How to test the quality of your own direct drinking water? Take you to know it!

2022-08-19 16:22

The safety of drinking water quality is directly related to human health. Water quality detection is one of the core elements of drinking water supervision, and is an important link to ensure that the quality of drinking water reaches the standard.



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01

Residual chlorine detection in water



After the water is treated with chlorine containing disinfectant, there will be residual chlorine, which can be divided into free residual chlorine, combined residual chlorine and total residual chlorine.

Free residual chlorine: The Cl ∈, HOCl and OCl in the aqueous solution are collectively referred to as free residual chlorine, which is a residual chlorine component with good antivirus effect and strong oxidation.

Combined residual chlorine: when there is ammonium (amine, ammonia) in the water, chlorine reacts with ammonium to produce chloramine (monochloramine, dichloramine, trichloramine), which is called combined residual chlorine.

Total residual chlorine: the general term of free residual chlorine and combined residual chlorine.

Excessive residual chlorine content in water will increase the smell of water, and also bring some harmful by-products (such as chloroform). Different detection methods can be used to quickly determine the free residual chlorine in the field.




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02

TDS value detection



TDS pen - a tool for detecting water quality. TDS is the total dissolved solids, in mg/l. The more solids dissolved in the water, the higher the TDS value of the water and the worse the water quality. To detect the TDS value of water, we usually use a TDS test pen.



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TDS detection pen is a commonly used household water detection tool at present. It can preliminarily judge the quality of local water quality in a simple and intuitive way.




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It is understood that water environment pollution still exists in China at this stage, and the safety of drinking water for urban and rural residents has been threatened. Nearly 60% of the country's population is drinking water that does not meet the hygiene standards. It is urgent to solve water pollution and protect people's health.



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