Zero Bacteria Technology

Source:  DH

Context: Bangalore Water Supply and Sewerage Board (BWSSB) is considering implementing Zero Bacteria technology in apartment Sewage Treatment Plants (STPs) to improve water quality.

About Zero Bacteria Technology:

  • What is Zero Bacteria Technology?
    • A water purification technology that eliminates bacterial contamination from water sources.
    • Uses nanoparticle coatings, ultraviolet (UV) irradiation, electrostatic filtration, and specialized filtration systems.
  • Developed by: Indian Institute of Science (IISc), Bengaluru.
  • How It Works?
    • Nanoparticle Coatings: Silver nanoparticles disrupt bacterial cell membranes, causing cell death.
    • UV Light Irradiation: Destroys bacterial DNA, preventing replication.
    • Electrostatic Filtration: High-voltage filters attract and trap bacteria.
    • Specialized Filtration Systems: Removes bacteria using fine-pore filters, sometimes infused with antimicrobial agents.
  • Key Features:
    • Advanced bacterial elimination for high-quality treated water.
    • Energy-efficient and sustainable solution for wastewater treatment.
    • Reduces environmental contamination and enhances water reuse.
    • Non-toxic and safe when used in controlled applications.