Sudip Saha TDS is a function of dissolved solids, which is dependent upon the chemistry of host rock. It is not a time dependent entity. So there is no apparent relationship among two.

However, water dissolves some material from the host rock to a limit, which can be attained in a specific time frame. In this scenario, age have a relationship with the TDS. The quantity of dissolved solids will increase for some specific time and once the limit to dissolve solids is attained there will be no more change in TDS and water chemistry.

Thanks

TDS & age of water are not correlated to each other, however the concentration of bicarbonate and silica concentration gives a rough idea of ground water age. The decreasing bicarbonate concn and increasing silica concn indicates that water is older in origin.

Dear Madam (Ms Supriya Singh),

Good evening. I am pleased to express my thanks to you for your immediate response. The relationship between age and bicarbonate and silica concentration is a matter of great interest for me. I would be highly obliged if you kindly provide some references on this.

With best regards,

Sudip Saha

Sudip Saha for age of water we use Tritium isotope analysis and to find out the source of water/origin of water we study the relation of Deuterium (H2)and O16 isotopes.

There is no relation between TDS and age of groundwater.

Total dissolved solids (TDS) depends primarily on the chemistry of the system and not time/age. Therefore, there is no known/established correlation between TDS and age of geologic control.

TDS has generally no relationship with the age of the water. In the context of groundwater it is possible that there is a relationship between the deeper (older) and shallow (younger) groundwater. I will suggest you to go through the model of chebotarev for geochemical evolution of groundwater. Please see this

For large sedimentary basins, the Chebotarev sequence can be described in terms of three main zones, which correlate in a general way with depth (Domenico, 1972):

Dear Sir Dr Anwar Qadir,

Good evening. I do agree with your opinions. Thank you Sir. With best.regards

Sudip Saha

Well,

Advice to follow the links, also in many conditions high TDS refers to late groundwater evolution, see the attached figure.

Sincerely

Article Modeling the Hydrogeochemical Processes and Source of Ions i...

Conference Paper APPLICATION OF ENVIRONMENTAL ISOTOPES TECHNIQUE IN GROUNDWAT...

TDS is a measure of the of organic and inorganic substances present in water and depends on the type of rocks that dissolved in water in terms of groundwater, it can give information on contamination. Hence, it is one of the indicators of ground and surface water quality and not a function of age.

Do research is better

TDS in ground water is originated by the dissolution of various rock minerals present as because, the solvent water has high solvation energy and thus act as universal solvent. In addition, water also has a level of saturation of TDS content depending on the solubility of minerals, pH, Temperature and redox potential. Hence, if ground water remains for a long period of time, then there must have possibilities for the TDS to reach to the saturation level showing increase in level. Again, during mobility of ground water from place to place, there also have opportunities to dissolve more salts. So, according to me, there might have positive relationship between age of water and TDS content in ground water.

Is there any possibilities of precipitation after being saturated in case of groundwater?

Well, Surely precipitated when pair of anion and cation reach oversaturation in a distinct temperature, like e.g calcite or aragonite crystals as mentioned Geods or stalagmite and/or stalactite, etc. Regards

Of course as explained by Dr B. Hussien in a very simple way.

Hi,

The scientists' advises above are right. There are some articles, which put forth a rough relationship between water's TDS and the age. However, in my perception, TDS is the quantity of minerals , which are present in the ground water. It may be independent of its age, but rather dependent on the rocks and the soil on which the water has been resting.

Normally age and TDS show positive correlation unless precipitation occurs.