Our linked subjects are (1) the historical process by which the meaning …
Our linked subjects are (1) the historical process by which the meaning of technology has been constructed, and (2) the concurrent transformation of the environment. To explain the emergence of technology as a pivotal word (and concept) in contemporary public discourse, we will examine responses--chiefly political and literary--to the development of the mechanic arts, and to the linked social, cultural, and ecological transformation of 19th- and 20th-century American society, culture, and landscape.
Prior to reaching households, water is exposed to a variety of treatments …
Prior to reaching households, water is exposed to a variety of treatments designed to render it fit for human consumption and use. One of the first treatment steps is the removal of suspended solids using chemical additives called flocculants. In this activity, students learn about two commonly used flocculants and clean water collected from a local pond or river. They experiment with flocculant, stirring and pH variables.
Student teams investigate the migration of small-particle plastic pollution by exposing invertebrates …
Student teams investigate the migration of small-particle plastic pollution by exposing invertebrates found in water samples from a local lake or river to fluorescent bead fragments in a controlled environment of their own designs. Students begin by reviewing the composition of food webs and considering the ethics of studies on live organisms. In their model microcosms, they set up a food web so as to trace the microbead migration from one invertebrate species to another. Students use blacklights and microscopes to observe and quantify their experimental results. They develop diagrams that explain their investigations—modeling the ecological impacts of microplastics.
Focuses on the geotechnical aspects of hazardous waste management, with specific emphasis …
Focuses on the geotechnical aspects of hazardous waste management, with specific emphasis on the design of land-based waste containment structures and hazardous waste remediation. Introduction to hazardous waste; definition of hazardous waste, regulatory requirements, waste characteristics, geo-chemistry, and contaminant transport. The design and operation of waste containment structures, landfills, impoundments, and mine-waste disposal. The characterization and remediation of contaminated sites, the superfund law, preliminary site assessment, site investigation techniques, and remediation technologies. Monitoring requirements.
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