What is TDS? What is the standard for TDS?
Every time you check your water quality, you often hear TDS. So what is the TDS index? Is dirty water due to TDS? Let's go find Green with this index. 
See now: Industrial wastewater treatment chemicals
1. What is the TDS index?
You can understand TDS is the total content of soluble solids in a volume of water. It is defined as a pollutant that seriously affects human health. It includes minerals, salts, metals that exist in water. And it is evaluated by world experts as the basis for determining the purity of the water source to be examined.
What is the TDS index?
TDS is generated by water circulation and exists in the form of negative ions and positive ions. Therefore, TDS has a very high solubility and often removes the ions of matter when it comes in contact. Also, TDS content is easily increased due to domestic waste, industrial wastewater, chemical components, or metal ions on the surface of pipes.
2. Method of measuring TDS - water soluble solids
To measure TDS, we can use two methods: Weight analysis and conductivity analysis
Weight analysis: This method is intended to evaporate liquid solvents to determine the residual mass. Although this method is quite accurate but consumes a lot of time, it is not applied much
Conductivity analysis: TDS exists in the form of negative and positive ions so it is capable of conducting electricity. From there, you can use a TDS meter to measure the TDS index in the water. This method is quite simple and gentle, the results are also very accurate
3. Is dirty water due to TDS?
Permitted TDS in Vietnam will not exceed 170 ppm for drinking water and should not exceed 400 ppm for drinking water, but if 500 ppm or more, the country cannot use it. Therefore, users are very interested in using water with low TDS.
However, too low TDS is not a good thing because a low indicator means a clean water source. That the water source is too clean will no longer have mineral content. If you use this water for a long time, it will not be good for your health.
If the index is around 170, it will be both beneficial and harmful. At this index, water will not contain pollutants but contains beneficial minerals such as Salt, Calcium, Sodium, etc. Therefore, TDS is not the cause of water contamination. And if you want to check whether your home country has quality assurance, please bring it to a reputable center for inspection.
Standard and safe TDS for users
3. Benefits and harms of TDS
Benefit
Although TDS is not the main cause of water pollution, it is used to indicate some chemical contaminants in rivers, streams, ponds, lakes, etc.
In addition, TDS is often used. in aquaculture to create a favorable water quality environment for organisms.
Harm
If the TDS in the water is too high, it will directly affect human health. It will carry solids and metals dissolved in water into the body and cause dangerous diseases to humans.
Next, it will affect the taste of drinks and dishes. A typical example is to make beer bitter after a short time, or make the water taste salty and metallic.
In addition, it also makes normal water become hard water , causing scale in heating equipment such as pipes, boilers, cooling towers, ...
4. Remedies and reduction of TDS in the country
Today there are many measures to reduce the TDS index in the country such as distillation, deionization, ... but these ways are quite complex and not highly effective. Therefore, using a water filter is the best method to reduce the DTS index for water resources.
Remedies and reduction of TDS in the country
Water purifiers today use a lot of different technologies but they all have a common purpose that is to help create the cleanest water. It removes water-soluble bacteria, viruses, impurities, and metals. In addition, the water filtration system also has the function of supplementing minerals to benefit the body, enhancing bactericidal. Therefore, we can use water directly at the tap without boiling. You can refer to the types of water filters such as: Karofi, Kangaru, Coway, Sunhouse, ...
Yes, that's all the knowledge of TDS that I want to share with you. Hopefully, through the above article, you can understand "What is TDS?" .