NALCO LTD

The best solution for tertiary filtration: high solid removal yields, minimum water and energy consumption. In the PEC – PEC VM (VM = metal tank) series, cloth washing is done with pumps, each of which is served by two or more discs. The pumps are actuated in sequence in order not to disrupt the functionality of the system. The PEC – PEC MT solution is ideal for small-medium unattended systems with heavy and extremely variable loads. The largest model of this series can process a load equal to a community of approximately 20.000 PE. The various models can be installed in parallel to obtain various working capacities. - Gravity filtration with limited head loss. - Continuous filtration without standby units for the backwash phases. - Cloth filter in polstoff free fibre provided with high mechanical strength. - High filtration rate (concentrations of TSS < 5 mg/l at discharge).

Sodium Hypochlorite 12% Aqueous solution of sodium hypochlorite in demineralized/decalcified water, obtained from the reaction between chlorine gas and an aqueous solution of sodium hydroxide, both substances obtained with mercury-free membrane technology. Physical specifications: Green liquid with pH about 11, solved in water with boiling point of 40° C. Stability and reactions: Slowly dissolved in the air, incompatible with hydrochloric acid, ammonia, urea, metals and methanol. Handling and storage: Keep away from sun shine, acids, heat, flammable materials and organic material. Keep in a dry place. CAS number 7681-52-9 WE number,231-668-3 Chemical formula NaOCl Molar mass 74,44 g/mol Customs tariff code,28289000