C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/62 (2006.01) C02F 1/66 (2006.01) C02F 1/70 (2006.01) C02F 9/00 (2006.01)
Patent
CA 2346107
The present invention relates to a process for treating contaminated water to precipitate metals without increasing the total dissolved solids content. In particular, the invention relates to the use of phosphoric acid and calcium hydroxide or calcium oxide to adjust the pH of chromium contaminated groundwater during the treatment process without increasing the total dissolved solids (TDS).
L'invention concerne un procédé de traitement des eaux contaminées par précipitation de métaux, sans augmentation de la teneur totale en particules solides dissoutes. En particulier, l'invention concerne l'utilisation de l'acide phosphorique et de l'hydroxyde de calcium ou de l'oxyde de calcium afin de réguler le pH des eaux souterraines contaminées par le chrome pendant le processus de traitement, sans augmentation de la teneur totale en particules dissoutes (TDS).
El-Shoubary Youssef
Seth Subash C.
Speizer Ned A.
Merck & Co. Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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