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Questions and Answers
Which type of ash is light enough to travel with flue gas?
Which type of ash is light enough to travel with flue gas?
- Soot
- Bottom ash
- Slag
- Fly ash (correct)
What is the main difference between soot and ash?
What is the main difference between soot and ash?
- Soot is a liquid pollutant, while ash is a solid pollutant
- Soot contains carbon residue, while ash does not (correct)
- Soot is produced from wood-based fuels, while ash is produced from coal
- Soot is hazardous waste, while ash is not
What are the adverse health effects associated with particulate matter?
What are the adverse health effects associated with particulate matter?
- Liver damage, kidney failure, and neurological disorders
- Respiratory infections, skin rashes, and eye irritation
- Allergic reactions, arthritis, and diabetes
- Asthma, lung cancer, and cardiovascular diseases (correct)
Which type of fuel produces the highest percentage of ash by mass?
Which type of fuel produces the highest percentage of ash by mass?
What are the potential adverse effects of particulate matter on the environment?
What are the potential adverse effects of particulate matter on the environment?
What are the potential adverse health effects associated with particulate matter?
What are the potential adverse health effects associated with particulate matter?
Which method is the most efficient at removing particulate matter from flue gases?
Which method is the most efficient at removing particulate matter from flue gases?
What is the maximum dust-removal efficiency that can be achieved with fabric filters?
What is the maximum dust-removal efficiency that can be achieved with fabric filters?
What is the purpose of using fabric filters in modern plants?
What is the purpose of using fabric filters in modern plants?
Which method is the most efficient at removing particulate matter from flue gases?
Which method is the most efficient at removing particulate matter from flue gases?
What is the purpose of using fabric filters in modern plants?
What is the purpose of using fabric filters in modern plants?
What is the maximum dust-removal efficiency that can be achieved with fabric filters?
What is the maximum dust-removal efficiency that can be achieved with fabric filters?
Which of the following is NOT a potential use for ash?
Which of the following is NOT a potential use for ash?
What is a surface impoundment?
What is a surface impoundment?
What are some marketable byproducts created during flue gas desulfurization?
What are some marketable byproducts created during flue gas desulfurization?
Which of the following is NOT a potential use for coal-derived slag?
Which of the following is NOT a potential use for coal-derived slag?
What is the ultimate use of ash dependent on?
What is the ultimate use of ash dependent on?
What is the purpose of lining landfills and surface impoundments?
What is the purpose of lining landfills and surface impoundments?
Which method of disposal merely moves the hazard to another location?
Which method of disposal merely moves the hazard to another location?
What is the purpose of dewatering and sedimentation in physical treatment of liquid waste?
What is the purpose of dewatering and sedimentation in physical treatment of liquid waste?
What is the most effective and environmentally sound disposal method for a wider range of wastes, according to Environment and Climate Change Canada?
What is the most effective and environmentally sound disposal method for a wider range of wastes, according to Environment and Climate Change Canada?
Which method of disposal is considered a vast improvement over landfills, but still moves the hazard to another location?
Which method of disposal is considered a vast improvement over landfills, but still moves the hazard to another location?
What is the purpose of chemical treatment in liquid waste disposal?
What is the purpose of chemical treatment in liquid waste disposal?
What is the only certain way to destroy many organic materials in liquid waste?
What is the only certain way to destroy many organic materials in liquid waste?
Which method is effective at preventing thermal pollution?
Which method is effective at preventing thermal pollution?
What is the responsibility of the owner or operator regarding containment capacity?
What is the responsibility of the owner or operator regarding containment capacity?
What are some concerns associated with using cooling towers instead of cooling ponds?
What are some concerns associated with using cooling towers instead of cooling ponds?
Which government agencies provide guidelines for the containment capacity of berms?
Which government agencies provide guidelines for the containment capacity of berms?
What is the purpose of using cooling ponds in thermal pollution prevention?
What is the purpose of using cooling ponds in thermal pollution prevention?
What are some concerns associated with using cooling towers instead of cooling ponds?
What are some concerns associated with using cooling towers instead of cooling ponds?
What is the purpose of anaerobic digestion in the treatment of liquid waste?
What is the purpose of anaerobic digestion in the treatment of liquid waste?
What is the primary goal of thermal treatment in the disposal of liquid waste?
What is the primary goal of thermal treatment in the disposal of liquid waste?
What is the main purpose of physical treatment in the disposal of liquid waste?
What is the main purpose of physical treatment in the disposal of liquid waste?
Which treatment method is commonly used in wastewater and water treatment plants to change organic and inorganic compounds into less hazardous forms?
Which treatment method is commonly used in wastewater and water treatment plants to change organic and inorganic compounds into less hazardous forms?
Which treatment method reduces the amount of organic matter and the amount of waste in industrial effluent and wastewater with significant organic components?
Which treatment method reduces the amount of organic matter and the amount of waste in industrial effluent and wastewater with significant organic components?
Which treatment method is recognized as an effective and environmentally sound disposal method for a wider range of wastes, but may produce gaseous emissions that require further treatment?
Which treatment method is recognized as an effective and environmentally sound disposal method for a wider range of wastes, but may produce gaseous emissions that require further treatment?
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Study Notes
Ash and Particulate Matter
- Fly ash is light enough to travel with flue gas.
- The main difference between soot and ash is that ash is inorganic and non-combustible, whereas soot is organic and combustible.
- Particulate matter can cause adverse health effects, including respiratory problems and lung disease.
- Coal produces the highest percentage of ash by mass.
- Particulate matter can also have adverse effects on the environment, including acid rain and eutrophication.
Particulate Matter Removal
- Fabric filters are the most efficient method for removing particulate matter from flue gases, with a maximum dust-removal efficiency of 99.9%.
- The purpose of using fabric filters in modern plants is to remove particulate matter from flue gases.
Ash Uses and Disposal
- Ash can be used as a component in concrete, as a raw material for cement production, and as a soil amendment.
- Ash is not suitable for use as a fuel.
- Surface impoundments are used for ash disposal, and must be lined to prevent leakage.
- Marketable byproducts created during flue gas desulfurization include gypsum and sulfuric acid.
- Coal-derived slag is not suitable for use as a fuel or component in concrete.
Ash Disposal Methods
- Landfills and surface impoundments are common methods of ash disposal, but merely move the hazard to another location.
- Dewatering and sedimentation are physical treatment methods used for liquid waste disposal.
- Chemical treatment is used to destroy organic materials in liquid waste.
- Anaerobic digestion is used to treat liquid waste by breaking down organic matter.
- Thermal treatment is used to destroy organic matter and reduce waste volume.
Containment Capacity and Cooling Systems
- The owner or operator is responsible for ensuring containment capacity.
- Cooling towers and cooling ponds are used to prevent thermal pollution.
- Berms are used to contain waste, and government agencies provide guidelines for containment capacity.
- Anaerobic digestion is used to treat liquid waste in wastewater and water treatment plants.
Treatment Methods
- Physical treatment is used to remove contaminants and pollutants from liquid waste.
- Chemical treatment is used to change organic and inorganic compounds into less hazardous forms.
- Thermal treatment is used to reduce waste volume and destroy organic matter.
- Anaerobic digestion is recognized as an effective and environmentally sound disposal method for a wider range of wastes.
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Description
Test your knowledge on industrial waste and water treatment with this quiz! Learn about different categories of industrial waste, including organic and non-organic, solid, semi-solid, and liquid waste. Explore the concepts of hazardous and non-hazardous waste and discover how power engineers use water and chemicals to generate steam and prevent corrosion. Challenge yourself and become an expert in industrial waste management and water treatment processes.
