| 摘要 |
Subject matter of this invention is a composiiton for purification treatment of industrial waste waters, sewer waters, surface and underground waters including: i) calcium hydroxide (Ca(OH)2) and/or bentonite, individually or in combination, in powered form, in the range of about 60 to 90 % by weight, in total, ii) active vegetable carbon in the range of about 10 to 20 % by weight, iii) aluminium sulphate hydrate (Al2(SO4)3 x 18H2O) in the range of about 7 to 11 % by weight, iv) homopolymers of acrylamide or copolymers of acrylamide and salified acrylic acid in the range of about 0.1 to 1 % by weight. |
