A sewage treatment method and device
A sewage treatment device and sewage technology, applied in water/sewage treatment, water/sewage multi-stage treatment, oxidized water/sewage treatment, etc., can solve the problem of uneven contact between ozone and sewage, unsatisfactory technical and economical efficiency, and ozone utilization rate No high-level problems, to achieve the effect of device and airtight operation, improve the utilization rate of ozone, and reduce the harm of the environment and operators
Active Publication Date: 2022-07-19
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0003] For ozone catalytic oxidation technology, the utilization rate of ozone in the traditional process is not high, and the contact between ozone and sewage is uneven, resulting in high energy consumption and unsatisfactory technical and economical efficiency
For the electrocatalytic oxidation technology, the power consumption of the conventional process is relatively high, the treatment efficiency is low, and there are limitations in the application of the technology
Method used
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Embodiment
[0060] The inventor found through research that the current sewage treatment method utilizing ozone and electrocatalysis combined usually has the following problems: the overall ozone utilization rate of the catalytic oxidation device is low, the electrocatalytic oxidation treatment efficiency is not high, and the energy consumption is relatively high.
[0061] In view of this, the inventor creatively proposes a sewage treatment method, which mainly includes the following steps: performing a swirl catalytic oxidation reaction with the swirl gas-liquid mixed state of the sewage to be treated and an oxidizing gas under the action of a catalyst to obtain a first Treating sewage; then, subjecting the first treated sewage in a fluidized state to electrocatalytic fluidization reaction under the action of the first electrode plate to obtain a second treated sewage; and then placing the second treated sewage in a swirling state in a second Under the action of the electrode plate, the e...
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Abstract
The invention discloses a sewage treatment method and device, belonging to the technical field of sewage treatment. The method includes: performing a swirl catalytic oxidation reaction with the sewage to be treated and an oxidizing gas in a swirling gas-liquid mixed state under the action of a catalyst, and then performing an electrocatalytic fluidization reaction under the action of a first electrode plate in a fluidized state, Then, the electrocatalytic swirl reaction is carried out under the action of the second electrode plate in a swirling state, and the oxidizing gas contained therein is digested. The method can effectively improve the reaction efficiency of sewage treatment and reduce the energy consumption in the treatment process. The corresponding sewage treatment device has a cylindrical reactor body, and its interior is divided into a swirl catalytic oxidation zone, an electrocatalytic fluidization reaction zone and an electrocatalytic swirl reaction zone connected in sequence from bottom to top. It is easy to install and disassemble, and has strong flexibility. It can realize device and closed operation and avoid secondary pollution.
Description
technical field [0001] The present invention relates to the technical field of sewage treatment, in particular, to a sewage treatment method and device. Background technique [0002] With the continuous improvement of environmental protection requirements, a large number of difficult-to-treat industrial and domestic sewage needs to be improved in discharge standards, and sewage treatment plants are facing severe challenges, especially in the field of industrial sewage treatment. difficulty. It is difficult to treat these sewage by traditional biochemical degradation process, and it is difficult to reach the standard. Many enterprises use advanced oxidation technology for pretreatment or advanced treatment. Ozone catalytic oxidation technology and electrocatalytic oxidation technology are two of them, which are currently used in many sewage treatment plants. [0003] For the ozone catalytic oxidation technology, the utilization rate of ozone in the traditional process is no...
Claims
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IPC IPC(8): C02F9/06
CPCC02F9/00C02F1/78C02F1/725C02F1/4672
Inventor 王贵宾何庆生王乐范景福赵梓名曹玉红李友臣
Owner CHINA PETROLEUM & CHEM CORP