Difference Between Total Suspended Solids (TSS) and Total Dissolved Solids (TDS)

 Total Suspended Solids (TSS) and Total Dissolved Solids (TDS)

Total suspended solids (TSS) and total dissolved solids (TDS) are important parameters used in water quality monitoring and analysis. They refer to the amounts of particles and substances present in water, respectively. In this blog, we will discuss TSS and TDS in detail, including their definitions, measurement methods, and significance in water quality management.

What are Total Suspended Solids (TSS)?

Total suspended solids (TSS) refer to the concentration of particles that are suspended in water and can be captured on a filter. These particles can include organic and inorganic materials, such as silt, sediment, and plant matter. High levels of TSS can make water appear cloudy, reduce the amount of light available for photosynthesis, and negatively impact aquatic life by interfering with respiration and feeding.

Measurement of TSS

TSS is typically measured by filtering a known volume of water through a pre-weighed filter and then drying and re-weighing the filter to determine the weight of the suspended solids. The TSS concentration is calculated by dividing the weight of the suspended solids by the volume of water sampled.

Significance of TSS

High levels of TSS in water can negatively impact aquatic life, reduce water clarity, and increase the cost of water treatment. Monitoring TSS can help identify sources of pollution and inform management decisions aimed at reducing the amount of suspended solids in water bodies.

What are Total Dissolved Solids (TDS)?

Total dissolved solids (TDS) refer to the concentration of substances that are dissolved in water, including salts, minerals, and organic compounds. These substances are too small to be filtered out and can be detected through a conductivity measurement. High levels of TDS can make water taste salty or bitter and can have negative impacts on human health and agriculture.

Measurement of TDS

TDS is typically measured using a conductivity meter, which measures the electrical conductivity of water. The conductivity is then converted into TDS using a calibration factor specific to the water being tested. Alternatively, TDS can also be determined by evaporating a known volume of water and weighing the residue left behind.

Significance of TDS

Monitoring TDS can provide information on the level of minerals and other substances present in water. High levels of TDS can negatively impact the taste of water, interfere with agricultural processes, and contribute to the buildup of scale in pipes and equipment. By monitoring TDS, water quality managers can identify potential issues and implement treatment solutions to maintain safe and healthy water supplies.

Conclusion

Total suspended solids (TSS) and total dissolved solids (TDS) are two important parameters used in water quality monitoring and analysis. TSS refers to the concentration of suspended particles in water, while TDS refers to the concentration of dissolved substances. Monitoring these parameters can provide valuable information on water quality and inform management decisions aimed at maintaining safe and healthy water supplies.