Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-06-19
1976-08-31
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 38A, B01D 1506
Patent
active
039779688
ABSTRACT:
An improvement in closed cycle regeneration of sodium zeolite water softeners using sodium chloride soft brine input which comprises correlating the volume of liquid through the zeolite softener column so that in the effluent the alkaline earth metal content calculated as calcium carbonate has a maximum value of about 16,000 ppm. The sodium chloride soft brine input is selected as 8-12% with optimum 10%.
REFERENCES:
patent: 3312617 (1967-04-01), Klein
patent: 3493498 (1970-02-01), Abrams et al.
patent: 3528912 (1970-09-01), Popper et al.
patent: 3639231 (1972-02-01), Bresler
Cross Ethel R.
Hart Charles N.
Nalco Chemical Company
Premo John G.
Roberts John S.
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