Water treatment process
First Claim
1. IN A LIME TREATMENT PROCESS FOR WATER, WHICH WATER CONTANS BICARBONATE HARDNESS, THE IMPRIVEMENT WHICH COMPRISES THE STEP OF INTRODUCING TO THE WATER, PRIOR TO THE TREATMENT WITH LIME, SUBSTANTIALLY UNHYDRATED MAGNESIUM OXIDE OF A PARTICLE SIZE OF BETWEEN ABOUT 0.1 TO 1 MICRON WITH NO SIGNIFICANT QUANITY OF THE MAGNESIUM OXIDE EXCEEDING ABOUT ONE MICRON SO THAT THE MAGNESIUM OXIDE REACTS DIRECTLY AND WSSENTIALLY COMPLETELY WITH BICARBONATE HARDNESS (A) TO PROVIDE THE MAGNESIUM COMPONENT IN SOLUTION ESSENTIALLY AS MAGNESIUM CARBONATE AND (B) TO DECREASE THE BICARBONATE HARDNESS, AND ADDING TO THE WATER OF DECREASED BICARBONATE HARDNESS CONTAINING THE SOLUBLE MAGNESIUM COMPONENT LIME AT LEAST IN SUFFICIENT AMOUNT TO PRECIPITATE THE MAGNESIUM COMPONENT AS A COAGULANT, AND WHEREBY THE LIME REQUIREMENT FOR SOFTENING OF THE WATER IS REDUCED.
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1 Claim
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1. IN A LIME TREATMENT PROCESS FOR WATER, WHICH WATER CONTANS BICARBONATE HARDNESS, THE IMPRIVEMENT WHICH COMPRISES THE STEP OF INTRODUCING TO THE WATER, PRIOR TO THE TREATMENT WITH LIME, SUBSTANTIALLY UNHYDRATED MAGNESIUM OXIDE OF A PARTICLE SIZE OF BETWEEN ABOUT 0.1 TO 1 MICRON WITH NO SIGNIFICANT QUANITY OF THE MAGNESIUM OXIDE EXCEEDING ABOUT ONE MICRON SO THAT THE MAGNESIUM OXIDE REACTS DIRECTLY AND WSSENTIALLY COMPLETELY WITH BICARBONATE HARDNESS (A) TO PROVIDE THE MAGNESIUM COMPONENT IN SOLUTION ESSENTIALLY AS MAGNESIUM CARBONATE AND (B) TO DECREASE THE BICARBONATE HARDNESS, AND ADDING TO THE WATER OF DECREASED BICARBONATE HARDNESS CONTAINING THE SOLUBLE MAGNESIUM COMPONENT LIME AT LEAST IN SUFFICIENT AMOUNT TO PRECIPITATE THE MAGNESIUM COMPONENT AS A COAGULANT, AND WHEREBY THE LIME REQUIREMENT FOR SOFTENING OF THE WATER IS REDUCED.
Specification
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Current AssigneeCompte Jr Archie R Le
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Original AssigneeCompte Jr Archie R Le
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InventorsCOMPTE JR ARCHIE R LE
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Application NumberUS04/409,102Time in Patent Office628 DaysField of SearchUS Class Current210/712CPC Class CodesC02F 5/02 Softening water by precipit...
