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Novel multi-technology synergetic catalysis advanced micro-bubble ozone oxidation tower

A technology of synergistic catalysis and ozone oxidation, applied in the fields of oxidized water/sewage treatment, flotation water/sewage treatment, light water/sewage treatment, etc. Complex ingredients, etc.

Active Publication Date: 2011-07-06
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Industrial wastewater generally has the characteristics of complex components, refractory biodegradation, toxicity and harmfulness, and simple biochemical treatment methods are difficult to achieve the expected treatment effect

Method used

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  • Novel multi-technology synergetic catalysis advanced micro-bubble ozone oxidation tower

Examples

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Embodiment example

[0019] Using the above-mentioned embodiment as an advanced treatment unit to treat the effluent from the third sedimentation tank of a dry-process acrylic fiber factory in Northeast China, the full analysis shows that the refractory nitriles, nitrogen-containing heterocycles, alkanes and amino organic compounds in the effluent account for more than 86%. . The size of the reactor is: D15cm×H 95em, the total effective volume is 23.7L, the reflux ratio is 100-200%, the dosage of ozone is 1.75g / L, the ultrasonic power is 300W, and the ultraviolet radiation wavelength is UV 254 , The reaction time is 30min. Influent COD Cr 270~310mg / L, UV 254 / US / H 2 o 2 Combination technology synergistically catalyzes O 3 The effluent COD of the oxidation tower is 100-130mg / L, and the average removal rate of COD is 58-60%.

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Abstract

The invention belongs to a multi-technology synergetic catalysis advanced micro-bubble ozone oxidation tower mainly aiming at the treatment of refractory industrial wastewater. Influent (1) and O3 generated by an ozone generator (24) are injected into a water distribution cabin through a dissolved gas pump (5) and enter a micro-bubble release contact area (7) through a pore plate to release dissolved gas; Liquid which contains slag flows upwards and enters a floating slag separation area (8), liquid which contains no slag flows downwards and enters a gas-liquid separator (9), one part of effluent (10) is drained from a drain hole (11), and one part of the effluent (10) is refluxed to a dissolved gas pump intake pipe (12); an ultrasonic vibrator (13) and an ultraviolet light source (14) provide an ultrasonic and ultraviolet synergetic catalysis action; floating slag overflows to a collecting groove (15) and is drained through a drain hole (16); and a coagulant, powder activated carbon and hydrogen peroxide are added by adding systems (2, 3, 4) to provide a coagulation action and the synergetic catalysis action of PAC (powdered activated carbon) and H2O2. Tail gas is refluxed to the ozone generator through a drain hole (17), a one-way valve (18), gas suction tanks (19 and 20) and a dryer (23). The oxidation tower is compact in structure and has high treatment efficiency.

Description

technical field [0001] The invention belongs to advanced ozone oxidation wastewater treatment equipment, mainly aimed at the treatment of refractory industrial wastewater, and specifically a novel multi-technology synergistic catalytic micro-bubble ozone advanced oxidation tower. Background technique [0002] Industrial wastewater generally has the characteristics of complex components, refractory biodegradation, toxicity and harmfulness, and simple biochemical treatment methods are difficult to achieve the expected treatment effect. Therefore, on the basis of biochemical treatment methods, supplementing physical and chemical treatment in pretreatment units or advanced treatment units has become the main trend to achieve standard treatment of refractory industrial wastewater. [0003] Based on the common aeration contact oxidation tower, the present invention combines various synergistic catalytic technologies such as coagulation air flotation, ultrasonic synergistic catalys...

Claims

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Application Information

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IPC IPC(8): C02F1/72C02F1/78C02F1/52C02F1/24C02F1/36C02F1/32
Inventor 田智勇宋永会崔荣涛涂响钱锋魏健李斌武腾
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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