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Various pollutant wastes can be recycled instead of dumping into water . For example waste food material , paper, decaying vegetables and plastics should be collected in separate bins for recycling and not thrown into open drains. This will in turn reduce the pollution rate. Quite revolutionary idea in the field of recycling was brought in by K. Ahmed Khan - who was plastic sack manufacture. Realizing the great threats plastic can cause to the whole living system, he found an ideal solution to use plasticwaste for some good use and is in laying down for roads. He along with his nephew who was a chemical engineer- Amjad Khan , developed a substance called polyblend from plastic. He mixed it with bitumen that is used to lay roads. Polyblend enhanced the bitumen's water repellent properties and helped to increase the road life by a factor of 3.