Solid Waste Disposal - AP Environmental Science

Produces biogas and reduces waste volume. Oxygen-free breakdown produces methane and reduces organic matter volume.

Reduce, Reuse, Recycle. Waste hierarchy prioritizing prevention over disposal.

To minimize environmental impact and conserve resources. Balances environmental protection with economic efficiency.

Recycling conserves resources and reduces landfill waste. Reprocessing materials saves raw materials and energy.

Incineration can release toxic pollutants. High-temperature burning can create dioxins and heavy metals.

Composting is the decomposition of organic waste into humus. Aerobic breakdown creates nutrient-rich soil amendment.

Paper is the main component by weight. Paper products make up the largest portion of MSW by mass.

To prevent contamination of groundwater. Impermeable barrier protects soil and groundwater from leachate.

Plastic is not biodegradable. Synthetic polymers persist in environment for hundreds of years.

It may contain toxic substances. Bottom ash concentrates heavy metals and persistent pollutants.

It can cause eutrophication in water bodies. Nitrogen and phosphorus promote excessive algae growth.

Batteries are a common hazardous waste. Contains heavy metals and corrosive chemicals requiring special handling.

To evaluate potential impacts of waste facilities. Predicts environmental consequences before facility construction.

To manage hazardous and non-hazardous solid waste. RCRA provides cradle-to-grave waste management framework.

They decompose more quickly than conventional plastics. Engineered to break down faster under environmental conditions.

It is persistent and difficult to degrade. Non-biodegradable polymers accumulate in ecosystems indefinitely.

To consolidate waste for efficient transport. Central collection point reduces transportation costs and distances.

Capturing and using methane from landfills for energy. Converts landfill methane into renewable electricity or heat.

It can release toxic substances into the environment. Heavy metals and toxins contaminate soil and water systems.

To prevent water infiltration and control gas emissions. Final cover system isolates waste from environment permanently.

They pose health and environmental hazards. Uncontrolled sites allow contamination and disease vectors.

Non-hazardous solid waste. Only non-toxic waste allowed in engineered disposal sites.

Materials that can decompose naturally. Broken down by natural biological processes over time.

They generate energy from waste. Converts waste heat into electricity while reducing landfill volume.

Incineration or chemical treatment. High-temperature destruction or chemical stabilization neutralizes toxins.

Source reduction is reducing waste generation at the source. Prevents waste creation through design and consumption changes.

Chemical neutralization. Acids and bases react to form stable, less dangerous compounds.

Methane is primarily emitted. Organic decomposition in anaerobic conditions produces methane gas.

Methane contributes to global warming. Methane is a potent greenhouse gas, 25x stronger than $CO_2$.