WATER QUALITY STABILIZATION SYSTEM FOR PURIFICATION PLANT AND PURIFYING METHOD USING THE SAME

摘要

The present invention relates to a water treatment system for a water purification plant and a water treatment method using the same, according to the present invention, a slaked lime input unit including a slaked lime metering input device, a carbon dioxide gas storage container, a diffuser for diffusing carbon dioxide, and the diffuser A carbonated water supply unit including a carbonated water supply tank for accommodating and supplying carbon dioxide dissolved in carbon dioxide and carbon dioxide gas to the introduced raw water with a safety valve and a non-return valve; and the carbonated water or carbonated water and carbon dioxide mixture connected to the carbonated water supply unit. A calcined lime dissolving unit including a venturi tube and raw water for mixing the melted lime and the solution introduced from the slaked lime injecting unit, a dissolution reaction tank for stirring the supplied carbonated water together, and a flow adjusting tank for adjusting the flow rate of the mixed water; Made of, for the slaked lime Characterized in that the filtered mixed water filtered from the dissection is supplied downstream of the watering well, the mixed water is supplied or blocked to correspond to the pH set by the pH adjusting device to adjust the pH.;Accordingly, the present invention enables effective blocking of moisture and harmful atmosphere for slaked lime and effective corrosion prevention for electrical equipment, and also injecting carbon dioxide into raw water before melting slaked lime to increase the solubility of slaked lime to maintain proper pH and alkalinity. This further improves the flocculation and sedimentation efficiency of the raw water and at the same time stabilizes it, reduces the amount of sludge, prevents water drainage due to clouding, prevents coloration due to pH reduction, and adds raw lime and / or By selectively injecting carbon dioxide into the purified water, it is easy to adjust the pH, and the properly produced carbonate ions form a suitable calcium carbonate film on the surface of the pipe to prevent corrosion of the water pipe and to stabilize the constant to minimize water quality change. You can adjust the integer from 7.5 to 8.5.;Water purification plant, Slaked lime, Carbonated water, Venturi tube, pH control, Line mixer