压差法测BOD的应用研究  

The Research How to Measure BOD by Getting Gas'pressure Distinction

作　　者：韦连喜[1] 李朝晖[1] 何艳[1] 

机构地区：[1]河南省平顶山工学院环境工程系,河南平顶山467000

出　　处：《干旱环境监测》2005年第1期13-15,共3页Arid Environmental Monitoring

摘　　要：BOD测定时的恒温培养过程中,好氧生化反应可导致密闭系统的压力不断减少(压差),为此,建立BOD与压差的相关曲线,利用该曲线,在测得压差的情况下,可计算溶液的BOD。该方法与标准方法相比,测定范围宽,可随时了解测定状况,准确度和精密度相当,是一种值得推广的方法。In the course of cultivating microbes by which we can measure the BOD of waste water, aerobic reaction leads system's pressure continous reducing(pressure distinction). We set up the correlative which shows the relationship between BOD and pressure distinction, then compared with standard method, the method is used in more broad scope and it can help us to learn the measure's condition at any moment, and at the same time it's nicety grade and precision are as good as the standard method. So it's a useful method which is worth popularizing.

关 键 词：BOD 压差 相关曲线 

分 类 号：X830.2[环境科学与工程—环境工程]