Waste-to-Energy Processes Quiz

Torrefaction Process

• Primary output is biochar, a charcoal-like substance used for energy storage and soil enhancement.

Circular Economy Principles

• Extending the lifespan of products is linked to the principle of "reducing waste through reuse and repair."

Waste-to-Energy Technologies

• Incineration involves burning biomass in the presence of oxygen to generate energy.

Linear Economy Model

• The primary objective is to maximize production and consumption, often leading to excessive waste generation.

Feedstock for Anaerobic Digestion

• Organic waste, including food scraps and agricultural residues, is commonly used as feedstock.

Conversion to Liquid Biocrude

• Pyrolysis is the process that converts organic materials into liquid biocrude through thermal decomposition without oxygen.

Mechanical Biological Treatment (MBT)

• Key objective in waste management is to reduce the volume of waste sent to landfills by extracting recyclable materials and stabilizing organic waste.

Gasification Process

• Materials with high moisture content, such as food waste, are least suitable for conversion through gasification.

Misconceptions about Circular Economy

• A common misconception is that the circular economy is solely about recycling, neglecting other important aspects like repair, reuse, and redesign.

High-Temperature Waste Treatment

• Plasma gasification involves high-temperature treatment of waste in the absence of oxygen to produce syngas and other by-products.

Environmental Benefit of Landfill Gas Conversion

• A significant benefit is the reduction of greenhouse gas emissions, as converting landfill gas to energy prevents methane from contributing to climate change.