一种实验室厌氧反应器的双室型产气计量装置
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摘要
为实现厌氧反应器中产气量的精确计量,利用湿法集气原理设计并制作了一种集气体收集、气室状态切换和电子测量与控制于一体的计量装置,并对制作的装置进行标定和应用实验。结果表明该装置计量值和标准值的判定系数(R~2)达0.999以上,精确度为2.12;利用平均修正系数对数学模型进行修正后,装置计量值与标准值的线性回归方程接近正比例函数,R2为0.999 9,精确度为0.79;该装置与湿式气体流量计串联对ABR反应器进行了12 h的计量对比实验,两者计量的气体总量分别为29.513、29.356 L,相差0.25 L。表明该计量装置可进行产气量的精确计量。
In order to achieve accurate measurement of the volume of anaerobic reactor,an automatic gas flow metering device for monitoring biogas production from laboratory-scale anaerobic reactor was designed.This device was composed of a gas collecting system,a gas chamber switching system,an electronic measurement and control system. Calibration experiments were carried out to verify the accuracy of this device.Results show that coefficient of determination R~2 between measured values and standard values is more than 0.999,and the accuracy is 2.12.After using average correction factor amend the mathematical model of device,the linear regressing equation between measured values and standard values is closed to proportional function,R~2 is 0.9999,and the accuracy is 0.79.Then,this device and a wet gas meter measured biogas production from an ABR reactor in 12 hours in series,the total gas productions of which are 29.513 L and 29.356 L.And the difference between them is 0.25 L.Experiment result indicates this metering device can accurately monitor biogas production.
In order to achieve accurate measurement of the volume of anaerobic reactor,an automatic gas flow metering device for monitoring biogas production from laboratory-scale anaerobic reactor was designed.This device was composed of a gas collecting system,a gas chamber switching system,an electronic measurement and control system. Calibration experiments were carried out to verify the accuracy of this device.Results show that coefficient of determination R~2 between measured values and standard values is more than 0.999,and the accuracy is 2.12.After using average correction factor amend the mathematical model of device,the linear regressing equation between measured values and standard values is closed to proportional function,R~2 is 0.9999,and the accuracy is 0.79.Then,this device and a wet gas meter measured biogas production from an ABR reactor in 12 hours in series,the total gas productions of which are 29.513 L and 29.356 L.And the difference between them is 0.25 L.Experiment result indicates this metering device can accurately monitor biogas production.
引文
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[12]任南琪,马放.污染控制微生物学原理与应用[M].北京:化学工业出版社,2003:102-105.
[13]王爱杰,王丽燕,任南琪,等.硫酸盐废水生物处理工艺研究进展[J].哈尔滨工业大学学报,2004,36(11):1446-1501.
[14]梁国伟,蔡武昌.流量测量技术及仪表[M].北京:机械工业出版社,2002:455-499.
[15]全国流量计量技术委员会.JJG633—2005气体容积式流量计检定规程[S].北京:中国计量出版社,2005.
[16]全国法制计量技术委员会.JJF1094—2002测量仪器特性评定[S].北京:中国计量出版社,2002.
[17]全国工业过程测量与控制标准化委员会.GB/T 13283—2008工业过程测量和控制用检测仪表和显示仪表精确度等级[S].北京:中国标准出版社,2008.
[18]张秋萍.天然气流量计量压缩因子影响探讨[J].中国计量,2015(6):111-113.
[19]李建政,蒋凡,郑国臣.ABR发酵产氢系统的控制运行及产氢效能[J].环境科学学报,2010,30(01):79-87.
[2]LIU J,OLSSON G,MATTIASSON B,et al.Control of an anaerobic reactor towards maximum biogas production[J].Water Science&Technology A Journal of the International Association on Water Pollution Research,2004,50(11):189-198.
[3]李建政,苏晓煜,昌盛,等.p H对发酵系统的产甲烷活性抑制及产氢强化[J].哈尔滨工业大学学报,2012,44(4):63-66.
[4]郑国臣,李建政,昌盛,等.ABR发酵系统运行特性及产氢效能的研究[J].中国环境科学,2013,33(1):75-81.
[5]郑阳,王鲁宁,张宝艺,等.“活性污泥—生物膜”杂合ABR制氢系统的启动和运行[J].化工学报,2016,67(9):3861-3871.
[6]沈文新,廖新.湿式气体流量计计量特性的探讨[J].自动化仪表,2010,31(1):56-58.
[7]沈文新,季艳,金岚.标准湿式气体流量计回转误差的探讨[J].计量技术,2008(11):47-49.
[8]蒋永荣,孙振举,陆冬云,等.应用于实验室厌氧反应器的产气计量装置:中国,201420706039.0[P].2015-06-24.
[9]MARTINEZ-SIBAJA A,ALVARADO-LASSMAN A,ASTORGA-ZARAGOZA C M,et al.Volumetric gas meter for laboratory-scale anaerobic bioreactor[J].Measurement,2011,44(10):1801-1804.
[10]PEREDA R O C,MUNOZ E M R,RUIZ G H.Automatic volumetric gas flow meter for monitoring biogas production from laboratory-scale anaerobic digester[J].Sensors&Actuators B Chemical,2010,147(1):10-14.
[11]TAUBER T,BERTA B,SZAB Z,et al.A simple and novel volumetric method to meter low gas flows from laboratoryscale bioreactors and its application on laboratory sludge digesters[J].Applied Microbiology&Biotechnology,2011,90(4):1453-1461.
[12]任南琪,马放.污染控制微生物学原理与应用[M].北京:化学工业出版社,2003:102-105.
[13]王爱杰,王丽燕,任南琪,等.硫酸盐废水生物处理工艺研究进展[J].哈尔滨工业大学学报,2004,36(11):1446-1501.
[14]梁国伟,蔡武昌.流量测量技术及仪表[M].北京:机械工业出版社,2002:455-499.
[15]全国流量计量技术委员会.JJG633—2005气体容积式流量计检定规程[S].北京:中国计量出版社,2005.
[16]全国法制计量技术委员会.JJF1094—2002测量仪器特性评定[S].北京:中国计量出版社,2002.
[17]全国工业过程测量与控制标准化委员会.GB/T 13283—2008工业过程测量和控制用检测仪表和显示仪表精确度等级[S].北京:中国标准出版社,2008.
[18]张秋萍.天然气流量计量压缩因子影响探讨[J].中国计量,2015(6):111-113.
[19]李建政,蒋凡,郑国臣.ABR发酵产氢系统的控制运行及产氢效能[J].环境科学学报,2010,30(01):79-87.