Water chlorination und sewage treatment plant: was sie gemeinsam haben

1. Schritt 1. Water chlorination — wird verwendet in — Plumbing. Tap water is disinfected.
2. Schritt 2. Plumbing — funktioniert wie — Aquädukt. An aqueduct brings water to a city, plumbing distributes it inside; Minoan pipes are older than the Roman aqueducts.
3. Schritt 3. Aquädukt — funktioniert wie — Sewerage. Both systems carry water by gravity through channels: one drains waste, the other supplies water; the drains of Mohenjo-daro are older than the Roman aqueducts.
4. Schritt 4. Sewerage — hat als Teil — Sewage treatment plant. Treatment plants.

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