Question

Water pollution can be decreased by treating industrial wastes to yield safe effluents.

• A. True
• B. False

Answer 1

The correct option is A True

Water pollution can be decreased by treating industrial wastes to yield safe effluents.

• Recycling, Renovation, Recharge and Reuse (4R concept) of waste water:
  

The waste water consisting of domestic sewage industrial effluents, thermal and radioactive pollutants receive some sort of treatment before mixing into water bodies. Urban sewage and sludge, etc, may be recycled and reused to generate cheaper fuel, gas and electricity.

• Cooling methods:
  

For preventing thermal pollution such methods are used like cooling waste water effluent, evaporation tower, cooling ponds, dry cooling towers, wet cooling towers etc.

• Using chemical methods:
  

Several chemical methods have been devised for the treatment of industrial effluents before discharging them in water bodies.

Therefore, the correct answer is option A.