Method for regenerating activated carbon by ultrasound and device thereof

A regeneration device and activated carbon technology, applied in separation methods, filter regeneration, filtration separation, etc., can solve problems such as inapplicability and restrictions on the use of activated carbon

Active Publication Date: 2011-07-27
北京科净源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biggest defect of the biological regeneration method is that it can only be applied to slightly polluted water with less than 10mg / L of influent organic matter, so as to maintain the dynamic balance of adsorption and biological regeneration, and the organic matter content in most activated carbon applications is much higher than 10mg / L. L, not suitable for biological regeneration
The use of activated carbon is severely limited due to problems with activated carbon regeneration technology

Method used

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  • Method for regenerating activated carbon by ultrasound and device thereof
  • Method for regenerating activated carbon by ultrasound and device thereof

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Experimental program
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Effect test

Embodiment 1

[0019] The ultrasonic regeneration activated carbon device of the present invention is mainly composed of two parts, that is, an activated carbon adsorption tank and a same-frequency ultrasonic regeneration device.

[0020] The first part is activated carbon adsorption tank 2. The tank is made of anti-corrosion materials, such as stainless steel, epoxy fiberglass, plastic, plexiglass, and carbon steel for anti-corrosion. The adsorption tank 2 is equipped with granular activated carbon 1, and the thickness of the carbon layer is several meters to tens of meters. The top of the adsorption tank 2 is provided with a carbon inlet funnel 18, the upper part is provided with a water outlet pipe 4, the lower part is provided with a water inlet distribution pipe 3, and the bottom is provided with a discharge pipe. The charcoal pipe mouth 5, the charcoal inlet funnel 18 is communicated with the outlet pipe of a water injector 16.

[0021] The second part is the same-frequency ultrasonic...

Embodiment 2

[0027]In the drinking water treatment process, after coagulation, sedimentation and filtration, ozone oxidation activated carbon is used for adsorption treatment. The daily water treatment volume is 6000m3. There are 6 activated carbon adsorption tanks 2, the diameter of the tank is 3m, and the thickness of the carbon layer is 8m. A set of ultrasonic regeneration device with the same frequency is used, 10 ultrasonic oscillators with a frequency of 32KHz are fixed on the inner and outer walls of the regeneration device, each with a power of 200W, the activated carbon stays in the ultrasonic regeneration device for 30 minutes, and the water consumption is 12L / kg. Carbon loss is 0.6%, and 160kg of activated carbon can be regenerated per hour. The carbon unloading pipes 13 of the six activated carbon adsorption tanks 2 are respectively connected to the ultrasonic regeneration device, and the six activated carbon tanks are regenerated by one ultrasonic regeneration device in turn....

Embodiment 3

[0029] The phenol-containing wastewater produced by coal-to-gas production has a residual phenol content of 12 mg / L after biological treatment, and the activated carbon adsorption process is used to treat the excess phenol and then discharge it up to the standard. The daily water treatment volume is 600m3. Two activated carbon adsorption tanks are used, each with a diameter of 2m and a carbon layer thickness of 4.5m. A set of same-frequency ultrasonic regeneration device is used to regenerate the saturated activated carbon. The ultrasonic frequency is 39KHz. Four ultrasonic oscillators are symmetrically fixed on the inner layer of the regeneration device. On the outer wall, each power is 150W, the activated carbon stays in the ultrasonic regeneration device for 24 minutes, the water consumption is 9L / kg, the carbon loss is 0.7%, and the activated carbon is regenerated 60kg per hour. connected. The ultrasonic regeneration device regenerates the saturated activated carbon in ea...

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Abstract

The invention discloses a method for regenerating activated carbon by ultrasound and a device thereof. The device comprises an ultrasound regenerating unit and a corresponding connection delivery system; wherein, the ultrasound regenerating unit is divided into an exterior layer and an interior layer; two side walls corresponding to the outside wall of the interior layer are fixed with a plurality of ultrasonic oscillators with the same frequency while the numbers of ultrasonic oscillators fixed on each side wall are the same and the ultrasonic oscillators are arranged in a pairwise corresponding manner; the lower part of a cavity in the interior layer of the ultrasound regenerating unit is a cleaning section for the activated carbon, while the upper part thereof is a regenerating sectionof the activated carbon; the top part of the ultrasound regenerating unit is provided with a waste stripping liquid outlet and a carbon unloading tube; the lower part of the ultrasound regenerating unit is provided with a cleaning analytical water inlet; the bottom part thereof is connected with an activated carbon delivery pipe after regeneration. The method for regenerating activated carbon by ultrasound uses a plurality of ultrasonic generators with the same frequency to work together, so that the saturated adsorption activated carbon can continuously enter the ultrasound regenerating unitto be regenerated under the effect of ultrasonic oscillators with the same frequency. The invention has the advantages of less energy consumption, small carbon loss, simple regeneration process, short regeneration time, wide application range and the like.

Description

technical field [0001] The present invention relates to a device for regenerating activated carbon, in particular to a device for regenerating activated carbon with ultrasonic waves. Meanwhile, the present invention also relates to a method for regenerating activated carbon by using the device for regenerating activated carbon with ultrasonic waves. Background technique [0002] Activated carbon adsorption technology is widely used in urban water supply treatment, sewage and wastewater treatment, food processing, chemical production, hydrometallurgy and other technical fields. Due to its excellent adsorption effect on organic matter and heavy metals and other pollutants in the water system, the annual use and consumption of activated carbon is very huge. Due to the high price of activated carbon, regeneration should be considered after the adsorption of granular activated carbon is saturated to restore the adsorption capacity. Traditional regeneration methods, such as therm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/34B01J19/10
Inventor 葛敬
Owner 北京科净源科技股份有限公司
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