Explain the alternative arrangements for sewage disposal.
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Solution
Alternatives for sewage disposal include:
It is possible to make arrangements for onsite sewage disposal. Septic tanks, for example, are constructed to collect human waste. Excreta decomposes into compost over time.
Composting pits can be built to dump waste and turn it into manure.
Sewage can be collected and turned into useful biogas in biogas plants.
Chemical toilets can be built since they do not require much water for human excreta disposal and are environmentally beneficial. These kinds of toilets are ideal for trains.