Which of the following are the alternate arrangements for sewage disposal? (2024)

Q.

Septic tanks, chemical toilets, composting pits are the examples of low cost __________ systems.

Q. Match the following correctly [3 MARKS]

Cleaning of water is a process ofsewage treatment plantWaste water released by houses is calledremoving pollutantsDried sludge is used aslow cost disposal systemsDrains get blocked bymanureWaste water is treated insewageSeptic tanks, chemical toilets, composting pits are example ofcooking oils and fats

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Q.

a) Why has it been suggested that we should plant eucalyptus trees all along sewage ponds? [2 MARKS]
b) Write short notes on septic tank and chemical toilets. [3 MARKS]

Q.

Ecological sanitation is a sustainable system for handling human excreta using dry composting toilets. Such “ecosave” toilets are working in many areas of:

Q. Which of these methods should NOT be used for disposal of urine and faeces if no sewage system is available?

(a) allowing untreated sewage to flow into rivers
(b) making septic tanks for sewage to flow into
(c) allowing sewage to flow into a biogas plant
(d) using a vermicomposting toilet