C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/58 (2006.01) C02F 1/28 (2006.01) C02F 1/52 (2006.01) C02F 1/64 (2006.01) C02F 1/66 (2006.01)
Patent
CA 2212405
A method for treating phosphate-containing waste water comprising treating phosphate-containing waste water with a metal hydroxide complex as a phosphate adsorbent represented by formula (1) : M1-x2+M x3+(OH-)2+x-y(A N-)y/n (1) wherein M2+ represents at least one divalent metal ion selected from the group consisting of Mg2+, Ni2+, Zn2+, Fe2+, Ca2+ and Cu2+, M3+ represents at least one trivalent metal ion selected from the group consisting of Al3+ and Fe3+, A n- represents n-valent anion, 0.1<=x<=0.5, 0.1<=y<=0.5 and n is 1 or 2 to adsorb phosphate is provided.
Koizumi Tomohide
Mihara Mikiko
Ookubo Akira
Oonishi Shouichi
Sato Toshio
Marks & Clerk
Tomita Pharmaceutical Corporation Limited
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