Technical Bulletin No. 0017: Pilot Plant Development Project No. 1: Pilot Plant Studies on Waste Treatment at the New York and Pennsylvania Company Pulp and Paper MIll at Johnsonbu
Commencing in June, 1947 and lasting for a period of eight months, pilot plant studies on waste treatment were carried on at the Johnsonburg mill of the New York and Pennsylvania Company. The studies were cooperative in nature in that they were laid out by officials of the company, their consulting engineer, and the National Council for Stream Improvement. Pilot plant studies were decided upon to obtain information on sedimentation with and without chemical treatment which could be applied to a system for treatment of the wastes. Interest was focused on two sources of waste from the mill, which produces sulfite and soda pulp together with paper from these pulps and old paper stock. The first of these was the main effluent emanating from the plant, which shall be called in this report "mixed wastes". The mixed wastes consisted of rejected white water, pulp tail washings, pulp bleaching wastes, clean up waste, and floor washings. The second was the waste from the deinking process. The overall studies included first plain sedimentation of the mixed waste alone, and then plain sedimentation of the mixed waste plus the deinking waste. The plain sedimentation studies were followed by chemical coagulation and sedimentation of the mixed waste plus the deinking waste.