1/1/2024 0 Comments Carbon neutral fuelsThe particles-called fly ash-are then mixed with the ash that is removed from the bottom of the waste-to-energy furnace.Ī waste-to-energy furnace burns at high temperatures (1,800☏ to 2,000☏), which break down the chemicals in MSW into simpler, less harmful compounds. Fabric filters and electrostatic precipitators also remove particles from the combustion gases. Scrubbers clean emissions from waste-to-energy facilities by spraying a liquid into the combustion gases to neutralize the acids present in the stream of emissions. Environmental Protection Agency (EPA) applies strict environmental rules to waste-to-energy plants, which require waste-to-energy plants to use air pollution control devices such as scrubbers, fabric filters, and electrostatic precipitators to capture air pollutants. Some of these chemicals, which are mostly related to the combustion of non-biomass materials in garbage, can be hazardous to people and the environment if they are not properly controlled. On the other hand, burning garbage produces air pollution and releases the chemicals and substances in the waste into the air. Source: Wikimedia Commons (public domain) Burning municipal solid waste (MSW) or wood wasteīurning municipal solid waste (MSW), or garbage, in waste-to-energy plants could result in less waste buried in landfills. Switchgrass growing on a test plot for biomass production Planting fast-growing trees for fuel and using fuel-efficient cooking stoves can help slow deforestation and improve the environment. Wood and charcoal are major cooking and heating fuels in poor countries, but if people harvest the wood faster than trees can grow, it causes deforestation. Modern wood-burning stoves, pellet stoves, and fireplace inserts can reduce the amount of particulates from burning wood. Wood smoke contains harmful pollutants such as carbon monoxide and particulate matter. Wood can be harvested from forests, from woodlots that have to be thinned, or from urban trees that fall down or have to be cut down. Using wood, wood pellets, and charcoal for heating and cooking can replace fossil fuels and may result in lower CO 2 emissions overall. However, the plants that are the source of biomass for energy capture almost the same amount of CO 2 through photosynthesis while growing as is released when biomass is burned, which can make biomass a carbon-neutral energy source. Burning either fossil fuels or biomass releases carbon dioxide (CO 2), a greenhouse gas. Using biomass for energy has positive and negative effectsīiomass and biofuels made from biomass are alternative energy sources to fossil fuels-coal, petroleum, and natural gas.
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