In which of the following process, human excreta is completely converted to vermi cakes?

Vermicomposting

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Vermi-processing toilets

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Biogas production

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None of the above

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Solution

The correct option is B Vermi-processing toilets
Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms.
In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers
Hence Vermi-processing toilets, human excreta is completely converted vermi cakes.
So, the correct answer is 'Vermi-processing toilets'.

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Q84. With reference to Bio-toilet, which of the above statement(s) is/are correct?

1. It involves the anaerobic process of decomposition of human excreta.

2. Anaerobic bacteria are abundantly available in cow dung.

Select the correct code.

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