Praktikum Kualitas Air DTPKL: Analisis TSS (Total Suspended Solid) dan TDS (Total Dissolved Solid).

Summary

This video script outlines a detailed procedure for measuring Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) in a laboratory setting. It explains the step-by-step process involving tools like an aluminum dish, filter paper, and analytical balance, as well as the careful handling of samples during filtration and weighing. The script also highlights the importance of precise temperature control in the oven and desiccator for drying the samples. Emphasizing accuracy, the procedure ensures reliable data collection by performing multiple measurements and calculations. Overall, it's an essential guide for anyone working with these types of solid measurements in a lab.

Takeaways

• 😀 The process starts by preparing equipment for measuring TDS and TSS, including aluminum cups, filter paper, and other necessary materials.
• 😀 An oven is preheated to 105°C before use to reduce moisture in the equipment, including the filter paper and aluminum cups.
• 😀 The filter paper is folded into a specific shape and placed into the aluminum cup to prepare for oven drying.
• 😀 The equipment is then heated in the oven at 180°C for one hour to reduce moisture before use in the experiment.
• 😀 After heating, the equipment is placed into a desiccator for 15 minutes to absorb remaining moisture.
• 😀 Once the equipment is cooled in the desiccator, it is weighed using an analytical scale to obtain the initial weight.
• 😀 The process includes filtering a sample, with water measured and added to rinse the filter paper and ensure all TDS is collected.
• 😀 The sample is filtered in several stages, with rinsing done to ensure that the TDS components are thoroughly removed from the filter paper.
• 😀 After filtering, the solution containing TDS is transferred to the aluminum cup, which is then dried in the oven at 105°C for one hour.
• 😀 The final step involves weighing the dried filter paper and aluminum cup to determine the weight of the TSS and calculate the average from three readings.

Q & A

What is the purpose of measuring TDS and TSS in the script?

The purpose is to measure Total Dissolved Solids (TDS) and Total Suspended Solids (TSS) in samples. TDS refers to the dissolved particles in the liquid, while TSS measures the solid particles that remain suspended in the liquid.

Why is the aluminum crucible used in the process?

The aluminum crucible is used to hold the filter paper during the measurement process, providing a stable container for the solid materials being weighed after filtration.

What temperature is required for the oven in the process?

The oven should be preheated to a temperature of 105°C to dry the materials properly and remove any moisture before weighing.

What role does the desiccator play in the procedure?

The desiccator is used to allow the materials to cool down and absorb any remaining moisture after they have been removed from the oven. This helps ensure that the weights measured are accurate and not influenced by water content.

How long should the sample be in the oven for drying?

The sample should be placed in the oven for one hour to ensure that it dries completely and no liquid remains in the sample.

What is the purpose of rinsing the filter paper with distilled water?

The filter paper is rinsed with distilled water to ensure that any remaining particles or solutes that could interfere with the TDS or TSS measurements are washed away, leaving only the intended solids.

How is the filtration process carried out?

The filtration process is carried out by placing the filter paper in a funnel and adding 50 mL of the sample, ensuring it passes through the filter paper. Additional rinsing with distilled water is done to ensure all suspended solids are collected.

What is the significance of weighing the sample three times?

Weighing the sample three times helps ensure accuracy and reliability in the measurement. The average of the three readings is used to obtain a precise result.

Why must the balance be reset to zero before each weighing?

Resetting the balance to zero ensures that the weight of the container and the filter paper are not included in the measurement of the sample, allowing for an accurate measurement of the solids.

What is the final step after drying the filter paper and sample?

After drying, the filter paper and sample are placed in the desiccator for cooling. Once the materials have cooled down and reached equilibrium, they are weighed again to obtain the final mass.