Method and device thereof for treating cascade adsorbed water by radiating lateral and vertical flows

A technology of water treatment device and treatment method, which is applied in the direction of adsorption water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Problems such as uneven distribution of pollution amount and affecting effluent water quality

Inactive Publication Date: 2011-01-05
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The traditional filtration method only adopts the form of single-layer or multi-layer filter material flowing vertically into and out of the water, which cannot achieve the effec...

Method used

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  • Method and device thereof for treating cascade adsorbed water by radiating lateral and vertical flows
  • Method and device thereof for treating cascade adsorbed water by radiating lateral and vertical flows
  • Method and device thereof for treating cascade adsorbed water by radiating lateral and vertical flows

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Embodiment 1

[0026] The raw water is lifted to the water inlet chamber of the radiation type side flow plus vertical flow cascade adsorption water treatment device through the lift pump, and the airtight pressure adsorption filter is used. The first stage adopts the side flow water inlet method, and the second stage adopts Pressure flow from top to bottom vertical water inlet mode, wherein: the filtration rate of the first-stage radial side flow filter chamber 2 decreases along the radius direction, the filtration rate of the inlet water is 1.12 m / h, and the filtration rate of the outlet water is 0.22 m / h h, the filtration rate of the second stage vertical flow filter chamber 4 is 0.46 m / h. The filter materials in the device are made of red mud-based environmental restoration materials. The particle size of the filter material in the first-stage radial lateral flow filter chamber is 1.25-1.6mm, and the laying thickness is 900mm; the particle size of the filter material in the second-stage ...

Embodiment 2

[0028] The raw water is lifted to the water inlet chamber of the radiation type side flow plus vertical flow cascade adsorption water treatment device through the lift pump, and the airtight pressure adsorption filter is used. The first stage adopts the side flow water inlet method, and the second stage adopts Pressure flow from top to bottom vertical water inlet mode, in which: the filtration rate of the first-stage radial side flow filter chamber 2 decreases along the radial direction, the influent filtration rate is 1.52 m / h, and the effluent filtration rate is 0.42 m / h h, the filtration rate of the second stage vertical flow filter chamber 4 is 0.30 m / h. The filter materials in the device are made of red mud-based environmental restoration materials. The particle size of the filter material in the first-stage radial lateral flow filter chamber is 1.6-2.0mm, and the laying thickness is 800mm; the particle size of the filter material in the second-stage vertical flow filter ...

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Abstract

The invention relates to a method and a device thereof for treating cascade adsorbed water by radiating lateral and vertical flows. In the method, two-stage absorption and filtering are implemented by adopting a closed pressure type device, wherein the first stage adopts a radiation type lateral flow water inlet mode, and the filtering speed of a filter chamber of the lateral flow is reduced gradually along the radius direction; and the second stage adopts a pressure flow vertical water inlet mode from top to bottom, and the filtered water is discharged via a pipeline. The filter materials are red mud-based environmental rehabilitation materials, and the filter layer of each stage of filter chamber is in a homogeneous structure. The filter function of the filter layers is kept through a back washing mode, and the back washing water washes the filter layers from top to bottom and then flows out via pipelines. The device mainly comprises a filter system and a back washing system. The invention not only solves the problem of uneven capacity of the pollutant removal and enhances the treatment effect, but also enhances the back washing effect by adopting a back washing mode from top to bottom and a lateral back washing mode. Compared with the traditional physicochemical-biochemical technique, the method and device of the invention have obvious purification effect.

Description

technical field [0001] The invention relates to an electroplating wastewater treatment process, especially a radiation lateral flow plus vertical flow cascaded adsorption water treatment method and device thereof in the water treatment and purification process under the condition of rich types of heavy metal ions and high concentration in the electroplating wastewater. Background technique [0002] In the engineering practice of water treatment, 80% of the treatment of electroplating wastewater at home and abroad adopts chemical methods. Chemical treatment of heavy metals in electroplating wastewater is currently the most widely used and mature method. This method can remove a variety of metal ions at one time, but the production water after treatment by this method cannot be recycled, and it takes up a lot of space and produces sludge. big. Adsorption method is a method of removing heavy metal ions by using the special structure of the adsorbent. Because the adsorption tre...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/28
Inventor 李孟吴建锋卢家喜徐晓虹夏世斌廖祁明
Owner WUHAN UNIV OF TECH
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