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Magnetic biochar reaction device for dechlorination of desulfurization wastewater

A desulfurization wastewater and reaction device technology, which is applied in the direction of water pollutants, gaseous effluent wastewater treatment, filter regeneration, etc., can solve the problems of low flue gas discharge temperature, desulfurization wastewater corrosion, dust collector mud accumulation, etc., to improve desulfurization Elimination rate, energy consumption reduction, and the effect of avoiding waste

Active Publication Date: 2021-06-04
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this process will cause local sludge accumulation in the dust collector, low flue gas discharge temperature and corrosion caused by incomplete evaporation of desulfurization wastewater, which will cause many safety hazards

Method used

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  • Magnetic biochar reaction device for dechlorination of desulfurization wastewater
  • Magnetic biochar reaction device for dechlorination of desulfurization wastewater

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Embodiment Construction

[0025] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings. This embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.

[0026] A magnetic biochar reaction device for dechlorination of desulfurization wastewater, comprising a submersible sewage pump 1, a primary adsorption reactor 2, a primary magnetic separation separator 3 and a first carbon tank 4, the first carbon tank 4 is filled with For magnetic biochar, the first charcoal tank 4 communicates with the carbon inlet of the primary adsorption reactor 2, the outlet of the submersible sewage pump 1 communicates with the waste water inlet of the primary adsorption reactor 2, and the outlet of the primary adsorption reactor 2 communicates with a The treatment water inlet 31 of the first-stage magnetic separation separator 3 is co...

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Abstract

The invention discloses a magnetic biochar reaction device for dechlorination of desulfurization wastewater. The magnetic biochar reaction device for dechlorination of desulfurization wastewater comprises structural units such as a submersible sewage pump, an adsorption reactor, a magnetic separator and a carbon tank, chlorine-containing desulfurization wastewater is subjected to mixed reaction and magnetic separation with magnetic biochar, chloride ions in the desulfurization wastewater can be effectively removed, the used magnetic biochar can be recycled through a regeneration step. Magnetic biochar is used for adsorption and dechlorination, the high adsorption capacity of an adsorbent on chloride ions reduces the investment and operation cost, and meanwhile, the resource utilization rate is increased; the magnetic biochar adsorbent realizes separation of a powdery adsorbent and wastewater through a magnetic separator, so that the operation difficulty and cost of the whole process are reduced, and meanwhile, the treatment efficiency is improved; the regeneration of the magnetic biochar adsorbent and the gradient utilization of the new carbon and the regenerated carbon further reduce the process cost, and the optimization of the whole adsorption dechlorination process is realized.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a magnetic biochar reaction device for dechlorination of desulfurization wastewater. Background technique [0002] In coal-fired power plants, wet desulfurization technology has become the main process of flue gas desulfurization in power plants in my country due to its high desulfurization efficiency and mature technology. Due to the dissolution of chloride ions in the flue gas and the high water content of the gypsum slurry, the wet desulfurization process will produce a large amount of desulfurization wastewater containing high concentrations of chloride ions, resulting in pipeline corrosion and a reduction in desulfurization efficiency. [0003] For desulfurization wastewater containing high concentrations of chloride ions, the main treatment processes currently used are evaporative crystallization and flue evaporation. Both methods use evaporation to remove chl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08B01J20/08B01J20/20B01J20/30B01J20/34C02F101/12C02F103/18
CPCC02F9/00B01J20/08B01J20/20B01J20/3078B01J20/3416B01J20/3475C02F1/281C02F1/488C02F2101/12C02F2103/18C02F2201/48
Inventor 张会岩李子为肖睿储升
Owner SOUTHEAST UNIV
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