Dear M. Sonbol, According ...
Published by Bruno Peeters, managing director at Model Engineering
Dear M. Sonbol,
According to my/our extensive experience in treating textile dyeing wastewater (incl. over 20 large textile ETP's in Bangladesh) the concentrations of both cyanides and phenol compounds would be sufficiently low after full equalization for their complete biological oxidation in (advanced) activated sludge plants.
Hence no need to add chemicals aside from pH neutralisation and nutrients for biological treatment.