Cross-flow microfiltration lime softener

Details Cross-flow microfiltration lime softener Cross-flow microfiltration lime softener

1985-10-24

1987-06-02

Hruskoci, Peter

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210637, 210638, 210651, 210709, 210713, 210728, C02F 154

Patent

active

046701508

ABSTRACT:
A method for softening a fluid containing hardness constituents, comprising the steps of: (a) mixing the fluid with sufficient amounts of a softening agent, and previously precipitated hardness constituents in a reactor to establish a softening reaction in the reactor for precipitating a substantial portion of the hardness constituents contained in the fluid; (b) removing a portion of the fluid and precipitated hardness constituents from the reactor as a slurry and filtering the slurry through a cross-flow microfiltration module containing at least one elongated filtration tube, whereby substantially all of the precipitated hardness constituents are removed from the portion of the fluid exiting from the module as filtrate; and (c) returning at least a portion of the filtered out precipitated hardness constiuents exiting from the module to the reactor as the previously precipitated hardness constituents.

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