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Treatment agent of steelmaking waste water

A steelmaking wastewater and treatment agent technology, applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc., can solve the problems of slow effect, treatment effect to be improved, high treatment cost, etc., to achieve The effect is stable, the treatment effect is good, and the effect of removing suspended solids is high

Inactive Publication Date: 2014-04-23
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing steelmaking wastewater treatment products or methods have the disadvantages of high treatment cost and slow effect, and the treatment effect needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A steelmaking wastewater treatment agent, comprising the following raw materials in parts by weight: 25 parts of polyacrylamide, 15 parts of sodium hydroxide, 2 parts of sodium carbonate, 15 parts of magnesium oxide powder, 10 parts of polysilicoferric sulfate, quaternary ammonium salt lignin 20 parts of flocculant, 20 parts of sodium bentonite, 2 parts of aminotrimethylene phosphonic acid, 5 parts of pentasodium diethylenetriaminepentaacetic acid, 20 parts of polyaspartic acid, and 12 parts of polyaluminum chloride.

[0037] A preparation method of a steelmaking wastewater treatment agent, comprising the following preparation steps:

[0038] A. Add the other raw materials except quaternary ammonium salt lignin flocculant and pentasodium diethylenetriaminepentaacetate into the container in turn, and stir evenly;

[0039] B. Before putting into use, add quaternary ammonium salt lignin flocculant and pentasodium diethylenetriaminepentaacetate, and stir for 10 minutes; the...

Embodiment 2

[0041] A steelmaking wastewater treatment agent, which includes the following raw materials in parts by weight: 35 parts of polyacrylamide, 5 parts of sodium hydroxide, 5 parts of sodium carbonate, 5 parts of magnesium oxide powder, 15 parts of polysilicic ferric sulfate, quaternary ammonium salt wood 15 parts of plain flocculant, 25 parts of sodium bentonite, 0.5 parts of aminotrimethylene phosphonic acid, 10 parts of pentasodium diethylenetriaminepentaacetic acid, 10 parts of polyaspartic acid, and 25 parts of polyaluminum chloride. Wherein, the polyacrylamide is a non-ionic polyacrylamide with a molecular weight above 14 million.

[0042] A preparation method of a steelmaking wastewater treatment agent, comprising the following preparation steps:

[0043] A. Add the other raw materials except quaternary ammonium salt lignin flocculant and pentasodium diethylenetriaminepentaacetate into the container in turn, and stir evenly;

[0044] B. Before putting into use, add quatern...

Embodiment 3

[0046] A steelmaking wastewater treatment agent, which includes the following raw materials in parts by weight: 45 parts of polyacrylamide, 10 parts of sodium hydroxide, 3 parts of sodium carbonate, 10 parts of magnesium oxide powder, 20 parts of polysilicon ferric sulfate, quaternary ammonium salt wood 10 parts of plain flocculant, 30 parts of sodium bentonite, 1 part of aminotrimethylene phosphonic acid, 15 parts of pentasodium diethylenetriaminepentaacetic acid, 15 parts of polyaspartic acid, 20 parts of polyaluminum chloride, cross-linked rector stone 1 5 share.

[0047] A preparation method of a steelmaking wastewater treatment agent, comprising the following preparation steps:

[0048] A. Add the other raw materials except quaternary ammonium salt lignin flocculant and pentasodium diethylenetriaminepentaacetate into the container in turn, and stir evenly;

[0049] B. Before putting into use, add quaternary ammonium salt lignin flocculant and pentasodium diethylenetriam...

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PUM

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Abstract

The invention belongs to the technical field of a sewage treatment agent, in particular to a treatment agent of steelmaking waste water. The treatment agent comprises the following raw materials in parts by weight: 25 to 45 parts of polyacrylamide, 5 to 15 parts of sodium hydroxide, 2 to 5 parts of sodium carbonate, 5 to 15 parts of magnesium oxide powder, 10 to 20 parts of polysilicon ferric sulfate, 10 to 20 parts of quaternary ammonium salt lignin flocculant, 20 to 30 parts of sodium base bentonite, 0.5 to 2 parts of amino trimethylene phosphonic acid, 5 to 15 parts of pentasodium diethylenetriaminepentaacetate, 10 to 20 parts of polyaspartic acid, and 12 to 25 parts of polyaluminium chloride. The treatment agent of steelmaking waste water disclosed by the invention is good in treatment effect, obvious in corrosion and scale inhibiting effect, capable of reducing scaling and corrosion effectively, lowering the production cost, high in purity, free of toxicity, and has no influence on operating workers and problems such as secondary pollution after treatment.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a steelmaking wastewater treatment agent. Background technique [0002] Steelmaking wastewater refers to the wastewater discharged from the main and auxiliary production processes in the steelmaking process. The current steelmaking method is generally converter steelmaking, and pure oxygen top-blown converter steelmaking is the main method, so that the equipment that produces these three types of wastewater is indirectly cooled. Water, direct cooling wastewater of equipment and products, wastewater of production process, namely converter dedusting wastewater. The steelmaking waste water produced by the existing steelmaking units is discharged in large quantities. Some steelworks lay long-distance pipelines and send them to the water treatment center for treatment. The treatment cost is often high; waste, and the iron and steel industry is a major polluter. If the contr...

Claims

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Application Information

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IPC IPC(8): C02F5/14
Inventor 姬志刚蔡冬梅程学勇姬志强李军刚贾海亮
Owner HEBEI UNIV OF ENG
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