STUDY NUMBER : 13.1 (COMPLETED) 



ORGANIZATION ; Stone Container Corporation (Champion International 

 Corporation) 



TITLE OF STUDY : Alternative/Additional Methods of Treatment 

 to Improve the Quality of Discharge from Stone Container Corpor- 

 ation's Frenchtown, Montana Kraft Paper Mill 



CONTACT ( S ) : Larry Weeks - Technical Director - Stone Container 



Corporation, Missoula - 626-4451 



OBJECTIVE ; Identify and evaluate alternative state-of-the-art 

 waste treatment technologies available for pulp and paper mill 

 effluents. 



DURATION : 1984 - 1986 



CURRENT STATUS : Stone Container Corporation (Champion Inter- 

 national) hired WESTON, an engineering consulting firm, to review 

 all available waste treatment technologies that could potentially 

 reduce the color, BOD, TSS and nutrient content of their mill's 

 effluent. Starting with 240 title and abstract citations, WESTON 

 screened this list down to eleven potential methodologies. (Other 

 treatment systems were eliminated primarily because they did 

 not have proven records with full-scale application in the pulp 

 and paper industry. ) A detailed evaluation of these eleven tech- 

 nologies was then conducted as to their estimated installation, 

 operation and maintenance costs and their ability to improve 

 the quality of the mill's effluent, i.e., an estimate of the 

 effluent quality expected from these technologies versus the 

 present treatment system. 



FUTURE ACTIVITIES ; Stone Container Corporation is currently 

 working to minimize nutrient concentrations in their effluent. 

 This work is guided by conditions of the Montana Pollution Dis- 

 charge Elimination System (MPDES) Permit issued to Stone in 1986. 



An effluent color removal system is being investigated for 

 use at the Missoula Mill. The process consists of treating the 

 effluent with a coagulant (cationic polyamine) followed by a 

 flocculent (acrylamide) to remove the color from the effluent. 

 The sludge from the treated effluent can be separated and disposed 

 of on land. 



Stone Container Corporation is installing a pilot plant 

 in May, 1987, to test the process with mill effluent. The Wyer- 

 haeuser Company has been employed to conduct acute and chronic 

 toxicity tests of the treated effluent with rainbow trout fry. 

 A 45-day flow-through toxicity test with "button-up" fry will 

 be conducted in June, 1987. A chemical analysis of the treated 

 effluent will be conducted. 



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