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Method for reducing suspended solids in white carbon black production wastewater

A technology for suspended solids and waste water production, which is applied in the field of environmental engineering, can solve the problems of substandard treatment effect and difficult sedimentation, and achieve the effect of reduced treatment cost and good treatment effect

Inactive Publication Date: 2017-10-20
江西双龙硅材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method does not overcome the disadvantage that silica particles in silica wastewater are small and difficult to precipitate, and there are still a large number of silica particles mixed in the clear water, so the treatment effect is not up to standard

Method used

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  • Method for reducing suspended solids in white carbon black production wastewater
  • Method for reducing suspended solids in white carbon black production wastewater

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Effect test

Embodiment 1

[0023] Embodiment 1 The present invention reduces the method for suspended solids in white carbon black production wastewater

[0024] The content of silicon dioxide in the white carbon black wastewater before treatment is 520mg / l. The present invention reduces the method for suspended solids in white carbon black production waste water, and it comprises the steps:

[0025] 1) Suspension preparation: adding powdered calcium oxide to water and fully stirring to prepare a calcium oxide suspension with a uniform mass concentration of 20%;

[0026] 2) Preparation of polyacrylamide solution: dissolving polyacrylamide in water, fully stirring to prepare a polyacrylamide solution with a mass concentration of 5%;

[0027] 3) Precipitation treatment: the polyacrylamide solution and the suspension are mixed with the white carbon black production wastewater in the delivery pipeline through the metering pump and the delivery pipeline, wherein the solute of the polyacrylamide solution is ...

Embodiment 2

[0028] Embodiment 2 A method of reducing suspended solids in white carbon black production wastewater of the present invention

[0029] The content of silicon dioxide in the white carbon black wastewater before treatment is 520mg / l. The present invention reduces the method for suspended solids in white carbon black production waste water, and it comprises the steps:

[0030] 1) Suspension preparation: adding powdered calcium oxide to water and fully stirring to prepare a calcium oxide suspension with a uniform mass concentration of 40%;

[0031] 2) Preparation of polyacrylamide solution: dissolving polyacrylamide in water, fully stirring to prepare a polyacrylamide solution with a mass concentration of 30%;

[0032] 3) Precipitation treatment: the polyacrylamide solution and the suspension are mixed with the white carbon black production wastewater in the delivery pipeline through the metering pump and the delivery pipeline, wherein the solute of the polyacrylamide solution i...

Embodiment 3

[0033] Embodiment 3 The present invention is a kind of method for reducing suspended solids in white carbon black production wastewater

[0034] The content of silicon dioxide in the white carbon black wastewater before treatment is 520mg / l. The present invention reduces the method for suspended solids in white carbon black production waste water, and it comprises the steps:

[0035] 1) Suspension preparation: adding powdered calcium oxide to water and fully stirring to prepare a calcium oxide suspension with a uniform mass concentration of 25%;

[0036] 2) Preparation of polyacrylamide solution: dissolving polyacrylamide in water, fully stirring to prepare a polyacrylamide solution with a mass concentration of 20%;

[0037]3) Precipitation treatment: the polyacrylamide solution and the suspension are mixed with the white carbon black production wastewater in the delivery pipeline through the metering pump and the delivery pipeline, wherein the solute of the polyacrylamide so...

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PUM

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Abstract

The invention relates to a method for reducing suspended solids in white carbon black production wastewater and belongs to the field of environmental engineering. In order to overcome the technical defects in the prior art that particles of suspended solids in white carbon black production wastewater are hard to filter and eliminate and the treatment cost is high, the invention provides the method for reducing suspended solids in white carbon black production wastewater. The method disclosed by the invention comprises the following steps: adding calcium carbonate, calcium oxide, calcium hydroxide and other substances with high specific gravity as well as polyacrylamide into water containing silica suspension, enabling the silica suspension and calcium oxide to flocculate so as to form solid substances with large volume and specific gravity, rapidly settling, and then performing filtering separation. Therefore, the content of the suspended solids in the wastewater in the production process is greatly reduced.

Description

technical field [0001] The invention relates to a method for reducing suspended solids in white carbon black production wastewater, belonging to the field of environmental engineering. Background technique [0002] White carbon black is the general term for white powder X-ray amorphous silicic acid and silicate products, mainly refers to precipitated silica, fumed silica and ultrafine silica gel, and also includes powdered synthetic silicic acid aluminum and calcium silicate etc. Silica is a porous substance, and its composition can be represented by SiO2 nH2O, where nH2O exists in the form of surface hydroxyl groups. Soluble in caustic alkali and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature resistance, non-combustible, tasteless, odorless, with good electrical insulation. [0003] The main raw materials for producing white carbon black by precipitation method are quartz sand, soda ash, industrial hydrochloric acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F103/34
CPCC02F1/56C02F2103/34
Inventor 高焕武
Owner 江西双龙硅材料科技有限公司
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