High performance flocculant for wastewater treatment

A wastewater treatment and flocculant technology, which is applied in the textile industry wastewater treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of waste of resources, poor utilization of raw materials, difficult to handle waste residues, etc., and achieve production costs and usage Low cost, high environmental benefits, good decolorization effect

Inactive Publication Date: 2013-01-02
天津莱特化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, these waste residues are rich in aluminum and iron, which are good raw materials for the preparation of flocculants, but thes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-performance flocculant for wastewater treatment, characterized in that: it comprises the following raw materials in parts by weight: 30 parts of montmorillonite;

[0023] 35 parts of steel slag;

[0024] 5 parts of electrolytic aluminum slag;

[0025] 45 parts of magnesium ore;

[0026] Red mud 15 parts

[0027] The magnesium ore is one or more of spinel, spinel olivine, magnesium sulfate heptahydrate, dolomite, red garnet, and magnesite.

[0028] The red mud is Bayer process red mud, sintering process red mud, mixed process red mud.

[0029] A method for preparing the above-mentioned high-performance wastewater treatment flocculant, characterized in that:

[0030] (1) Raw material preparation: Grind montmorillonite, iron and steel slag, electrolytic aluminum slag, magnesium ore and red mud respectively through a 100-mesh sieve, roast and activate to obtain an activated product;

[0031] (2) Add the activated product of step (1) into the reaction ket...

Embodiment 2

[0037] A high-performance flocculant for wastewater treatment, characterized in that: it comprises the following raw materials in parts by weight: 40 parts of montmorillonite;

[0038] 40 parts of steel slag;

[0039] 6 parts of electrolytic aluminum slag;

[0040] 60 parts of magnesium ore;

[0041] Red mud 20 parts

[0042] The magnesium ore is one or more of spinel, spinel olivine, magnesium sulfate heptahydrate, dolomite, red garnet, and magnesite.

[0043] The red mud is Bayer process red mud, sintering process red mud, mixed process red mud.

[0044] A method for preparing the above-mentioned high-performance wastewater treatment flocculant, characterized in that:

[0045] (1) Raw material preparation: Grind montmorillonite, iron and steel slag, electrolytic aluminum slag, magnesium ore and red mud respectively through a 200-mesh sieve, roast and activate to obtain an activated product;

[0046] (2) Add the activated product of step (1) into the reaction kettl...

Embodiment 3

[0052] A high-performance flocculant for wastewater treatment, characterized in that: it comprises the following raw materials in parts by weight: 55 parts of montmorillonite;

[0053] 45 parts of steel slag;

[0054] 7 parts of electrolytic aluminum slag;

[0055] 70 parts of magnesium ore;

[0056] Red mud 25 parts

[0057] The magnesium ore is one or more of spinel, spinel olivine, magnesium sulfate heptahydrate, dolomite, red garnet, and magnesite.

[0058] The red mud is Bayer process red mud, sintering process red mud, mixed process red mud.

[0059] A method for preparing the above-mentioned high-performance wastewater treatment flocculant, characterized in that:

[0060] (1) Raw material preparation: Grind montmorillonite, iron and steel slag, electrolytic aluminum slag, magnesium ore and red mud respectively through a 300-mesh sieve, roast and activate to obtain an activated product;

[0061] (2) Add the activated product of step (1) into the reaction ket...

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PUM

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Abstract

The invention discloses a high performance flocculant for wastewater treatment. The flocculant comprises the raw material in parts by weight as follows: 30-55 parts of montmorillonite, 35-45 parts of steel slag, 5-7 parts of electrolytic aluminum slag, 45-70 parts of magnesium ore, and 15-25 parts of red mud. The flocculant with the magnesium ore, the red mud, the montmorillonite, the steel slag and the electrolytic aluminum slag prepared by industrial hydrochloric acid contains various flocculating and decoloring effective components such as aluminum, iron and magnesium, so that the flocculant has better decoloring effect on reactive dye, vat dye and acid dye, and specially has better decoloring effect and higher COD (Chemical Oxygen Demand) removal rate to alkaline printing and dyeing wastewater. According to the high performance flocculant for wastewater treatment provided by the invention, waste residue produced by industrial production is adequately utilized to treat waste with waste, so that the high performance flocculant for wastewater treatment has the advantage of wide material source, low cost and good accessibility, low production and use cost, simple processing and preparation, wide range of application, good wastewater treatment effect, treatment of waste by waste and high environment-friendly benefit, and can be used as a flocculant for treating wastewater containing suspended solids.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment agents, in particular to a high-performance flocculant for wastewater treatment. Background technique [0002] Printing and dyeing wastewater refers to the wastewater discharged from the processing of textile products such as cotton, wool, and chemical fiber. The printing and dyeing wastewater has complex components, high content of organic pollutants, poor biodegradability, deep chroma, high COD and BOD, and large water quality changes. It is an industrial wastewater that is difficult to degrade and treat. The existing coagulation method to treat printing and dyeing wastewater mainly uses a single iron salt and aluminum salt as a chemical flocculant, which has problems such as large dosage, high cost, loose floc particles, and poor settling performance. [0003] Iron and steel slag, electrolytic aluminum slag and red mud are residues produced by industrial production and ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F103/30
Inventor 姚晓东袁波郝日诗王军杨雪峰鲁明洪桂芳陈爱春
Owner 天津莱特化工有限公司
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