Ultraviolet strong oxygen depth water treatment method and device

A treatment method and water treatment technology, applied in the direction of oxidation water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the loss of electrode stability, high treatment efficiency of AOP technology, waste of energy or resources, etc. To solve the problem, to achieve the effect of reasonable structure design, easy adjustment of technical parameters, and improvement of contact and flow

Active Publication Date: 2019-04-16
殷立峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The traditional AOP water treatment technology is based on the oxidation process of hydroxyl radicals, and hydroxyl radicals are a kind of oxidation-reduction ability with strong but short-lived (10 -4 ~10 -9 s) The active oxidant that is easy to quench is limited by the hydrodynamic radius, and its action distance is very limited. Usually, it can only oxidize within the range of 5-20 μm on the surface of the catalyst;
[0008] In the actual high-concentration organic wastewater, in addition to typical pollutants, it also contains a large number of inert or reducing substances (organic or inorganic), these substances can also react with hydroxyl radicals, and the real pollutants can be degraded Hydroxyl free radicals are less than 0.1%, causing a lot of waste of energy or resources;
[0009] In actual sewage and wastewater, there are inevitably non-ideal water quality, such as salinity, turbidity, chroma, viscosity, oil content, etc., which can have a serious impact on the generation efficiency of hydroxyl radicals,

Method used

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  • Ultraviolet strong oxygen depth water treatment method and device
  • Ultraviolet strong oxygen depth water treatment method and device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] Use coking wastewater figure 2 When the shown ultraviolet strong oxygen reaction device is processed, first connect the pressure equipment (such as pressure tank, transfer pump, etc.) to the water inlet 1, and transport the coking wastewater to be treated into the filter to filter the membrane 2, for example, ultrafiltration Membrane, the ultrafiltration method is used to filter and remove the suspended particles with a diameter of more than 2nm in the coking wastewater. After ultrafiltration, the purified water is output through the filter outlet 4. At the same time, the primary oxidation state active agent is used by pressure equipment (such as pressure tanks, transfer pumps, etc.) ) The purified water is transported into the filter and ultrafiltration, and enters the ultraviolet strong oxygen reactor through the filter outlet 4 at the same time, and the filter is connected to the ultraviolet strong oxygen reactor by the filter outlet 4; in this embodi...

Example Embodiment

[0048] Example 2

[0049] The difference between Example 2 and Example 1 is that the treatment object is high-salt wastewater, and the primary oxidation state active agent selected is 0.10mmol / L K 2 SO 4 , The microporous electrophilic medium is Fe 2 O 3 , The intermediate oxidation state active agent is 0.08mmol / L CH 3 COOOH, the chemical composition of the nanocrystalline spike catalyst is Bi 2 O 3 , The other processing procedures are the same as the embodiment 1. The treatment effects of traditional ozone oxidation technology and ultraviolet strong oxygen technology are shown in the following table:

[0050] High salt wastewater

[0051] It can be obtained from the table to characterize the COD of the water quality index of high-salt wastewater Cr , NH 3 The content of -N, oil content, and SS are all significantly decreased, and the conductivity of the effluent of high-salt wastewater also decreases relative to the raw water. In addition, such as Figure 4 The shown ultravio...

Example Embodiment

[0052] Example 3

[0053] The difference between Example 3 and Example 1 is that the treatment object is polymer-containing wastewater, and the primary oxidation state active agent selected is 0.07mmol / L H 2 SO 4 , The microporous electrophilic medium is NiO, the intermediate oxidation state active agent is 0.22mmol / L H 2 O 2 , The chemical composition of the nanocrystalline spike catalyst is In 2 O 3 , The electromagnetic field excitation source is a 12V alternating electric field; the ultraviolet radiation excitation source is a 20W UV-C ultraviolet lamp. The other processing procedures are the same as in Example 1. The treatment effects of traditional Fenton oxidation technology and ultraviolet strong oxygen technology are shown in the table below:

[0054] Polymer containing wastewater

[0055] It can be obtained from the table to characterize the COD of the water quality index of wastewater containing polymer C The obvious decrease indicates that after the method of the pre...

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Abstract

The invention relates to an ultraviolet strong oxygen depth water treatment method and device. According to the ultraviolet strong oxygen depth water treatment method and device, based on a primary oxidation-state active agent on a nucleophilic interface of electromagnetic excitation, organic pollutants in water are induced to achieve confined electrophilic addition, and active triplet-state freeradicals of the organic pollutants are generated; further, ultraviolet radiation stimulates the intermediate-state oxidation state at the sharp peak of nanocrystalline to generate strong oxidation-state active sites and high active oxygen clusters, the multi-point attack on the active triplet-state free radicals of the pollutants is achieved, and finally, the decomposition and mineralization of the organic pollutants in wastewater can be achieved. The ultraviolet strong oxygen depth water treatment method and device solve the practical problem that the oxidation efficiency is reduced due to the non-ideal water quality, and particularly solve the problem that an AOP technology is inefficient in treatment of high-concentration organic wastewater.

Description

Technical field [0001] The invention relates to the technical field of water treatment in the environmental protection industry, in particular to a deep water treatment device and method based on the ultraviolet strong oxygen action mechanism. Background technique [0002] With the rapid development of industry and agriculture, the types and quantities of sewage and wastewater have increased rapidly, and the pollution to water bodies has become increasingly widespread and serious. The sewage and wastewater often contain a large number of toxic substances, causing potential environmental risks. In order to maintain the health and safety of humans and natural ecology, the treatment of sewage and wastewater is extremely important. At present, physical, chemical, and biological methods are usually used to treat sewage and wastewater to purify the sewage and reduce the degree of pollution, so as to achieve the purpose of recycling and reuse of sewage and wastewater, and make full use ...

Claims

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Application Information

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IPC IPC(8): C02F1/32C02F1/78C02F9/08
CPCC02F1/32C02F1/444C02F1/725C02F1/78
Inventor 殷立峰代云容
Owner 殷立峰
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