https://youtu.be/pcSsOE-F4e8

*** 02 -** Excursion to wastewater treatment plant.

https://youtu.be/QyEa5Uc-31Y

https://youtu.be/U8ZgVVwrGNU

*** 05 -** What should be removed.

https://youtu.be/gMK3cxd47SQ

*** 04 -** Wastewater characteristics.

https://youtu.be/X12HAebmi8w

https://youtu.be/pHwp7aPLZSY