辅助碱性（MW-A）条件被应用于猪粪的预处理中，本研究评估了预处理对厌氧处理和沼气生产的影响。优化了两个主要的微波（MW）参数，即微波功率和反应时间，用于预处理。响应面法（RSM）用于研究在不同 pH 值和能量输入下的碱性微波处理对粪便预处理的影响。结果表明，在能量输入为 54 J/g 和 pH 值为 12.0 的条件下，粪便的分解程度最大，达到 63.91%，方差分析表明，pH 值在预处理中比在能量输入中发挥更重要的作用。厌氧消化结果表明，MW-A 预处理不仅显著增加了累积沼气产量，而且缩短了稳定沼气产量的时间。因此，碱性微波预处理可以成为一种有效的猪粪处理替代工艺。
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