This text is missing some spaces, please add them: Ifthepre-treater/dyeruseschlorinecompounds,AOXcompounds(adsorbableorganichalogens)willbeformedandsubsequentlydischarged,andtheseareharmfultotheenvironment.
If the pre-treater/dyer uses chlorine compounds, AOX compounds (adsorbable organic halogens) will be formed and subsequently discharged, and these are harmful to the environment.