The Historical Development of Wastewater Treatment Technologies

Sayiter YILDIZ, Osman Önder NAMAL, Mehmet ÇEKİM


Human beings have tried to remove their wastes from their habitat since the first years of
mankind. In the progressive years it was realized that the problem had not been solved by removing
these wastes only from the living spaces. Because these wastes were continuing to pollute the utilized
sources (like soil and water). Thus, the awareness regarding the requirement of the waste water having
to be discharged without polluting the receiving ambient has been established and this has paved the
way for the treatment concept. Process mechanism which has started with natural treatment has
continued with physical purification, activated sludge system, anaerobic digestion, membrane systems
and advanced oxidation processes. Today discharge of treated waste water into the receiving ambient is
enabled by selecting the most appropriate treatment technology in accordance with the characteristic
properties of the waste water and existent location. On the one hand, waste disposal without harming
the environment is enabled on the other hand seeking out more efficient and cost effective systems is
being carried on.


Wastewater; wastewater treatment; activated sludge; advanced treatment

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