Definition

1. Noun:
   • Waste, refuse, residue: "Phế thải" refers to discarded materials, substances, or by-products that are no longer useful or wanted after a primary process. It emphasizes the state of being discarded or rejected.
   • Scrap, waste material: It can also denote specific waste materials, often industrial or manufacturing leftovers.

Usage Examples

• Noun:
  • Nhà máy này có hệ thống xử lý chất phế thải rất hiện đại. (This factory has a very modern waste treatment system.)
  • Việc tái chế phế thải nhựa là rất quan trọng để bảo vệ môi trường. (Recycling plastic waste is very important for environmental protection.)
  • Khu vực này bị ô nhiễm do phế thải công nghiệp. (This area is polluted by industrial waste.)

Advanced Usage

• "Chất phế thải": This is a very common compound noun meaning "waste substance/material." While "phế thải" alone can be used, it is often part of this specific term.
  • Cần phân loại các chất phế thải nguy hại. (Hazardous waste materials need to be classified.)

Variants and Related Words

• Phế liệu (Noun): Scrap, recyclable waste. This word often implies the waste has potential value for recycling or reuse, whereas "phế thải" has a stronger connotation of being useless discard.
  • Thu mua phế liệu sắt. (Buying iron scrap.)
• Rác thải (Noun): Garbage, trash, waste. This is a more general and common term for everyday waste and refuse.
  • Đổ rác thải đúng nơi quy định. (Dispose of garbage in the designated place.)
• Chất thải (Noun): Waste, effluent. A general term for waste substances, often used in technical/ environmental contexts.
  • Chất thải rắn. (Solid waste.)

Synonyms

• Rác: Rubbish, garbage (more colloquial for general trash).
• Đồ bỏ đi: Discarded items/things.
• Tàn dư: Residue, remnant (often used in different contexts like history or chemistry).

Notes on Meaning

• The core meaning of "phế thải" revolves around the concept of being discarded and useless. It is frequently used in formal, technical, or environmental contexts to discuss waste management, pollution, and industrial by-products.
• It is less commonly used for everyday household trash ("rác") and more for process-related or bulk waste.

1. Waste
   • Chất phế thải
     Refuse