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11 Nov 2019
Assessment 2, Part 2, CENE 332 1. A small pharmaceutical company in New Jersey manufactured chrysene for many years. It was discovered that water in a nearby city well contained 1 ug/L chrysene. likely concentration of the chemical (in ug/g) in the clayey soil (foc-0.05) of this area? 2. A chemical plant has a spill of liquid carbon disulfide (CS). The carbon disulfide concentration in the liquid was 1500 mg/L. What is the equilibrium concentration (in atm) of carbon disulfide in air at this spill? Show all potential release mechanisms to air, water and subsurface for the following situation: A leaking underground storage tank (LUST) removal action. The actual digging up of a LUST, its removal plus the removal of associated contaminated soil. Show all potential release mechanisms to air, water and subsurface for the following situation: A waste to energy facility that uses MSW as feed. 5. The Henry's constant for hexachloroethane is 8.1e-3 atm/(mol/m'). If the concentration of hexachloroethane in water is 1250 mg/L, what is its equilibrium concentration in air (in atm)? 6. The pesticide Chlordane has a BCF of 14000 L/kg. If a fish has a body burden of 2 ug/ Chlordane, what is the equilibrium concentration in the water in which the fish is swimming (in ug/L)?
Assessment 2, Part 2, CENE 332 1. A small pharmaceutical company in New Jersey manufactured chrysene for many years. It was discovered that water in a nearby city well contained 1 ug/L chrysene. likely concentration of the chemical (in ug/g) in the clayey soil (foc-0.05) of this area? 2. A chemical plant has a spill of liquid carbon disulfide (CS). The carbon disulfide concentration in the liquid was 1500 mg/L. What is the equilibrium concentration (in atm) of carbon disulfide in air at this spill? Show all potential release mechanisms to air, water and subsurface for the following situation: A leaking underground storage tank (LUST) removal action. The actual digging up of a LUST, its removal plus the removal of associated contaminated soil. Show all potential release mechanisms to air, water and subsurface for the following situation: A waste to energy facility that uses MSW as feed. 5. The Henry's constant for hexachloroethane is 8.1e-3 atm/(mol/m'). If the concentration of hexachloroethane in water is 1250 mg/L, what is its equilibrium concentration in air (in atm)? 6. The pesticide Chlordane has a BCF of 14000 L/kg. If a fish has a body burden of 2 ug/ Chlordane, what is the equilibrium concentration in the water in which the fish is swimming (in ug/L)?