摘要
阐述了测压法测定污水处理厂污水中BOD5的原理和操作方法。根据BOD5的测量范围给出了样品的取样量和计算系数。进行了测压法和稀释法测定生化出水和进水的对比试验,由于测压法在测定过程中有搅拌作用,致使所测结果比稀释法高。应用测压法每天的测量结果绘成曲线能对测定过程中出现的问题作出判断,加以补救和评价。对测压法的特点作了较详尽的叙述。
The principle and operation method of manometic method to determine sewage's BOD5 in sewage plant were discussed. The sampling amount and calculation coefficient were worked out accordance with the determination limit of BOD5. This manometric method was compared with dilution method in detection of biochemical input water and output water. The detection result with manometric method was higher because of the existence of mixing during detection. So, it is necessary to evaluate everyday detection data to find whether there had mistake.
出处
《环境监测管理与技术》
2003年第5期29-30,共2页
The Administration and Technique of Environmental Monitoring
