The operation of 32 packed bed and cross flow bleach plant scrubbers h
as been reviewed. This report covers the major areas of concern on the
bleach plant scrubbers. Significant saving may be achieved by recover
y of chlorine dioxide and the control of the scrubbing media, caustic
and reductant residual by consistent performance from pH, ORP or sulph
ide probes. There is latent potential for more cost-effective yet effi
cient scrubbing of bleach plant emission.