https://padlet.com/teipelmj18/8z91pkszsh16 Seven Stages of Wastewater Treatment - Lab en-us 2017-11-15 23:48:21 UTC 2025-06-09 14:14:46 UTC hello@padlet.com teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207478225 We used this step in the lab to represent the first real life step in Wastewater Treatment - removal of large solid wastes. We used tea bag clippings, tea leaves, rocks, and other larger objects to represent objects we would see being removed from the wastewater like diapers an other objects that end up in the water.]]> 2017-11-15 23:51:03 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207478225 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207480565 This shows the first step in Wastewater Treatment in real life - Screening. Large objects that make it's way into the water get caught in this screen and get removed from the wastewater. They are removed so they don't cause damage to the pipes.]]> 2017-11-16 00:06:27 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207480565 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207481415 In step two (Grit Removal), we poured the contents from the Grit Chamber into the PST beaker. We did this step to remove solid wastes even further than step one. We were careful to leave all grit behind and leave the mixture in the PST beaker for 1 minute. This step was to represent the Grit Removal step in real life, which removes all grit from the wastewater.]]> 2017-11-16 00:12:46 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207481415 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207484270 This picture shows how Wastewater Treatment plants remove grit from wastewater in real life. This a Vortex Grit Remover.]]> 2017-11-16 00:32:46 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207484270 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207486815 In step three (Primary Settling), we used a plastic spoon with a cotton ball and a piece of panty hose secured with a rubber band to represent the scraper that removes the oil and debris from the wastewater. ]]> 2017-11-16 00:47:11 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207486815 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207487617 In this part of the step, we used our finger to collect the left over debris in the PST beaker.]]> 2017-11-16 00:52:21 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207487617 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207490647 These are Settling tanks at a Wastewater Treatment plant, which reduces the velocity of wastewater flow allowing raw sludge to settle.]]> 2017-11-16 01:11:12 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207490647 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207496999 In this step, we added fine sand and ENO's into the Bioreactor beaker to break down anything left in the water which relates to the real life Biological treatment step by representing the break down of bacteria.]]> 2017-11-16 01:47:01 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207496999 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207498658 Biological Treatment in real life consists of removing microorganisms and bacteria that could potentially harm humans if consumed.]]> 2017-11-16 01:56:59 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207498658 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207500387 For this procedure, we let the SST mixture sit for a minute and observed any changes that were produced within the water. This step in the lab represents the real life step in Secondary Settling/Treatment by trying to separate the "brown sludge" and the water in the beaker.]]> 2017-11-16 02:09:00 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207500387 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207500741 The water in this tank is being separated into clear water and brown sludge that layers on the bottom.]]> 2017-11-16 02:12:10 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207500741 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207502270 In this step, we added two teaspoons of bleach to our water to further disinfect the wastewater. We used this step to represent the tiny organisms being killed by adding chlorine gas to the water.]]> 2017-11-16 02:23:56 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207502270 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207503884 This picture shows how wastewater is disinfected in real life, getting rid of all tiny organisms still present in the water.]]> 2017-11-16 02:35:56 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207503884 teipelmj18 https://padlet.com/teipelmj18/8z91pkszsh16/wish/207505331 After being disinfected, the water is released back into a river to return it to the natural water cycle. I don't believe we officially preformed this step in our lab but the closest to it would be pouring the finished product down the drain.]]> 2017-11-16 02:43:48 UTC https://padlet.com/teipelmj18/8z91pkszsh16/wish/207505331