COD online analyzer selection issues
Thread Content
Industrial wastewater outlet, cod value
The sewage treatment is good. less than 3.
The choice of cod online analyzer has a great relationship with the export water quality； Various methods and products have their own pros and cons ； Chromium method COD brings secondary pollution, but it is still an internationally accepted method ； Based on your situation, I would like to suggest that you use the electrode method. Of course, there are many products available at home and abroad. It is recommended to support domestic products.
The effluent is only 3mg/L? The treatment is too good, the environmental protection department directly approves the results of COD using the chromium method, but it consumes reagents. If you use ultraviolet COD (CODuv), the running cost will be less, but you need to take samples to the laboratory for calibration.
It will be of great help to you to seek advice from the local environmental protection department.
Thank you for your answers. I have a few questions to ask: 1. I heard that the UV method is suitable for the measurement of pure water or the measurement of relatively stable water quality. It seems that it is not suitable for general industrial sewage. Is this true? 2. COD value