Plant-sourced flocculant, flocculant mixture, condensation method and method for preparing plant-sourced flocculant

Abstract

The invention provides plant-sourced flocculant with high condensation capacity and flocculant mixture. An equivalent value of colloid of the plant-sourced flocculant is minus 1.5mEq / g to minus 0.3mEq / g, viscosity of aqueous solution of 2 percent by weight is 6.0 *10<minus3> <Pa.s(6.0cP) or more. In addition, the flocculant mixture comprises the plant-sourced flocculant and synthesized polymer flocculant, and the equivalent value of the colloid of the synthesized polymer flocculant is minus 4.5mEq / g to minus 1.2mEq / g, and the viscosity of the aqueous solution of 0.2 percent by weight is 1.3 *10<minus1Pa.S> to 4*10 <minus1Pa.S> (130cP to 400cP).

Description

technical field [0001] The present invention relates to coagulants of vegetable origin, mixtures of coagulants, methods of agglomeration and methods of preparing coagulants of vegetable origin. Background technique [0002] Along with mass production and mass consumption in recent years, the number of suspended particles discharged from water such as factory effluents has been increasing. Therefore, a synthetic polymer coagulant such as polyacrylamide and its copolymer is usually used as a coagulant for coagulating / separating particles suspended and dispersed in water, thereby making the water clear. However, synthetic polymer coagulants have the following problems: [0003] [1] Even if discharged into the soil, it is not decomposed but accumulated. [0004] [2] The monomer (acrylamide, etc.) itself is toxic. [0005] [3] It is a substance synthesized from fossil resources such as petroleum, and is a non-renewable raw material for humans. [0006] Therefore, from the vie...

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Problems solved by technology

[0004] [2] The monomer (acrylamide, etc.) itself is toxic

[0005] [3] It is a substance synthesized from fossil resources such as petroleum, and is a non-renewable raw material for humans

[0007] As a natural polymer coagulant, although guar gum (guar gum) (extract of guar seed of legume), sodium alginate (extract of brown algae such as kelp, Ecklonia cava, black kelp), starch, Gelatin, chitosan (extract of crab carapace), etc. have been studied, but these raw materials are either difficult to raise and cultivate, or their uses are limited, and their coagulation effect is poor, so they have not yet reached the level of widespread practical use.

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