https://padlet.com/nguyenjt18/ojnv70dj14ks en-us 2017-11-15 04:04:30 UTC 2023-02-08 06:36:18 UTC hello@padlet.com nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048260 2017-11-15 04:16:41 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048260 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048445 2017-11-15 04:18:01 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048445 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048446 2017-11-15 04:18:01 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048446 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048451 2017-11-15 04:18:05 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048451 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048457 2017-11-15 04:18:06 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048457 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048461 2017-11-15 04:18:08 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207048461 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049346 A net was placed over the grit chamber beaker and the wastewater was poured into it. This represents the first step of the water treatment, as wastewater initially goes through a screen to prep for grit removal.]]> 2017-11-15 04:24:36 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049346 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049487 The mixture is stirred and some heavy solids from the wastewater collects on the bottom. This represents the second step of the water treatment process. The grit beaker represents the grit chamber where all of the heavy grit (soil, sand, stones, etc.) is sunken to the bottom and removed.]]> 2017-11-15 04:25:40 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049487 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049538 Wool is wrapped around a spoon to represent a scraper. The scraper takes away surface leaves and a layer of oil. This represents the third step of the primary settling process where sludge is formed at the bottom of the tank. ]]> 2017-11-15 04:25:55 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049538 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049601 The mixture of dry sand is added. This represents the fourth step of wastewater treatment where a mixture of tiny organisms are added to feed on the dissolved nutrients of wastewater.]]> 2017-11-15 04:26:39 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049601 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049667 The mixture is poured into the SST beaker and stands for one minute. Some clusters of the dry sand sink to the bottom. This represents the secondary sludge of the secondary settling process.]]> 2017-11-15 04:27:19 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049667 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049683 Bleach is added into the beaker. This represents the added chemical to the water at the end of the process that kills micro-organisms that may linger.]]> 2017-11-15 04:27:31 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207049683 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207054490 Finally, the water from the disinfected beaker was poured out to represent water being "discharged" or put back into nature, typically rivers,  to return to the natural water cycle.]]> 2017-11-15 04:59:07 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207054490 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207054919 2017-11-15 05:04:01 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207054919 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055052 2017-11-15 05:05:34 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055052 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055288 2017-11-15 05:07:47 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055288 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055463 2017-11-15 05:09:12 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055463 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055580 2017-11-15 05:10:21 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055580 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055870 2017-11-15 05:13:15 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207055870 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056030 2017-11-15 05:14:00 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056030 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056074 2017-11-15 05:14:23 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056074 nguyenjt18 https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056153 2017-11-15 05:15:17 UTC https://padlet.com/nguyenjt18/ojnv70dj14ks/wish/207056153