Toxics use reduction through process improvement, substitution & integral recycling. 1996.

TURI Technical Report No. 31. With the goals of toxics use reduction (TUR) and pollution prevention, Cranston Print Works Company has developed innovative technologies and methodologies for traditional textile processes. The focus of some of these efforts is the reduction in the use of acetic acid and sulfuric acid at Cranston's Webster, Massachusetts facility. In order to reduce cost, worker exposure to hazardous materials,and environmental impact, Cranston Print Works has implemented programs involving the TUR techniques of process modernization, in-process recycling and operations improvements. In-process recycling for an acid ager incorporated integral acetic acid recycling in the process. Control charting and automation of the process to monitor and regulate the use of acetic acid has resulted in significant reductions through process modification and operations improvements. Input substitution for end-of-pipe treatment has also been implemented, using carbon dioxide to replace sulfuric acid as a means of treating alkaline waste in the on-site wastewater treatment facility.

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