Desulfurized wastewater zero-emission treatment system

A treatment system and desulfurization wastewater technology, applied in the direction of gaseous effluent wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of slow treatment efficiency, easy scaling, artificial addition of chemical reagents, etc.

Pending Publication Date: 2018-09-14
河北华强科技开发有限公司
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Problems solved by technology

The wastewater treated by this method still contains high-concentration salts such as Ca2+, Mg2+, Cl-, SO42-, etc. dissolved in the wastewater. If it is directly discharged for a long time, it will have a serious impact on the surrounding water body, and the chemical agent cannot be fully mixed w...

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  • Desulfurized wastewater zero-emission treatment system
  • Desulfurized wastewater zero-emission treatment system
  • Desulfurized wastewater zero-emission treatment system

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0021] refer to Figure 1-5 , a zero-discharge treatment system for desulfurization wastewater, including a base 1, two first support frames 19 are fixed on the upper end of the base 1, and support plates 4 are fixed on the opposite side walls of the two first support frames 19 , the upper ends of the two support plates 4 are respectively fixed with a second settling tank 20 and a first settling tank for precipitation after the reaction, and filter plates 21 are fixed on the opposite side walls of the second settling tank 20 and the first settling tank , the precipitate is filtered out, wherein one filter plate 21 divides the first sedimentation tank into the first s...

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Abstract

The invention discloses a desulfurized wastewater zero-emission treatment system. The desulfurized wastewater zero-emission treatment system comprises a base, wherein two first supporting frames are fixedly arranged on the upper end of the base; supporting plates are fixedly arranged on opposite side walls in the two first supporting frames; a second precipitating tank and a first precipitating tank are respectively and fixedly arranged on the upper ends of the two supporting plates; filter plates are fixedly arranged on opposite side walls in the second precipitating tank and the first precipitating tank, one filter plate is used for dividing the first precipitating tank into a first precipitating zone and a first filter zone, and the other filter plate is used for dividing the second precipitating tank into a second precipitating zone and a second filter zone; a third liquid inlet hole is formed in the side wall of one end in the first precipitating zone. According to the desulfurized wastewater zero-emission treatment system disclosed by the invention, scaling is not easy to generate during reaction while a chemical agent is fully mixed with wastewater, and the treatment time onthe wastewater is shortened; by carrying out distillation treatment on the treated wastewater by utilizing waste heat of thermal power generation, the purpose of zero emission of desulfurized wastewater can be achieved, pollution to the environment and waste of water resource are reduced, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of desulfurization wastewater treatment, in particular to a zero-discharge treatment system for desulfurization wastewater. Background technique [0002] In the wet flue gas desulfurization process of coal-fired power stations, in order to maintain the balance of the slurry circulation system of the desulfurization device, it is necessary to regularly discharge wastewater from the absorption tower, that is, desulfurization wastewater. Compared with the general industrial wastewater of coal-fired power stations, its water quality is quite special. Many of the substances are the first type of pollutants that are strictly controlled in the national environmental protection standards, mainly in the following aspects: (1) The wastewater is weakly acidic, PH is 4-6; (2) The content of suspended solids is high, the particles are small, and the main component is gypsum, followed by fly ash from flue gas, calcium car...

Claims

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Application Information

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IPC IPC(8): C02F9/10C02F1/04C02F103/18
CPCC02F9/00C02F1/001C02F1/04C02F1/043C02F1/5281C02F5/00C02F2001/007C02F2001/5218C02F2103/18C02F2301/08
Inventor 郑建业夏云广许博文郑春荣仉宁仉媛媛夏云涛
Owner 河北华强科技开发有限公司
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