Waste water and sewage management, importance of sanitisation and drainage

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Across
  1. 4. -microorganisms that cause desisirs
  2. 5. -used water
  3. 6. - cleaning of water is a process of removing
  4. 9. waste products
Down
  1. 1. -meansof removal of waste water
  2. 2. - Drainage water empties out into
  3. 3. related to hygiene
  4. 7. pipe carrying sewage ......
  5. 8. oil and fats- drains get blocked by (2words )