Transcontinental Printing inc : Transcontinental Printing : water reuse demonstration in printing and graphics industry

The resulting regenerated water is returned to the printing operation, where it is re-used in the pre-press and press sinks, the image processing area, and the facility toilets. [...] Because direct information regarding the process wastewater flow rates from the numerous facilities in the province was for the most part unavailable, an approximate ratio between the number of employees and wastewater flow rates was used to estimate the total wastewater flow rates in the Fraser River Basin. [...] For the first scenario, a comparison was made between the cost of installing the filtration technology (pre-, ultra-, and nano-filtration) to treat the wastewater on-site and the cost of hauling the process wastewater from the site. [...] In particular, the objectives of the developmental and implementation phases of the project were: < to increase the percentage of water presently being reused at the facility from 5-10% up to 90-95%; < to reduce contaminant discharge to sanitary sewer; and, < to reduce the cost of operations due to lower transportation costs for hazardous material disposal. [...] The goals of the evaluation phase of the project were: < to determine the contaminant loading reduction in the sewer discharge from Transcontinental Printing; < to determine the contaminant loading reduction in the combined effluents from printing facilities in the Fraser River Basin should similar technology find industry wide acceptance; and < to evaluate the cost/benefits of the proposed techno