7.1.1. Filtration Process

Try these first

1. 1.

   What does TSS stand for?

   Hint

   Think about what kinds of materials are measured in water.

2. 2.

   What is filtration?

   Hint

   Consider the method used in a lab to measure suspended particles.

3. 3.

   What does TSS measure?

   • Only dissolved substances
   • Total suspended solids
   • Only bacteria

   Hint

   Think about the contents in murky water.

4. 4.

   Is a measurement of 0 TSS always accurate?

   • True
   • False

   Hint

   Consider the limits of measuring instruments.

5. 5.

   A technician collects a water sample with a known TSS of 0.4 g/L in a 1-liter container. After filtration, the weighing balance reads 0.1 grams more than the empty filter weight. How would the technician confirm the reading is reliable?

   Hint

   What steps did we talk about to ensure reliability?

6. 6.

   You have two samples: Sample A with TSS of 0.05 g/L and Sample B with TSS of 0.15 g/L. If both are filtered with a 1-liter sample, which sample would require a larger volume for reliable TSS measurement?

   Hint

   Think about how low concentrations can be accurately detected.