规模化好氧堆肥温氧监测系统设计与试验  

Design of Temperature and Oxygen Monitoring System for Large-scale Aerobic Composting

作　　者：曾剑飞[1] 张安琪[1] 黄光群[1] 韩鲁佳[1] 

机构地区：[1]中国农业大学工学院,北京100083

出　　处：《农业机械学报》2015年第3期186-191,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(31201684);教育部新世纪优秀人才支持计划资助项目(NCET-12-0524);北京高等学校青年英才计划资助项目(YETP0319)

摘　　要：为实时获取规模化好氧堆肥过程关键数据,实现自动化控制、优化堆肥工艺、提升产品品质,在已有研究基础上,设计了一种集成度高、便携性好的适用于规模化好氧堆肥过程的温度和氧体积分数实时监测系统,该系统主要包括温度数据获取模块、氧体积分数数据获取模块、信号处理模块、数据显/存模块。并系统开展了实验室和实际规模化好氧堆肥性能试验和分析研究。其中,温度监测相对标准偏差均小于3.02%,响应时间均小于45 s;氧体积分数监测相对标准偏差均小于2.96%,响应时间均小于30 s。研究结果表明:该系统在精确性、稳定性和响应速率等方面均具有良好性能,可满足规模化好氧堆肥过程温度和氧体积分数空间数据实时监测以及科研需求。To obtain real-time data during large-scale aerobic composting, realize automation control, optimize the composting process and improve product quality, a real-time monitoring system for temperature and oxygen concentration during large-scale aerobic composting with high integration and easy portability was developed on the basic of current studies. The system was consisted of temperature acquisition module, oxygen concentration acquisition module, signal processing module and data display and storage module. Performance experiments were operated in laboratory and actual large-scale aerobic composting, respectively. The results showed that the relative standard deviation （RSD） of temperature monitoring was inferior to 3.02% and response time was less than 45 s ; the RSD value and response time of oxygen concentration was inferior to 2.96% and 30 s. In conclusion, the system has good performances such as high accuracy, good stability and fast response speed; it can satisfy the need of real-time monitoring of temperature and oxygen concentration in the process of large-scale aerobic composting and the need of scientific research.

关 键 词：好氧堆肥 规模化 温度 氧体积分数 实时监测 

分 类 号：X705[环境科学与工程—环境工程] S141.4[农业科学—肥料学]