Overview: What is TDS?
Water is regarded as a universal solvent due to its ability to dissolve and absorb molecules from a wide range of substances. Therefore, it even dissolves many unwanted substances. Total dissolved solids (TDS) refers to the number of dissolved particles in a quantity of water. These solids might be organic or inorganic.
Understanding the TDS level and total dissolved solids in your water/wastewater can help you build a picture of its overall water quality.
What exactly is TDS in water?
Total dissolved solids (TDS) are the amount of organic and inorganic components dissolved in a given volume of water, such as metals, minerals, salts, and ions. These are effectively a measurement of anything dissolved in water that is not an H2O molecule.
Because water is a solvent, when it comes into contact with soluble materials, the substance particles are absorbed into the water, resulting in total dissolved solids. TDS in water can be derived from severalsources, such as groundwater sources, springs, chemicals used to manage drinking water, road and yard runoff, and even your home plumbing systems.
How is TDS calculated?
Total dissolved solids (TDS) are measured in milligrams per litre (mg/L) of water, often known as parts per million (ppm).
The simplest technique to measure total dissolved solids is to test your water with a TDS meter. For example, if a TDS meter reads 100 ppm, it signifies that out of one million particles, 100 are dissolved ions and the remaining 999,900 are water molecules.This is regarded as a low TDS level. TDS meter, on the other hand, does not reveal the types of TDS present, which is ultimately the most vital information to know about your water quality.
The meters estimate the real TDS level based on the conductivity. As a result, a home water test kit or a lab water analysis is suggested to determine exactly what forms of TDS are present in your water. Furthermore, your water supplier is obligated to test and maintain water quality reports and will offer these upon request.
If you have a reverse osmosis system, you may use the method below to compute the percent rejection of TDS and monitor the performance of your RO system.
1: Submerge the tester's probes in a glass of tap water to determine the TDS of raw feed water. Keep track of the outcomes.
2: To test the TDS of your RO water, fill a glass with RO water (from the RO faucet) and immerse the tester's probes in it. Keep track of the outcomes.
3: Using the formula below, calculate the percentage of rejection:
Drinking Water Safety Requirements
In order to provide customers with safe drinking water, the Bureau of Indian Standards (BIS) has created drinking water quality standards in India. It is vital that drinking water sources be tested on a regular basis to ensure whether or not the water fulfils the defined requirements, and if not, the amount of contamination/unacceptability, as well as the required follow-up.
Another water quality standard was established by the Government of India's “Ministry of Water Resources in 2005”. This is recognised as the Uniform Protocol for Water Quality Monitoring.
According to the “Central Ground Water Board, BIS (IS-10500 and revised module IS 10500:2012)”, it incorporates requirements in the Uniform Drinking Water Quality Monitoring Protocol. This criterion has two constraints in the absence of another source: acceptable limits and permissible limits. The water is judged hazardous for human consumption if any of the criteria exceeds the limit. In general, the BIS considers water unfit to drink if it is bacteriologically polluted (for example, with E-coli and viruses) or if chemical contamination exceeds maximum permissible limits.
According to the BIS research, if the TDS in drinking water exceeds 500 mg/L, it might cause gastrointestinal irritation as well as a decrease in palatability (pleasant taste).
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Technical assistance and guidance
Netsol Water collaborates with a wide range of international organizations to tackle complicated problems by strategically integrating modern treatment technology with practical solutions. We provide solutions for water (RO Plants), wastewater (STP, STP), air, solid waste disposal, among other services in commercial as well as industrial facilities.