Blending control method with determination of untreated water hardness via the conductivity of the soft water and blended water
A method for operating a water softening plant includes an automatic blending device, an incoming flow of untreated water being divided into a first partial flow which is softened and a second partial flow which is not softened and then combined into a flow of blended water. The proportions of the t...
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| creator | Dopslaff, Carsten H Dopslaff, Hartmut |
| description | A method for operating a water softening plant includes an automatic blending device, an incoming flow of untreated water being divided into a first partial flow which is softened and a second partial flow which is not softened and then combined into a flow of blended water. The proportions of the two partial flows are adjusted by the automatic blending device such that a desired hardness DV results in the flow of blended water. The conductivity of the softened water and blended water are measured by conductivity sensors in their respective flows. The conductivity of the untreated water is calculated from the measured conductivity of the soft water, from the measured conductivity of the blended water and from the determined proportions of the partial flows. It is possible for the hardness of the blended water to be adjusted very reliably and with improved accuracy. |
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| subjects | CHEMISTRY METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | Blending control method with determination of untreated water hardness via the conductivity of the soft water and blended water |
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