leaching

Thân thiện

The farmer observes the leaching of nutrients from the soil after heavy rain.

Definition

1. Noun:
   • The process of leaching: The action or process by which a soluble substance is washed out or dissolved from a solid material (such as soil, ore, or ash) by the percolation of a liquid, especially water.

Usage

• As a subject: "Leaching" describes the natural or artificial process itself.
• In technical contexts: Commonly used in environmental science, agriculture, geology, and chemistry to describe the removal of minerals, nutrients, or contaminants.

Examples

• Noun:
  • The leaching of nitrates from farmland can contaminate groundwater.
  • Acid rain accelerates the leaching of minerals from the soil.
  • The mining process involves the leaching of metals from the ore using a chemical solution.

Advanced Usage

• "In-situ leaching": A mining process where a leaching solution is pumped into a deposit to dissolve minerals, which are then pumped to the surface.
  • In-situ leaching is often used for uranium extraction.
• "Selective leaching": A corrosion process where one element is preferentially removed from an alloy.
  • The dezincification of brass is a common example of selective leaching.

Variants and Related Words

• Leach (verb): To lose or cause a substance to be removed by the process of leaching.
  • Fertilizers can leach into rivers.
  • The heavy rains leached nutrients from the topsoil.
• Leachate (noun): The liquid that has percolated through a solid and leached out some of its constituents.
  • The landfill must manage its toxic leachate.

Synonyms

• Extraction: The action of taking out something, especially using effort or force. (More general; leaching is a specific type of extraction using a liquid.)
• Percolation: The process of a liquid moving slowly through a porous substance. (Describes the movement; leaching is the combined process of percolation and dissolution.)
• Eluviation: The lateral or downward movement of dissolved or suspended material within soil. (A specific geological/soil science term.)

Related Phrases

• "Leach out" (phrasal verb): To be removed by the process of leaching.
  • Over time, the salts will leach out of the bricks.
• "Leach away" (phrasal verb): To be gradually removed or lost by leaching.
  • The soil's fertility leached away after years of intensive farming.

Học thuật

Noun

1. the process of leaching

Từ đồng nghĩa

• leach