Wastewater treatment plant requires costly infrastructure to build and to be maintained. So, we should be an active citizen and limit the type of waste. Try to follow the following: • Open drains be covered and keep our surroundings clean. • Should not litter anywhere adopt good sanitation practicesRead more
Wastewater treatment plant requires costly infrastructure to build and to be maintained. So, we should be an active citizen and limit the type of waste. Try to follow the following:
• Open drains be covered and keep our surroundings clean.
• Should not litter anywhere adopt good sanitation practices e.g. oil and fats should not be thrown in drains.
• Chemicals like paints, insecticides, motor oil etc. should not be thrown in drain which may kill useful bacteria.
• Used tealeaves, solid food remains, soft toys, cotton, sanitary towels, etc. should also be thrown in the dustbin.
• Make people aware and encourage community practices to keep our environment clean.
• Separate trash as recycled waste and non-recycled.
A large number of diseases is caused due to poor sanitation and contaminated drinking water. Poor sanitation leads to growth of harmful microbes, flies and mosquitoes which are the source of spreading many diseases like cholera, typhoid, polio, meningitis, hepatitis and dysentery. https://www.tiwariRead more
A large number of diseases is caused due to poor sanitation and contaminated drinking water. Poor sanitation leads to growth of harmful microbes, flies and mosquitoes which are the source of spreading many diseases like cholera, typhoid, polio, meningitis, hepatitis and dysentery.
Bar screens are used to remove large objects like rags, sticks, cans, plastic packets napkins, etc. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
Bar screens are used to remove large objects like rags, sticks, cans, plastic packets napkins, etc.
Chemicals like chlorine (Chlorine dioxide) and ozone (in the pharmaceutical industry) are commonly used to disinfect water. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
Chemicals like chlorine (Chlorine dioxide) and ozone (in the pharmaceutical industry) are commonly used to disinfect water.
Untreated human excreta contains many pathogens and disease causing microbe like cholera, diarrhea, typhoid, polio, meningitis, hepatitis etc. The germs of these diseases can easily reach human population through air, water or insects and through contaminated food and water. Thus, untreated human exRead more
Untreated human excreta contains many pathogens and disease causing microbe like cholera, diarrhea, typhoid, polio, meningitis, hepatitis etc. The germs of these diseases can easily reach human population through air, water or insects and through contaminated food and water. Thus, untreated human excreta are a health hazard.
Outline your role as an active citizen in relation to sanitation.
Wastewater treatment plant requires costly infrastructure to build and to be maintained. So, we should be an active citizen and limit the type of waste. Try to follow the following: • Open drains be covered and keep our surroundings clean. • Should not litter anywhere adopt good sanitation practicesRead more
Wastewater treatment plant requires costly infrastructure to build and to be maintained. So, we should be an active citizen and limit the type of waste. Try to follow the following:
• Open drains be covered and keep our surroundings clean.
• Should not litter anywhere adopt good sanitation practices e.g. oil and fats should not be thrown in drains.
• Chemicals like paints, insecticides, motor oil etc. should not be thrown in drain which may kill useful bacteria.
• Used tealeaves, solid food remains, soft toys, cotton, sanitary towels, etc. should also be thrown in the dustbin.
• Make people aware and encourage community practices to keep our environment clean.
• Separate trash as recycled waste and non-recycled.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
See lessExplain the relationship between sanitation and disease.
A large number of diseases is caused due to poor sanitation and contaminated drinking water. Poor sanitation leads to growth of harmful microbes, flies and mosquitoes which are the source of spreading many diseases like cholera, typhoid, polio, meningitis, hepatitis and dysentery. https://www.tiwariRead more
A large number of diseases is caused due to poor sanitation and contaminated drinking water. Poor sanitation leads to growth of harmful microbes, flies and mosquitoes which are the source of spreading many diseases like cholera, typhoid, polio, meningitis, hepatitis and dysentery.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
See lessExplain the function of bar screens in a wastewater treatment plant.
Bar screens are used to remove large objects like rags, sticks, cans, plastic packets napkins, etc. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
Bar screens are used to remove large objects like rags, sticks, cans, plastic packets napkins, etc.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
See lessName two chemicals used to disinfect water.
Chemicals like chlorine (Chlorine dioxide) and ozone (in the pharmaceutical industry) are commonly used to disinfect water. https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
Chemicals like chlorine (Chlorine dioxide) and ozone (in the pharmaceutical industry) are commonly used to disinfect water.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
See lessUntreated human excreta is a health hazard. Explain.
Untreated human excreta contains many pathogens and disease causing microbe like cholera, diarrhea, typhoid, polio, meningitis, hepatitis etc. The germs of these diseases can easily reach human population through air, water or insects and through contaminated food and water. Thus, untreated human exRead more
Untreated human excreta contains many pathogens and disease causing microbe like cholera, diarrhea, typhoid, polio, meningitis, hepatitis etc. The germs of these diseases can easily reach human population through air, water or insects and through contaminated food and water. Thus, untreated human excreta are a health hazard.
https://www.tiwariacademy.com/ncert-solutions/class-7/science/chapter-18/
See less