Compare and contrast the current methods for treating

Question

Environmental Health

• Compare and contrast the current methods for treating sewage from those that were used in the Middle Ages? Historically speaking, what factors spurred the development of today's sanitary sewage systems?
• Describe the stages for processing sewage. At what stage of processing is it permissible in the United States to dispose of wastewater from sewage into waterways?
• What health-related considerations relate to the use of recycled water? What level of processing is required for wastewater to be recycled? Describe some of the uses of recycled water.
• Even though workers in professional occupations usually are not exposed directly to hazardous agents, they are prone to occupationally associated illnesses. What types of hazards and associated illnesses predominate in professional occupations? What interventions would you propose to mitigate these hazards?