Frequent question: Which of the following gas is produced from landfill wastes?

Methane and carbon dioxide are the major gases produced by the bacterial decay of landfill waste (U.S. Environmental Protection Agency, 1991). Both are odorless. Other gases produced by landfill bacteria are called sulfides.

What does landfill waste produce?

But the vast quantities of landfill gasses from landfills cannot be so contained. Before any methane is burned, landfills produce almost as much raw carbon dioxide as methane. And after taking into account burned off methane, a typical landfill site produces thousands of tonnes of carbon dioxide per month.

What is landfill gas called?

Biogas is produced naturally by anaerobic bacteria in municipal solid waste landfills and is called landfill gas. Landfill gas with a high methane content can be dangerous to people and the environment because methane is flammable.

Which of the following gas is produced from landfill wastes Mcq?

18. Which of the following gas can be produced from landfill wastes? Answer: (a) Biogas.

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How is this gas produced out of wastes?

Most landfill gas is produced by bacterial decomposition, which occurs when organic waste is broken down by bacteria naturally present in the waste and in the soil used to cover the landfill. … Bacteria decompose organic waste in four phases, and the composition of the gas changes during each phase.

Which two main gases are produced from landfill gas or biogas?

The major components are CO2 and methane, both of which are greenhouse gas.

How is methane gas produced out of wastes?

Trash decomposes (or rots) in landfills, creating methane gas. Methane rises to the top of the landfill and is collected in pipes. The methane is burned to produce heat or generate electricity.

How much landfill gas is produced?

Per the most recent Inventory Report, U.S. landfills released an estimated 114.5 million metric tons of carbon dioxide equivalent (MMTCO2e) of methane into the atmosphere in 2019; this represents 17.4 percent of the total U.S. anthropogenic methane emissions across all sectors.

Which of the following is a biodegradable waste?

Like plastics, glasses, metals, organic waste, chemical waste etc. Biodegradable – Substances that are broken down by biological processes (with the help of some bacterias) are said to be biodegradable. Ex- paper, food products, cotton, cow dung, organic waste etc.

Which of the following is a biodegradable waste Mcq?

Which of the following is a biodegradable waste? Solution: Explanation: Polythene bags, synthetic fiber and paper are non biodegradable wastes whereas food waste is a biodegradable waste.

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Which of the following wastes is called the municipal solid waste?

Explanation: Rubbish, food waste and food waste are municipal solid waste, whereas radioactive substances are industrial waste.

What are the examples of gaseous waste?

Example of gaseous waste:

  • carbon dioxide,
  • methane,
  • chlorofluorocarbon,
  • oxides of nitrogen,
  • carbon monoxide.

Why does landfill produce methane?

Landfills emit methane when organic wastes such as food scraps, wood and paper decompose.

What consists of gaseous waste?

Gaseous wastes are oxides of carbon, sulphur dioxide, oxides of nitrogen, hydrocarbons, aerosols, carbon monoxide, methane, Green house gases like chlorofluorocarbon (CFC) etc. Due to the increase of factories, industrial areas and the number of vehicles, a large amount of gaseous wastes are coming to the atmosphere.