The dissolution of molecular oxygen in the air in water is called dissolved oxygen. The content of dissolved oxygen in w...
Chemical oxygen demand, also known as chemical oxygen demand, abbreviated as COD. It is the use of chemical oxidants (su...
How to detect COD in sewage?Most people would definitely say to use the national standard method, but the national stand...
The determination of dissolved oxygen is the main means of detecting water environmental pollution, therefore, it is par...
Chemical Oxygen Demand (COD) is a chemical method used to measure the amount of reducing substances that need to be oxid...
Ammonia nitrogen is a common pollutant in industrial and municipal wastewater. A large amount of wastewater containing a...
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