Podcast
Questions and Answers
What is the primary goal of waste transformation processes?
What is the primary goal of waste transformation processes?
- To dispose of waste
- To improve efficiency of SWM systems (correct)
- To recover reusable and recyclable materials
- To reduce waste volume
Incineration is a controlled combustion process for burning SWM with no environmental concerns.
Incineration is a controlled combustion process for burning SWM with no environmental concerns.
False (B)
What are the problematic components of incineration?
What are the problematic components of incineration?
Particulate dust, sulphur and nitrogen oxides, chlorine compounds, hydrocarbons
The heat value of typical MSW is approximately __________ kcal/kg.
The heat value of typical MSW is approximately __________ kcal/kg.
What is the primary difference between waste incineration and other combustion systems?
What is the primary difference between waste incineration and other combustion systems?
Composting is a biological transformation process that requires oxygen.
Composting is a biological transformation process that requires oxygen.
Match the following waste transformation processes with their characteristics:
Match the following waste transformation processes with their characteristics:
What is the importance of waste transformation in SWM systems?
What is the importance of waste transformation in SWM systems?
The primary goal of waste processing and recovery is to ______________________.
The primary goal of waste processing and recovery is to ______________________.
What is the management strategy for MSW that involves controlled combustion process for burning SWM?
What is the management strategy for MSW that involves controlled combustion process for burning SWM?
Study Notes
Hazardous and Non-Hazardous Waste
- Hazardous waste characteristics: Corrosivity, Flammability, Reactivity, Toxicity
- Categories of hazardous waste: Chemicals, Biological, Radioactive, Explosives
Municipal Solid Waste (MSW) Generation in India
- State-wise daily MSW generation: 20000 tons per day (TPD)
- MSW generation in India: 2000 data from Central Pollution Control Board (CPCB)
Functional Elements of MSW Management
- Generation
- Storage
- Collection
- Transportation
- Processing and Recovery
- Disposal
Collection and Transportation
- Major budgetary expenditure of municipal operations: Contracting of maintenance, equipment, and vehicle fleet
- Emerging management strategies: Service contracts for waste collection and transportation, long-term concession projects for resource recovery
Segregation of Household Waste
- Basic segregation: Wet waste (green bin), Dry waste (blue bin), Domestic hazardous waste
- Further sub-segregation: Food waste, Paper, Cardboard, Glass, Metals, E-waste, etc.
Potential for MSW Composting
- Important criteria for evaluating system performance: Product quality, percent rejects, and recycling rate
- Limitations of MSW composting: Lack of markets for the finished product, small reduction in total refuse content/volume requiring disposal, environmental factors
Conventional Dumping and Sanitary Landfills
- Conventional dumping: Uncontrolled dumping of waste
- Sanitary landfills: Engineered landfills with controlled dumping and monitoring
Post-Closure Care and Use of Old Landfills
- Final use alternatives: Golf courses, natural parks, solar landfills, ski slopes, parking lots
Legislation and Waste Management Policies
- Timeline chart of waste management policies and activities in India
Waste Transformation Processes
- Properties of solid waste: Transformation processes, importance of transformation
- Transformation processes: Physical, chemical, biological
- Importance of transformation: Improve efficiency of SWM systems, recover reusable and recyclable materials, recover conversion products and energy
Processing and Recovery of MSW
- Energy recovery from SW
- Processing and recovery: Management strategies, incineration/pyrolysis, composting
- Incineration: Controlled combustion process for burning SWM, heat value of typical MSW, problematic components of incineration
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Description
This quiz covers the characteristics of hazardous and non-hazardous waste, including corrosivity, flammability, and reactivity. It's a great resource for students studying environmental engineering and technology.
