Question

Here is crossword puzzle. Good luck!
Across:
3. Liquid waste products
4. Solid waste extracted in sewage treatment
6. A word related to hygiene
8. Waste matter discharged from human body
Down:
1. Used water
2. A pipe carrying sewage
5. Micro-organisms which cause cholera
7. A chemical to disinfect water

Answer 1

• ACROSS:

3. Liquid waste products -SEWAGE -Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc.

4. Solid waste extracted in sewage treatment -SLUDGE-Semi-solids such as faeces that settle down during wastewater treatment are called sludge.

6. A word related to hygiene-SANITATION-Sanitation refers to public health conditions related to clean drinking water and adequate treatment and disposal of human wastes and sewage. Preventing human contact with faeces is part of sanitation, as is hand washing with soap.

8. The waste matter discharged from the human body-EXCRETA -Excreta waste matter discharged from the body, especially faeces and urine.

• DOWN:

1. Used water -Waste materials -Used water is water returned to our sewers after use (e.g. toilet flush, baths, and showers) and contains waste materials.

2. A pipe carrying sewage -SEWER-Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc. The pipe carrying sewage is called sewer.

5. Micro-organisms which cause cholera -BACTERIA-Cholera is an infectious disease that causes severe watery diarrhoea, which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholera.

7. A chemical to disinfect water -OZONE-Ozone is a powerful oxidant, stronger than chlorine. Ozone is used to disinfect, deodorize, decolourize and decompose organic substances in water.