Technical Bulletin No. 0916: Effects of Biologically Treated Thermomechanical Pulp (TMP) Mill Effluent on Early-Life Stages and Life Cycles of Fathead Minnow (Pimephales promelas)

Fathead minnow (Pimephales promelas) 7-d, 28-d, 56-d, life-cycle bioassays, biomarker responses, and Ceriodaphnia dubia 7-d bioassays were completed using effluent from a mill producing newsprint from thermomechanical pulp (TMP) made from a furnish of southern pines. Purchased kraft (5%) was blended with TMP for strength during production of approximately 737 ADMT/day of newsprint. Total water use averaged 23 m3 per (air-dried metric tons) ADMT of newsprint produced.