But at the Franklin plant, only the oldest of the three bleaching lines still uses chlorine.

He used chlorine in an attempt to clean the water and had the handle removed, thus ending the outbreak.

A disinfection system (typically using chlorine or ozone) is commonly used following filtration.

The firm was one of the earliest users of chemical bleaching using chlorine.

He was also aware of previous efforts to use chlorine in drinking water supplies.

Water quality is maintained by a sophisticated sanitizing system using ozone, instead of chlorine.

And it specifically objects to paper that has been bleached using chlorine.

He found that the decision to change from using chlorine to chloramine as a treatment chemical had caused the spike in lead levels.

In all, 104 of the country's 600 paper mills use chlorine.

He asked the fellow with the nasty cigar, "You use chlorine or phosgene?