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9.Technical Attachments

 

9.1.Consumption of Energy Resources

Name of department Electric CurrentCompressed Air
Load/unload powered lift stations for racks14,5 kW/hour
Heating unit for degreasing and pickling solutions5 kW/hour
Heating unit for fluxing solution1 kW/hour
Pre-heating dryer40 kW/hour
Galvanizing furnace85 kW/hour
Acid vapours wet scrubber80 kW/hour
Flux and rinsing water treatment units (each)5 kW/hour
White fumes filter90 kW/hour 1 mc/day
Acid recycling unit12 kW/hour

9.2.Industrial By-Products

Name of departmentRejects/ By-productsQuantityDisposal Action
Load and unload area
Load/unload powered lift stations for racksMetallic wire10 kg/tonsSaleable to steel scrap dealers
Chemical treatment department
Acid degreasing tankWaste Oil 0,5 l /tons Saleable to scrap oil dealers
Pickling tankIron Oxide2 kg/tonsSaleable to Red-Oxide paint manufacturers
Fluxing tankIron Oxide 2 kg/tons -Do-
HDG department
Galvanizing BathZinc Dross + Zinc ashesrespectively 11% and 14% of consumptionSaleable to Fertilizers and brass metal manufacturers
Service and treatment plants
Acid vapours wet scrubberAcid water- Recycled to tank
Flux and rinsing water treatment units (each)Iron Oxide0,1 kg/tonSaleable to Red-Oxide paint manufacturers
White fumes filterPowder made of lime, ammonia, zinc and double salt - Saleable to Fertilizers and brass metal manufacturers
Oil separatorWaste Oil0,03 l/tonsSaleable to scrap oil dealers

*The above mentioned figures are only indicative and should be confirmed during the plant design.
*NO WASTAGES to throw in soil/water. All Rejects or By-products are absolutely saleable.


9.3.Emissions Into The Atmosphere of Galvanizing Plant

Process AreaEmissions into the atmosphere
White fumes filterPowders < 5 mg / mc HCl< 10mg / Nmc NH3 < 30 mg / Nmc Zn < 5 mg / Nmc
Acid vapours wet scrubber< 10 ppm HCl
Dryer5 mg/m_ powders (with oxygen at 3%) Sulphur dioxide SO2 : 35 mg/mc Nitrogen dioxide NO2 : 450 mg/mc with air at 400
Galvanizing furnace 5 mg/mc powders (with oxygen at 3%) Sulphur dioxide SO2 : 35 mg/mc Nitrogen dioxide NO2 : 450 mg/mc with air at 400