No. The bisulfite or sulfur dioxide will remove the chlorine. No need for activated carbon.But it would be better to add ammonia and produce chloramine at a ppm or less. It will reduce biofilm growth on the membrane.
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
No. The bisulfite or sulfur dioxide will remove the chlorine. No need for activated carbon.But it would be better to add ammonia and produce chloramine at a ppm or less. It will reduce biofilm growth on the membrane.