https://padlet.com/ramirezcindy10/k454egpxyiv5 This is a representation of waste water treatment utilizing images from the real world as well as images from a lab conducted in class. en-us 2017-11-15 01:06:06 UTC 2026-01-02 18:05:46 UTC hello@padlet.com ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207019780 Wastewater is a mixture of water and dirty waste. It is the  used water that goes down drains from places such as houses and schools. 
Wastewater goes to sewers that carry it to get treated. It is imperative that wastewater is treated because the waste found in the water is detrimental for the health of humans and it is harmful to the environment. 

]]> 2017-11-15 01:08:51 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207019780 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207023477 2017-11-15 01:30:47 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207023477 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207023663 2017-11-15 01:31:46 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207023663 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207024291 Screening is a process that is necessary to remove large objects from the water because they can damage pipes. The large objects that are removed are buried in landfills. 

In real life, the wastewater passes through metal bar screens that trap the large objects. Some of the large objects that are trapped include paper and plastic objects. In the lab, a small piece of plastic netting attached to a bottle with a rubber band acted as the screen that trapped the objects. The objects that were trapped by the simulation were rocks and small pieces of tea bags.  ]]> 2017-11-15 01:35:02 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207024291 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207025288 2017-11-15 01:41:16 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207025288 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207025702 2017-11-15 01:43:44 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207025702 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207026265 Grit removal is a process that removes stones, sand, and soil from the water. Removing the grit is important because it could damage the pipes. The grit that is removed is buried in landfills. 

In real life, the grit is removed in the grit chamber. In the grit chamber, the water is slowed down so that the grit can sink down to the bottom. In the lab, a spoon was used to quickly stir the mixture inside the beaker. The grit gathered at the bottom. ]]> 2017-11-15 01:47:17 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207026265 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207027893 2017-11-15 01:58:19 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207027893 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207028228 2017-11-15 02:00:10 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207028228 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207191204 In this step, primary sludge is removed from the water. Primary sludge is untreated human waste. 

In real life, the water flows slowly in large tanks. This allows the sludge to settle at the bottom of the tanks while the lighter substances, like oil, float to the top. In the lab a small piece of cotton wrapped in a small piece of pantyhose material was attached to a plastic spoon, this represented a scraper. The beaker was tilted to the side and the "scraper" scooped off the leaves and the oil.]]> 2017-11-15 14:10:44 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207191204 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474204 2017-11-15 23:20:23 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474204 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474407 2017-11-15 23:21:47 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474407 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474509 Biological treatment is a process that uses small organisms that remove the dissolved nutrients  such as nitrogen and carbon in wastewater. 

In real life, the process happens in tanks called bioreactors. Sometimes, the tiny organisms store some of the nutrients in themselves and turn them into carbon dioxide gas and nitrogen gas. In the lab, dry sand and ENO's were used to represent the tiny organisms. The sand, the ENO's and the water were mixed until there wasn't any more bubbling. ]]> 2017-11-15 23:22:31 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207474509 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476155 2017-11-15 23:34:33 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476155 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476558 2017-11-15 23:37:24 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476558 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476855 In real life, when the small organisms feed off of the nutrients, some of the germs from human waste cluster together. During secondary settling, the water inside the large tanks slows down so that the tiny clumps of organisms can sink to the bottom to form a brown sludge that is called secondary sludge. A clear layer of water is left at the top. In the lab, the S.S.T. stood on a flat surface for one minute. After the minute, the "sludge" sank to the bottom. ]]> 2017-11-15 23:39:34 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207476855 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207484718 2017-11-16 00:35:22 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207484718 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207485294 2017-11-16 00:38:14 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207485294 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207487510 Disinfection is the process that uses chemicals, such as chlorine, to kill tiny living organisms in the water. In real life, chlorine gas is added to the water in the disinfection tank. In the lab, 2 tablespoons of bleach were added to the water inside the beaker and it was stirred with a spoon. ]]> 2017-11-16 00:51:40 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207487510 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491394 2017-11-16 01:16:31 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491394 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491669 2017-11-16 01:18:09 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491669 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491868 After the water is disinfected, it gets put into a river so that it can return to the water cycle. In the lab, after the water was disinfected it was disposed in the sink. ]]> 2017-11-16 01:19:16 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207491868 ramirezcindy10 https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207492571 2017-11-16 01:23:23 UTC https://padlet.com/ramirezcindy10/k454egpxyiv5/wish/207492571