C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/47
C02F 1/56 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) C02F 1/66 (2006.01) C08B 37/04 (2006.01)
Patent
CA 2012201
ABSTRACT OF THE DISCLOSURE A method for treating muddy water which comprises adding a first chemical containing an alkali metal or alkaline earth metal oxide or hydroxide to muddy water to be treated, thereby rendering muddy water alkaline, adding a second chemical containing an anionic polymer coagulant to muddy water simultaneously with or after the addition of the chemical, further adding a third chemical containing a sulfate thereby rendering the muddy water weakly alkaline, and then adding a fourth chemical containing an anionic polymer coagulant to muddy water. As a result, large-sized and hard flocs are produced.
Hirano Jiro
Ohnishi Takusaburo
Okamoto Sohei
Hirano Jiro
Kabushiki Kaisha Iseki Kaihatsu Koki
Kent & Edgar
Ohnishi Takusaburo
Okamoto Sohei
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