What methods were used by ancient civilizations to treat water before the advent of modern mechanical filters?
Answer
Boiling or filtering water through cloth, sand, or porous stones
Before the development of modern synthetic membranes and mechanical filtration, ancient societies relied on basic physical and thermal processes to ensure water safety. These methods included boiling the water, which uses heat to kill pathogens, or passing water through layers of cloth, sand, or porous stone to physically remove visible sediment and some impurities. These early efforts established the foundational understanding of the need for purification, though they lacked the portability and efficiency of modern micro-filtration devices.
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