JIANGSU JIUJIUJIAYI ULTRASONIC TECHNOLOGY CO.,LTD

The usually refers to humic organic matter in the water, cellulose, bacteria, viruses, and deliberately added organic additive, etc. More general cases, their impact is small. However, when the food, medicine, electronic components, such as cleaning must be strictly purification, otherwise it will cause serious pollution

The content of organic matter usually use chemical oxygen demand (COD) and biological oxygen demand (BOD) said.

1, chemical oxygen demand (cod). Under the condition of strong acid, receipt back, in potassium permanganate and potassium iodate make oxidation of organic matter in water samples, the consumption of oxidant is the chemical oxygen demand (cod).

2, biological oxygen demand (cod). Under certain conditions the organic matter in water samples under the action of microorganisms in biological oxidation, in a certain period of time the amount of dissolved oxygen from the water pump oxygen consumption.