http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_enveng/cub_enveng_lesson05.xmllessontext/xmlIntegrated Teaching and Learning Program, environmental engineergarbagegroundwater pollutionlandfillleachatepermeabilityplumepollutionporositysanitary landfillsoiltrashwaste leachatesanitary landfillpermeabilityporosityclaysandbedrockwater table

Waste disposal has been an ongoing societal problem since medieval times. In this lesson, students learn about the three methods of waste disposal in use by modern communities. They also investigate how engineers design sanitary landfills to prevent leachate from polluting the underlining groundwater.

Engineers develop creative technologies to dispose of the enormous amount of trash produced in the U.S. They design sanitary landfills to prevent groundwater, soil and air pollution. Sanitary landfills have liners to keep contaminants from leaking into underlying groundwater, leachate collection systems that collect and treat the precipitation coming off of the garbage, and capping systems that keep the landfill from releasing harmful gases into the air. Describe advances in waste disposal from a historical context to modern times.Explain how landfills can pollute groundwater. Describe national regulations involved in sanitary landfill design. Explain how engineers are involved in the design of sanitary landfills. 50TeachEngineering.orgMalinda Schaefer ZarskeJanet YowellMelissa Stratenhttp://www.erefdn.org/educationact1/activity1onpdf.htmhttp://www.oldbaileyonline.org/history/london-life/http://www.epa.gov/superfund/students/clas_act/haz-ed/ff06.pdfhttp://www.atsdr.cdc.gov/HAC/PHA/freshkills/fkl_p1.htmlhttp://www.victorianlondon.org/publications/sanitary-1.htmS1141718International_Technology_Education_Association-ITEA_STL_StandardsTechnologyE. Technologies can be used to repair damage caused by natural disasters and to break down waste from the use of various products and systems. 68S11425ABColoradoSciencec. Identify problems, and propose solutions related to water quality, circulation, and distribution - both locally and worldwide 66S11425ABColoradoSciencec. Identify problems, and propose solutions related to water quality, circulation, and distribution - both locally and worldwide 66United StatesCopyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulderhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2011-01-286Teacher