This is a service / maintenance or supply contract in Mont-Laurier, Quebec. Contact the soliciting agency for additional information.

Reference number : 1666928 Acquisition of zinc chloride for the treatment of drinking water for an annual quantity of 4,000 liters or 5,400 liquid kilograms. The product sought by the city is ENV SJ-01, a corrosion inhibitor based on 3 components: Zinc is a corrosion inhibitor that works even when its concentration is low. In addition, it redissolves eventually when the work is completed, thus reducing the tendency for excessive clogging of the pipes; Phosphate is an iron stabilizer and inhibitor. The iron produced by corrosion reacts with the phosphate to form a stable, somewhat sticky compound. Its pale blue color makes it much less visible than other forms of precipitated iron. Moreover, by favoring the promotion of a layer of gamma iron (Fe2O3.FeO), it transforms over time the vulnerable surfaces of the pipes into a compound very resistant to corrosion; The dispersive polyphosphate is incorporated into the treatment in order to ensure a morphological distortion of the crystals and to prevent both their magnification (less visible) and their excessive accumulation on the walls. It acts as a dispersant. The supplier must also schedule an on-site visit every 6 to 8 weeks and submit a written report for each of them. Reasons invoked by the public body for entering into the mutual agreement contract The formula of this product (ENV SJ-01) is specially manufactured for the City, according to the quality of the raw water to be treated. Environor Canada Inc. is the only company that offers a consulting service focused exclusively on corrosion control and color development in drinking water distribution networks.