Question

treatment of major sources of water pollution

Answer 1

Some of the treatment are as follows:
Sewage Treatment

Sewage is SCREENED to remove large solid chunks, which are disposed in LANDFILL SITE. It flows over to the SETTLEMENT TANK to let the fine particles to settle. The settlement is called the activated SLUDGE. The supernatant is then PERCOLATING FILTERED and/or AERATED. The water can be filtered again, and then disinfected (chlorinated in most cases). When there is no other complication, the water is returned to nature back to the ecological cycle.

The SLUDGE removed from the settlement is composed of living biological material. A portion of it may be returned to the AERATION TANK, but the raw SLUDGE is digested by both microorganism. Anaerobic (without oxygen) and aerobic (with air) bacteria digestions are used. At the digestion stage, carbon dioxide, ammonia, and methane gases are evolved. Volume of the digested sludge is reduced, and it is acceptable as a fertilizer supplement in farming.
organics and inorganics by activated carbon. Some other methods of water treatment are:

particulate matter by coagulation

particulate matter by filtration and sedimentation

hardness and other scale-forming substances

inorganic contaminants

corrosive substances

pathogenic (disease producing) bacteria, viruses, and protozoans (microorganisms).

Answer 2

Hey, here is your answer

They are given below

1) Industrial wastes must be managed on a scientific basis.

2) Industries should be provided waste treatment facilities.

3) Industries may reuse their liquid waste after treatment.

4) Rules and laws should be effectively implemented.

5) Awarness must be created a s promoted at all levels of society.

HOPE IT HELPS YOU