Wastewater story
Outline your role as an active citizen in relation to sanitation.
Wastewater story
Explain the relationship between sanitation and disease.
Wastewater story
Explain the Junction of bar screens in a wastewater treatment plant.
Wastewater story
Name two chemicals used to disinfect water.
Wastewater story
Untreated human excreta is a health hazard. Explain.
Wastewater story
What is sludge? Explain how it is treated.
Wastewater story
Describe the steps involved in getting clarified water from wastewater.
Wastewater story
Why should oils and fats be not released in the drain? Explain.
Wastewater story
What is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seas.
Forest :Our lifeline
Micro-organisms act upon the dead plants to produce
(i) sand
(ii) mushrooms
(iii) humus
(iv) wood
