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Papermaking wastewater flocculating agent and preparation method of papermaking wastewater flocculating agent

A papermaking wastewater and flocculant technology, which is applied in chemical instruments and methods, processing wastewater treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as high cost, secondary pollution, and poor flocculation effect, and achieve cost reduction Low, fast settling speed, excellent coagulation performance

Inactive Publication Date: 2016-05-04
范洲卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing paper-making flocculants still have technical deficiencies such as poor flocculation effect, high cost, and secondary pollution after use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In the embodiment of the present invention, a papermaking wastewater flocculant is composed of the following raw materials in parts by weight: 12 parts of polysilicate, 1 part of sodium polyacrylate, 10 parts of aluminum sulfate, 10 parts of iron citrate, 8 parts of calcium hydroxide 1 part, 1 part of alumina, 3 parts of aluminum trichloride, 18 parts of zeolite, 12 parts of sodium carboxymethyl cellulose, 3 parts of polymolybdenum chloride, 20 parts of polyferric magnesium silicate, and 40 parts of water.

[0017] The preparation method of the papermaking wastewater flocculant consists of the following steps:

[0018] 1) Take polysilicate, sodium polyacrylate, aluminum sulfate, ferric citrate, and iron magnesium polysilicate, put them into a high-pressure steamer, pass in water vapor, and then keep 2 atmospheres for pressure steaming reaction to generate mixture A;

[0019] 2) Mix calcium hydroxide, sodium carboxymethyl cellulose, alumina, zeolite, polymolybdenum chlor...

Embodiment 2

[0022] In the embodiment of the present invention, a papermaking wastewater flocculant is composed of the following raw materials in parts by weight: 16 parts of polysilicate, 4 parts of sodium polyacrylate, 16 parts of aluminum sulfate, 15 parts of iron citrate, 13 parts of calcium hydroxide parts, 4 parts of alumina, 10 parts of aluminum trichloride, 25 parts of zeolite, 18 parts of sodium carboxymethylcellulose, 8 parts of polymolybdenum chloride, 28 parts of polyferric magnesium silicate, and 50 parts of water.

[0023] The preparation method of the papermaking wastewater flocculant consists of the following steps:

[0024] 1) Take polysilicate, sodium polyacrylate, aluminum sulfate, ferric citrate, and polyferric magnesium silicate and put them into a high-pressure steamer, pass water vapor into it, and keep 2.5 atmospheres for pressure steaming reaction to generate mixture A;

[0025] 2) Mix calcium hydroxide, sodium carboxymethyl cellulose, alumina, zeolite, polymolybde...

Embodiment 3

[0028] In the embodiment of the present invention, a papermaking wastewater flocculant is composed of the following raw materials in parts by weight: 21 parts of ferrate, 13 parts of polysilicate, 2 parts of sodium polyacrylate, 12 parts of aluminum sulfate, 11 parts of iron citrate 10 parts of calcium hydroxide, 2 parts of aluminum oxide, 5 parts of aluminum trichloride, 20 parts of zeolite, 14 parts of sodium carboxymethyl cellulose, 4 parts of polymolybdenum chloride, 22 parts of polyferric magnesium silicate, 42 parts of water share.

[0029] The preparation method of the papermaking wastewater flocculant consists of the following steps:

[0030] 1) Take polysilicate, sodium polyacrylate, aluminum sulfate, ferric citrate, and polyferric magnesium silicate and put them into a high-pressure steamer, pass water vapor into it, and keep 2.2 atmospheres for pressure steaming reaction to generate mixture A;

[0031] 2) Mix calcium hydroxide, sodium carboxymethyl cellulose, alumi...

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PUM

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Abstract

The invention discloses a papermaking wastewater flocculating agent and a preparation method of the papermaking wastewater flocculating agent. The papermaking wastewater flocculating agent is prepared from the following raw materials in parts by weight: 12 to 16 parts of polysilicate, 1 to 4 parts of sodium polyacrylate, 10 to 16 parts of aluminum sulfate, 10 to 15 parts of ferric citrate, 8 to 13 parts of calcium hydroxide, 1 to 4 parts of aluminum oxide, 3 to 10 parts of aluminum trichloride, 18 to 25 parts of zeolite, 12 to 18 parts of sodium carboxymethylcellulose, 3 to 8 parts of polymerized molybdenum chloride, 20 to 28 parts of ferric magnesium polysilicate and 40 to 50 parts of water. The preparation method comprises the following steps: putting the polysilicate, the sodium polyacrylate, the aluminum sulfate, the ferric citrate, and the ferric magnesium polysilicate into high-pressure water steam and treating to prepare a mixture A; mixing the calcium hydroxide, the sodium carboxymethylcellulose, the aluminum oxide, the zeolite, polymerized molybdenum chloride and the aluminum trichloride with the water and carrying out ultrasonic treatment to prepare a mixture B; putting the mixture A into the mixture B and treating to obtain the product. The papermaking wastewater flocculating agent provided by the invention has a good coagulation performance and a rapid sedimentation speed; the papermaking wastewater flocculating agent has remarkable effects of removing turbidity, de-coloring, removing oil, dehydrating, removing bacteria, deodorizing, removing algae, removing COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and heavy metal ions in the water and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment technology, in particular to a papermaking wastewater flocculant and a preparation method thereof. Background technique [0002] Papermaking wastewater mainly comes from Paper Industry There are two production processes of pulping and papermaking in production. Pulping is the plant raw material Fiber separation out, made into pulp, and then bleached, this process will produce a large amount of papermaking wastewater; papermaking It is to dilute, shape, press, and dry the pulp to make paper. This process is also prone to papermaking wastewater. Papermaking wastewater produced by pulping is the most polluted. The wastewater discharged during pulp washing is dark brown, which is called black water. The concentration of pollutants in black water is very high, BOD is as high as 5-40g / L, and it contains a lot of fiber, inorganic salt and pigment. The papermaking wastewater discharged fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56C02F103/28
CPCC02F1/5245C02F1/56C02F2103/28
Inventor 范洲卫
Owner 范洲卫
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