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Wastewater Story — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceWastewater Story5 Marks
Question
There are many alternative sewage disposal systems which have been developed as per needs of the community, persons, occasions, etc. Few situations/ specifications of the sewage need are given below. Write the name of sewage which can be used in the following conditions.
  1. A toilet which can provide high quality manure.
  2. The toilet which is used in aeroplane during flight.
  3. A toilet which can be used in some out door gathering.
  4. A toilet used in limited water supply.
  5. A toilet which contaminates water of hand pump installed nearby.
✓

Answer

  1. Vermi-composting toilets.
  2. Vacuum toilets.
  3. Chemical toilets.
  4. Composting toilets.
  5. Septic tank toilets.

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