The correct option is (b)
Explanation
Chemical toilets are self-contained sanitation units that use chemicals to deodorize and liquefy human waste. They are distinct from standard flush toilets as they do not rely on a continuous flow of water or a connection to a sewage network.
Statement 1 is Incorrect:
Chemical toilets do not require a direct connection to a centralized treatment plant or a sewerage network. Instead, they collect waste in a holding tank located directly beneath the toilet seat. The waste is stored temporarily and treated with chemicals (typically biocides and fragrances) to control odor and decomposition until the tank can be emptied at a designated disposal point.
Statement 2 is Correct:
Because they are portable and self-contained, chemical toilets are specifically designed for locations where no sewerage system or water infrastructure is available. Common applications include construction sites, outdoor festivals, aircraft, trains, and remote camping areas.
Key Takeaway:
Chemical toilets are standalone, portable sanitation solutions that use chemicals to manage waste in a holding tank, making them suitable for areas lacking sewerage infrastructure.