https://padlet.com/200260581/jrij3haqpdhf9fts sequence of both potable and wastewater treatment unit processes and underlying mechanism, what they serve to remove en-us 2021-10-28 04:29:33 UTC 2026-01-17 07:37:17 UTC hello@padlet.com 20021302 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850380216 Unit process: Screening
Underlying mechanism: sieving
Removes debris and sandy material]]> 2021-10-28 05:08:54 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850380216 200260581 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850383592 2021-10-28 05:10:49 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850383592 200260581 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850384121 2021-10-28 05:11:06 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850384121 20021302 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850391841 Unit process: Sedimentation
Underlying mechanism: Gravity
Solids settled at the bottom are collected and combined with the scum and greasy materials that float on the surface of the water]]> 2021-10-28 05:15:12 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850391841 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850392829 It filters large debris (greater than 1mm) such as sticks, leaves and trash through bar screen and grit chamber.]]> 2021-10-28 05:15:46 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850392829 20011561_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850397100 Take place in clarifier/ sedimentation tank
Particles combine into larger clumped particles that
settle to the bottom of the tank and are removed.
 Uses Gravity and it happens in the sedimentation tank.]]> 2021-10-28 05:18:16 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850397100 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850401854 2021-10-28 05:21:14 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850401854 20021302 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850403945 Unit process: Aeration
Underlying mechanism: Biodegradation
Removes dissolved gases, organic matter and oxidizes dissolved metals in the wastewater.]]> 2021-10-28 05:22:31 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850403945 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850404761 Take place in the slow and rapid sand filter
The water pass through rapid sand filter to removes the finer residual particles of up to0.02 microns]]> 2021-10-28 05:23:01 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850404761 20011561_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850406625 Take place in coagulation tank and flocculation tank
Coagulants and coagulant-aids are added to bind or “flocculate” smaller suspended matter
and particles, such as silt and sand, to form larger and heavier
clumps.]]> 2021-10-28 05:24:10 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850406625 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850414851 Take place in the treated water tank
Chlorine and ozone  is used to destroy the bacteria and viruses


]]> 2021-10-28 05:29:16 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850414851 20011561_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850419793 Granular activated carbon filters remove natural organic matter, making the water biologically-stable. It principle is adsorption. It takes place in the granular activated carbon adsorption tan ]]> 2021-10-28 05:32:11 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850419793 20021302 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850424516 Unit process: Filtration
Underlying mechanism: Straining
Removes nutrients (nitrogen and phosphorus) and other suspended solids.]]> 2021-10-28 05:35:36 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850424516 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850431958 Take place in the treated water pump
Hydrated lime is added to adjust the pH
Chlorines and ammonia is added to maintain the water quality
Fluoride is added to prevent tooth decay]]> 2021-10-28 05:40:24 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850431958 20006270_2 https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850440602 Water is stored in clear water tank before pumping to the service reservoirs for distribution to customers. ]]> 2021-10-28 05:46:01 UTC https://padlet.com/200260581/jrij3haqpdhf9fts/wish/1850440602