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A kind of desulfurization industrial wastewater treatment method

A treatment method and technology for industrial wastewater, which are applied in gaseous effluent wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of the power industry, the complex composition of desulfurization wastewater, and the poor drug compatibility. To achieve the effect of improving the overall applicability

Active Publication Date: 2020-05-08
中瑞工程设计院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most thermal power plants in China use limestone-gypsum wet flue gas desulfurization. The desulfurization wastewater produced by this method is difficult to treat due to its complex composition. However, with the increasingly strict national environmental protection laws, regulations and policies, the wastewater discharge indicators are gradually increasing. Coal-fired power plants are large water users, and the amount of desulfurization wastewater is very large. If special and efficient treatment equipment and methods cannot be implemented for this part of wastewater, the power industry will be unable to move forward.
[0003] In the treatment of desulfurization wastewater, the water quality and quantity of desulfurization wastewater must be fully considered. Due to the different production conditions of different manufacturers, if the drug method is simply used, it is necessary to test different drug additions and treatment time in different manufacturers. The compatibility of the drug method is not good.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0037] A desulfurization industrial wastewater treatment method, the treatment method uses desulfurization industrial wastewater treatment equipment, the equipment includes a neutralization tank, a sedimentation flocculation chamber, a mud discharge chamber, a plate and frame filter press, a sewage treatment chamber and a water storage tank.

[0038] The neutralization tank includes a neutralization tank shell, a desulfurization wastewater inlet, a neutralizer inlet, a stirring shaft, a neutralization filter plate, and a neutralization tank outlet; A desulfurization wastewater inlet is provided, a neutralizer inlet is provided on the top side, and a stirring shaft is provided at the inner bottom of the neutralization tank shell. A plurality of blades, extending from the connection between the stirring shaft and the blades to the outermost side of the bottom of the neutralization box shell, a neutralization filter plate (set in the shape of an inverted funnel) is provided, and a...

Embodiment 2

[0057] A desulfurization industrial wastewater treatment method, the treatment method uses desulfurization industrial wastewater treatment equipment, the equipment includes a neutralization tank, a sedimentation flocculation chamber, a mud discharge chamber, a plate and frame filter press, a sewage treatment chamber and a water storage tank.

[0058] The neutralization tank includes a neutralization tank shell, a desulfurization wastewater inlet, a neutralizer inlet, a stirring shaft, a neutralization filter plate, and a neutralization tank outlet; A desulfurization wastewater inlet is provided, a neutralizer inlet is provided on the top side, and a stirring shaft is provided at the inner bottom of the neutralization tank shell. A plurality of blades, extending from the connection between the stirring shaft and the blades to the outermost side of the bottom of the neutralization box shell, a neutralization filter plate (set in the shape of an inverted funnel) is provided, and a...

Embodiment 3

[0078] A desulfurization industrial wastewater treatment method, the treatment method uses desulfurization industrial wastewater treatment equipment, the equipment includes a neutralization tank, a sedimentation flocculation chamber, a mud discharge chamber, a plate and frame filter press, a sewage treatment chamber and a water storage tank.

[0079] The neutralization tank includes a neutralization tank shell, a desulfurization wastewater inlet, a neutralizer inlet, a stirring shaft, a neutralization filter plate, and a neutralization tank outlet; A desulfurization wastewater inlet is provided, a neutralizer inlet is provided on the top side, and a stirring shaft is provided at the inner bottom of the neutralization tank shell. A plurality of blades, extending from the connection between the stirring shaft and the blades to the outermost side of the bottom of the neutralization box shell, a neutralization filter plate (set in the shape of an inverted funnel) is provided, and a...

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PUM

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Abstract

The invention relates to a desulfurization industrial waste water treatment method. Desulfurization industrial waste water treatment equipment is adopted in the treatment method. The equipment comprises a neutralizing tank, a precipitating-flocculating chamber, a mud discharging chamber, a plate-and-frame filter press, a sewage treatment chamber and a water storage tank. Through arrangement of thecomponents and the combination of a medicinal method with specific equipment, chemical treatment is combined with physical treatment, the waste water treatment efficiency is increased, and meanwhilethe general applicability of the method is enhanced.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to the field of water treatment of industrial desulfurization wastewater, and in particular relates to a method for treating desulfurization industrial wastewater. Background technique [0002] At present, most thermal power plants in China use limestone-gypsum wet flue gas desulfurization. The desulfurization wastewater produced by this method is difficult to treat due to its complex composition. However, with the increasingly strict national environmental protection laws, regulations and policies, the wastewater discharge indicators are gradually increasing. Coal-fired power plants are large water users, and the amount of desulfurization wastewater is very large. If special and efficient treatment equipment and methods cannot be implemented for this part of wastewater, the power industry will be unable to move forward in the later stage. [0003] To treat desulfurization wastewater,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F11/127C02F11/122C02F103/18C02F101/20
CPCC02F1/001C02F1/283C02F1/5236C02F1/66C02F9/00C02F11/127C02F2101/20C02F2103/18C02F2301/08
Inventor 陈建祥
Owner 中瑞工程设计院有限公司
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