High-efficiency sedimentation basin and process thereof

A high-efficiency sedimentation tank and concentration tank technology, which can be used in sedimentation separation, sedimentation treatment, flocculation/sedimentation water/sewage treatment, etc. The environment, the effect of good environmental benefits

Pending Publication Date: 2017-08-04
上海楚源环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (1) The desulfurization wastewater is poorly targeted, occupies a large area, and consumes a lot of investment
[0006] (2) The dosing ag

Method used

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  • High-efficiency sedimentation basin and process thereof

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0029] Such as figure 1 As shown, the high-efficiency sedimentation tank of the present invention is used for the treatment of desulfurization wastewater in power plants. Specifically, the high-efficiency sedimentation tank includes: a mixing unit 10 , a flocculation unit 20 and a concentration unit 30 arranged in sequence.

[0030] The mixing unit 10 includes a mixing pool for mixing and stirring, and a sodium hydroxide dosing pipe 11 , a ferric chloride dosing pipe 12 and a weight-catcher dosing pipe 13 are arranged on the top o...

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Abstract

The invention provides a high-efficiency sedimentation basin and a process thereof. The high-efficiency sedimentation basin comprises a mixing unit, a flocculation unit and a concentration unit which are successively connected, wherein the mixing unit comprises a mixing basin used for carrying out mixing under stirring; the top of the mixing basin is provided with a sodium hydroxide feeding pipe, a ferric trichloride feeding pipe and a heavy metal capturing agent feeding pipe; the flocculation unit comprises a flocculation basin communicated with the mixing basin; the top of the flocculation basin is provided with a powdery active carbon feeding device; the concentration unit comprises a concentration basin communicated with the flocculation basin and is connected with a concentrated water reflux pipeline; and the concentrated water reflux pipeline receives concentrated water conveyed by a CMF membrane system. The high-efficiency sedimentation basin provided by the invention improves conventional high-efficiency sedimentation basin technology, is more applicable to treatment of desulphurization wastewater, can effectively remove fluorides, heavy metal ions (such as arsenic ions, lead ions and chromium ions) and other pollutants produced in wet-process desulphurization through reaction and precipitation, guarantees the operation environment of a subsequent membrane treatment process and produces good environmental benefits.

Description

technical field [0001] The invention relates to the technical field of power plant desulfurization wastewater treatment, in particular to a high-efficiency sedimentation tank used for power plant desulfurization wastewater treatment and a sedimentation process using the sedimentation tank. Background technique [0002] For power plants that generate electricity by burning coal, it is usually necessary to desulfurize the coal, which will generate a large amount of desulfurization wastewater. Therefore, it is necessary to treat the above-mentioned desulfurization wastewater to avoid environmental pollution. At present, the existing desulfurization wastewater treatment process mainly uses wastewater treatment equipment consisting of mixing unit, reaction zone, precipitation / concentration zone and inclined tube separation zone to treat wastewater. [0003] The principle of the existing desulfurization wastewater treatment process is: in the mixing reaction zone, the rapid coagu...

Claims

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Application Information

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IPC IPC(8): B01D21/01B01D21/06B01D21/28C02F1/52C02F101/20C02F101/14C02F103/18
CPCB01D21/01B01D21/06B01D21/286C02F1/5245C02F2101/20C02F2101/14C02F2103/18C02F2001/007
Inventor 邵梦婷冷雁昆陈光王子东
Owner 上海楚源环保科技有限公司
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