2. Detection of organic bacteria and viruses in water: It is not only residual chlorine that affects water quality, but also organic matter, heavy metals and other pollution. To detect whether these pollutants have been removed by the water purifier, a water quality electrolyzer is needed. The lighter the color of water, the better the water quality, and vice versa. You can also compare the color of water with the color in the electrolytic water quality specification to determine which impurities are still more in the water.
3.TDS value detection: There is also a tool for detecting water quality in the world-TDS pen. Let's first understand the concept of TDS. TDS is the total amount of dissolved solids in mg/L. The more solids dissolved in water, the higher the TDS value of water and the worse the water quality.
Extended data:
principle of operation
The first stage: PP cotton: remove all kinds of visible objects/dust and impurities from tap water.
Second and third stages: Pre-activated carbon: The third stage of some low-grade water purifiers is also PP cotton, and activated carbon removes chlorine and organic impurities. It can also absorb the peculiar smell, color and smell produced by organic matter in water.
The fourth stage: ultrafiltration or reverse osmosis membrane: the membrane can remove bacteria, viruses and spores from water.
Stage 5: Post-activated carbon device: further improve the taste and remove the odor.
Baidu encyclopedia-water purifier