Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof

An ozone catalysis and fluidized bed technology, applied in the oxidation water/sewage treatment and other directions, can solve the problems of high labor intensity, high recovery rate and high operating cost, and achieve the effect of no secondary pollution, low cost and good effect.

Active Publication Date: 2011-09-21
浙江永峰环保科技股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, in the field of wastewater treatment, there is no very efficient process for the treatment of low-concentration refractory organic matter. Commonly used methods include activated carbon adsorption, chemical oxidation, and ozone oxidation.
[0003] The activated carbon adsorption method is simple in operation, quick in effect, and low in equipment investment; however, the activated carbon needs to be replaced regularly, which is labor-intensive and high in operating costs (the adsorption capacity is about 0.08kgCOD/kg)
Moreover, among the regeneration methods of activated carbon, the traditional high-temperature activation method has the highest recovery rate, and other normal temperature or low temperature methods have unsatisfactory effects, which is a major obstacle restricting the application of activated carbon adsorption technology.
[0004] The advantage of the chemical oxidation m

Method used

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  • Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof
  • Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof
  • Three-phase bicirculating ozone catalytic fluidized bed and wastewater treatment method thereof

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Embodiment 1

[0017] like figure 1 , figure 2 As shown, the three-phase double-circulation ozone catalytic fluidized bed provided by the present invention includes a water inlet pipe 1, a booster return pump 2, a jet aerator 3, a bed body 4, an ozone generator 5 and an outlet pipe 6, and the The water inlet pipe 1 is connected to the booster return pump 2, the booster return pump 2 is connected to the jet aerator 3, the jet aerator 3 is connected to the bed body 4, and the bed body 4 is provided with an outlet pipe 6 for jet aeration An ozone generator 5 is provided between the device 3 and the bed body 4, and a return pipe 7 is provided between the water inlet pipe 1 and the water outlet pipe 6; a gas dissipation layer 8, a circulating backflow outer cylinder 9, and a settling backflow pipe are arranged inside the bed body 4. chamber 10, filter clear liquid chamber 11 and diversion inner cylinder 12, the circulation backflow outer cylinder 9 is arranged under the gas dissipation layer 8,...

Embodiment 2

[0021] like image 3 As shown, the wastewater treatment method provided by the present invention adopts the three-phase double-circulation ozone catalytic fluidized bed, and the wastewater containing refractory organic matter enters the jet aerator 3 after being pressurized by the booster return pump 2 from the water inlet pipe 1 , through the primary nozzle 20 of the jet aerator 3, the primary mixing chamber 23 and the O 3 After the gas is fully contacted and mixed, it enters the secondary nozzle 25, and the O in the gas return pipe 26 is sucked through the secondary suction chamber 24 for the second time. 3 The remaining gas is released into the diversion inner cylinder 12 by secondary injection. Under the synergistic effect of injection kinetic energy, gas entrainment and entrainment promotion, and the density reduction caused by the increase of gas holdup, the water-gas-carrier The three-phase mixed liquid is fully mixed with the reflux liquid in the settling reflux chamb...

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Abstract

The invention discloses a three-phase bicirculating ozone catalytic fluidized bed, and a wastewater treatment method thereof. The three-phase bicirculating ozone catalytic fluidized bed comprises a water inlet pipe, a boosting backflow pump, a jet aerator, a bed body, an ozone generator and a water outlet pipe, wherein the water inlet pipe is connected with the boosting backflow pump, the boosting backflow pump is connected with the jet aerator, the jet aerator is connected with the bed body, the bed body is equipped with the water outlet pipe, the ozone generator is arranged between the jet aerator and the bed body, and a backflow pipe is arranged between the water inlet pipe and the water outlet pipe; a gas dissipation layer, a circulating backflow external drum, a sedimentation backflow chamber, a filtration clean liquid chamber and a guiding internal drum are arranged inside the bed body, the circulating backflow external drum is arranged below the gas dissipation layer, the circulating backflow external drum is connected with the sedimentation backflow chamber, and the filtration clean liquid chamber is arranged below the sedimentation backflow chamber. Based on a high-technology multi-discipline combined process form, the three-phase bicirculating ozone catalytic fluidized bed effectively solves the treatment problem of the wastewater containing refractory organic matters, and has the characteristics of no secondary pollution, good treatment effect and low cost.

Description

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Claims

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Application Information

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Owner 浙江永峰环保科技股份有限公司
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