Reference no: EM133436447
Questions
1. Name one environmental disaster that created outrage from the public and influenced environmental legislation and better waste management. Explain the hazard(s) that caused such concern. How did this event change the way pollution or waste is handled today? Please be specific.
2. What are the four chemical/ physical criteria that define hazardous waste? Explain what makes each of them hazardous. Please be specific.
3. Explain why analyzing the composition of MSW is important. Explain the difference between ultimate and proximate analysis. How is each done? Why is each important? Please be specific.
4. List two physical properties of MSW that are important considerations in waste management and explain why they each are important. Please be specific.
5. Explain two ways we can reduce toxicity of MSW and two ways we can reduce the quantity of MSW. Please be specific.
6. What is the difference between a "clean" and "dirty" materials recovery facility? How does each handle MSW? What are the advantages/disadvantages of having one over the other? Please be specific.
7. What two things must be considered when recycling? Why? Please be specific.
8. List and explain two ways that yard waste might be taken out of the MSW stream. Why is taking yard out of the MSW important? Please be specific.
9. List three important physical/ chemical considerations for complete aerobic composting to occur and explain how each contributes to the process of composting. How do composting facilities handle these? Please be specific.
10. List and explain two environmental concerns that need to be taken into consideration when operating a composting facility that are not concerns for a materials recovery facility (MRF) or recycling facility. Please be specific.
11. Describe one process used in incinerators that remove both acid gases and particles from incinerator vapors. How does this process work? Please be specific.
12. List four distinct environmental considerations that need to be taken for the proper siting and construction of a sanitary landfill. Why is each important? How are each addressed in the sanitary landfill? Please be specific.
13. Describe at least three different layers of a sanitary landfill (excluding the MSW itself) that are important in the construction and maintenance of a sanitary landfill and explain why each of these are important. What do they do and how? Please be specific.
14. List and describe two ways that the chemical/ physical characteristics of leachate from a closed sanitary landfill can change with time. Please be specific.
15. List two processes or treatments that are involved in the removal of suspended material from landfill leachate. Describe exactly how each of these remove the suspended material. Please be specific.
16. Explain three things that make a bioreactor landfill different from a sanitary landfill. Is a bioreactor better than a regular sanitary landfill? Why. Please be specific.