https://padlet.com/thompsei19/p3y8y0be5w7q APES P4, Elaysia Thompson en-us 2017-11-14 22:52:00 UTC 2026-05-02 00:50:49 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Brightnessdown.png thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207002235 In the lab, the wastewater we made consisted of water (water compound), tea and crushed leaves (fine human solids), cut up tea bags (large objects), small stones (grit), cooking oil ( oils), and sugar (dissolved nutrients).]]> 2017-11-14 23:13:01 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207002235 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207003191 In real life, wastewater is collected and cleaned to dispose of dangerous chemicals that threaten animals (humans included), and to protect the systems that make actually make the water dischargabale]]> 2017-11-14 23:19:44 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207003191 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207005763 We placed a piece of plastic mesh on top of the beaker labeled “grit chamber) and used the mesh to catch the large soldis (rocks)]]> 2017-11-14 23:37:11 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207005763 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207199062 Wastewater passes through metal bars to remove large objects that should not have been flushed such as bags, papers and rags to avoid damaging the cleaning objects in the process of working towards discharging. The large objects are removed and placed in a landfill.]]> 2017-11-15 14:22:02 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207199062 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207205860 We spun the wastewater to see what would be left at the bottom and as we spun we observed the objects that sank to the bottom (sludge). We then proceeded to take the mixture and pour it into the beaker labeled “primary settling” ]]> 2017-11-15 14:32:07 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207205860 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207209091 Following the screening process, water slows down and is spun in order for the stones and objects like that to be removed and not damages the systems. Post-removal, the stones are buried in a land fill]]> 2017-11-15 14:37:01 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207209091 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207212126 During primary settling, the wastewater sat in order to let the lighter particles (oil and tea leaves) float to the top, later to be removed by an absorbent scooper. At the bottom, the settling is called sludge and is removed later and put in the sludge tank. ]]> 2017-11-15 14:41:09 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207212126 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207433246  The wastewater is slowly moved along, allowing the oils and lighter objects to rise to the top and the heavier solids to move to the bottom and then scraped off using automatic scrapers]]> 2017-11-15 20:36:04 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207433246 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207443057 The mixture of sand and fine particles were added, mixed, settled, and then poured into the secondary settling tank]]> 2017-11-15 21:02:45 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207443057 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207483309 Bacteria and other fine living organisms are placed in the water to eat up the particles the human eye can not see that can be harmful to other organisms. Carbon, nitrogen, and phosphorus are removed. ]]> 2017-11-16 00:27:14 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207483309 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207483866 Much like real life water is left to sit and the left over particles sink to the bottom and removed as secondary sludge, and put in a sludge tank or dried out. The water is then moved on to disinfection areas]]> 2017-11-16 00:30:29 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207483866 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207509057 Organisms are placed in the water, and eat what they need to, causing the left over particles to turn into solid clumps and sink, and are then removed as secondary sludge and used as fertilizer]]> 2017-11-16 03:12:03 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207509057 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207510531 Bleach is poured into the left over water to clean and sterilize it, further making it safe for discharge, which is comparable in real life cleaning systems, chlorine or uv light is used to kill any left over bacteria. ]]> 2017-11-16 03:23:03 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207510531 thompsei19 https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207511568 After being sterilized, water is then let back out into the ocean, or commons. In the lab, the clean water was put down the sink. ]]> 2017-11-16 03:30:10 UTC https://padlet.com/thompsei19/p3y8y0be5w7q/wish/207511568