11.6. Filtration or Purification

Try these first

1. 1.

   What is the function of a first-flush device?

   Hint

   It helps improve water quality.

2. 2.

   Name two materials used for filtration.

   Hint

   Both are commonly found in nature.

3. 3.

   What is the primary purpose of the first-flush device?

   • To enhance water flavor
   • To remove contaminants from initial rainwater
   • To store water

   Hint

   Think about the initial rainwater's quality.

4. 4.

   True or False: Sand filters are highly complex and expensive to build.

   • True
   • False

   Hint

   Consider the materials used.

5. 5.

   Design a rainwater harvesting system for a small house, including details about catchment area, filtration method, and storage capacity based on average rainfall.

   Hint

   Consider the area of your roof and average monthly rain.

6. 6.

   Analyze the impact of improper filtration and storage on rainwater quality, providing examples of potential health risks.

   Hint

   Think about how water quality directly relates to health.