Preparation method of compound coagulant

A preparation method and technology of coagulants, which are applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of low efficacy, poor removal effect of drugs, single function, etc., and achieve the effect of simple operation and wide range of efficacy.

Active Publication Date: 2010-06-30
SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These pollutants are mainly treated by traditional medicaments by adjusting ph, redox and other methods, so that the heavy metals and organic substances in the wastewater can be separated from the water, but the removal effect of these medicaments is poor, the function is single, and the efficacy is low. It does not have the effect of completely removing all kinds of substances; ...

Method used

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Effect test

Embodiment 1

[0008] The compound method of the composite coagulant described in the embodiment of the present invention, its preparation method mainly comprises polyaluminum chloride, polydimethyldiallyl ammonium chloride (viscosity is 8000), magnesium sulfate, polyferric chloride and The composition of the deionized water is mixed according to the mass ratio of 30%, 2%, 5%, 1% and 62%.

Embodiment 2

[0010] The compound method of the composite coagulant described in the embodiment of the present invention, its preparation method mainly comprises polyaluminum chloride, polydimethyldiallyl ammonium chloride (viscosity is 10000), magnesium sulfate, polyferric chloride and The composition of the deionized water is mixed according to the mass ratio of 31%, 2%, 5%, 1% and 61%.

Embodiment 3

[0012] The compound method of the composite coagulant described in the embodiment of the present invention, its preparation method mainly comprises polyaluminum chloride, polydimethyldiallyl ammonium chloride (viscosity is 12000), magnesium sulfate, polyferric chloride and The composition of the deionized water is 29.6%, 2.2%, 4.8%, 1.3% and 61.9% according to the mass ratio and mixed together.

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Abstract

The invention relates to a preparation method of a compound coagulant. The compound coagulant is prepared by commonly mixing polyaluminium chloride, diallydimethylammonium chloride (the viscosity is 8,000-12,000), magnesium sulfate, polyferric chloride and deionized water according to the mass ratio of 30 percent, 2 percent, 5 percent, 1 percent and 62 percent. The invention has the advantages of removing heavy metals and organisms in an organic complex by multiple actions, having the effect of decolorization, wide medicine effect range and simple and convenient operation and replacing a plurality of coagulants for use.

Description

technical field [0001] The invention relates to a composite coagulant for removing heavy metals and organic matter in a waste water treatment system and has a good removal effect on complexes, in particular to a preparation method of the composite coagulant. Background technique [0002] With the continuous development of new wastewater treatment technologies and wastewater reuse technologies, coagulants are more and more widely used in water treatment, and the continuous complexity and deterioration of wastewater sources put forward higher requirements for the normal operation of existing treatment systems. , and with the improvement of national water quality discharge standards, the substandard effluent of the water treatment system has become the first major obstacle to its operation. How to reduce and remove heavy metals and organic substances in wastewater has become the most concerned research direction in the industry. These pollutants are mainly treated by traditiona...

Claims

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Application Information

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IPC IPC(8): C02F1/56
Inventor 夏志先
Owner SHANGHAI FENGXIN ENVIRONMENTAL PROTECTION TECH
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