MEDIUM
7th CBSE
IMPORTANT
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How can the sewage disposed through the septic tanks?

Important Questions on Wastewater Management

MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Exercises>Q D
What are vermi-composting toilets?
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Exercises>Q D
How can biogas plants be used for sewage disposal?
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Exercises>Q D
What should be kept in mind while providing sanitation facilities to public at places with huge gatherings?
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Exercises>Q D
Why should garbage not be thrown on roads?
HARD
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Think and Answer>Q 1
Suggest a reason for water supplied to a particular colony by the municipal corporation to be turbid and blackish despite water being properly treated before getting supplied. (Hint: leakage in pipelines)
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Think and Answer>Q 2
The people in the same colony suffered from diseases, such as gastroenteritis, dysentery, and typhoid, after drinking the seemingly clean water supplied from the wastewater treatment plant. Which process was probably not being carried out properly? (Hint: Process where bacteria are killed)
MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Subject Enrichment>Q 1

Asha visited her native village and noticed that most of the houses did not have toilets. The villagers were defecating in open. During monsoons, there was water logging and the faeces got mixed up with water. This water was also getting mixed up with local water bodies used by villagers for drawing drinking water. The villagers were frequently falling ill. Asha explained the harmful effects of open defecation to the villagers and suggested different methods for safe disposal of waste. 

State any two values exhibited by Asha. 

MEDIUM
7th CBSE
IMPORTANT
Science Horizons>Chapter 18 - Wastewater Management>Subject Enrichment>Q 1

Asha visited her native village and noticed that most of the houses did not have toilets. The villagers were defecating in open. During monsoons, there was water logging and the faeces got mixed up with water. This water was also getting mixed up with local water bodies used by villagers for drawing drinking water. The villagers were frequently falling ill. Asha explained the harmful effects of open defecation to the villagers and suggested different methods for safe disposal of waste. 

Explain ways for sewage disposal in places that lack sewer system?