智能型膜覆盖好氧堆肥反应器设计与试验
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教育部新世纪优秀人才支持计划项目(NCET—12—0524)和国家国际科技合作专项(2015DFA90370)


Design and Test on Lab-scale Intelligent Membrane-covered Aerobic Composting Reactor
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    摘要:

    设计了一种智能型膜覆盖好氧堆肥反应器试验系统,主要包括发酵系统、布气系统、覆膜系统和控制系统。依据热力学及相关原理,进行了各子系统和整体系统的优化设计。发酵系统采用圆柱形反应器,有效容积约90L;布气系统采用变频泵精确调速,可提供最大20L/min曝气量,曝气精度0.1L/min;覆膜系统选用具有选择渗透性的聚四氟乙烯材料Gore膜并与发酵系统良好密封;控制系统实现多点温度、氧体积分数、压力、气体监测以及经多元反馈实时调控通风供氧量。通过好氧堆肥性能试验并经物理、化学和生物学指标综合评价,结果表明:该膜覆盖好氧堆肥反应器试验系统具有良好的发酵效果,智能化程度高,可满足开展不同需求的膜覆盖好氧堆肥试验。

    Abstract:

    The technology of membrane-covered compost is a good choice to more efficiently, environmentally and cost-effectively solve the problem of agriculture wastes’ pollution. Researchers, company and government pay more attention to this new compost technology, while limited research can be only developed in composting plant. In order to develop membrane-covered compost test in laboratory, an lab-scale intelligent membrane-covered aerobic composting reactor test system was presented, including fermentation system, gas distribution system, membrane-covered system and control system. In accordance with the thermodynamics and relevant principles, the whole system and subsystem of the reactor were optimized. The reactor tank was cylindrical and volume of the tank was 90L. Aeration system can provide an accurate aeration with a frequency control fan, the maximum aeration rate was 20L/min and the aeration accuracy was 0.1L/min. A selected pervious membrane-covered system was designed which used PTFE as a core material compared with traditional aerobic composting reactor system. The membrane-covered system and fermentation system were connected by seats. A system of measurement and control was developed that can achieve temperature, oxygen concentration, pressure, aeration and gas real-time accurate monitoring and multivariate feedback control. The results of property test showed that the compost tests results were good according to main physical, chemical and biological indicators. In conclusion, various requests of compost tests can be satisfied by the lab-scale intelligent membrane-covered aerobic composting reactor system.

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孙晓曦,马双双,韩鲁佳,黄光群.智能型膜覆盖好氧堆肥反应器设计与试验[J].农业机械学报,2016,47(12):240-245. Sun Xiaoxi, Ma Shuangshuan, gHan Lujia, Huang Guangqun. Design and Test on Lab-scale Intelligent Membrane-covered Aerobic Composting Reactor[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(12):240-245.

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  • 收稿日期:2016-09-05
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  • 在线发布日期: 2016-12-10
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