Water chlorination and sewage treatment plant: what they have in common

1. Step 1. Water chlorination — is used in — Plumbing. Tap water is disinfected.
2. Step 2. Plumbing — works like — Aqueduct. An aqueduct brings water to a city, plumbing distributes it inside; Minoan pipes are older than the Roman aqueducts.
3. Step 3. Aqueduct — works like — 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. Step 4. Sewerage — has part — Sewage treatment plant. Treatment plants.

Open Evothings