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Sewage treatment device, method and system

A technology of sewage treatment device and sewage treatment method, applied in water/sewage treatment, oxidized water/sewage treatment, water/sludge/sewage treatment, etc. Sewage treatment effect and COD reduction effect

Pending Publication Date: 2018-02-09
SUZHOU JUZHI TONGCHUANG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide a sewage treatment device to alleviate the technical problem of low ozone utilization efficiency caused by uneven gas-liquid mixing in the treatment equipment of the prior art

Method used

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  • Sewage treatment device, method and system
  • Sewage treatment device, method and system
  • Sewage treatment device, method and system

Examples

Experimental program
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Effect test

Embodiment 1

[0073] Such as figure 1 As shown, the present embodiment is a sewage treatment device, including a gas-liquid mixing unit and an oxidation unit 40 connected to the gas-liquid mixing unit; the gas-liquid mixing unit includes a sewage pump 10, a gas-liquid ejector 20 and a gas-liquid mixing Device 30; the gas-liquid mixer 30 includes five mixing columns, and the mixing column is provided with helical blades. The gas-liquid mixer 30 has an aspect ratio of 0.12 and a volume fraction of 15%. Wherein, the air-liquid ejector 20 is a conventional type air-liquid ejector. The oxidation unit 40 includes a fixed-bed catalytic oxidation column, wherein the fixed-bed catalytic oxidation column is filled with catalytic packing, and the volume of the catalytic packing is 23% of the column volume. The catalytic filler includes alumina, inorganic binder, organic binder and manganese dioxide, and the specific surface area of ​​alumina is 400m 2 / g. The ratio of the column diameter of the fi...

Embodiment 2

[0075]This embodiment is a sewage treatment device, comprising a gas-liquid mixing unit and an oxidation unit connected to the gas-liquid mixing unit; the gas-liquid mixing unit includes a sewage pump, a gas-liquid jet, and a gas-liquid mixer connected in sequence; the gas-liquid mixer It includes five mixing columns with helical blades inside. The helical blades include left helical blades and right helical blades, the left helical blades and right helical blades are alternately arranged in the mixing column along the axial direction of the mixing column, and the left helical blades and right helical blades are alternately arranged in the mixing column at an angle of 30° , and the helical blade is a 180° twisted helical blade. The aspect ratio of the gas-liquid mixer is 0.12, and the volume fraction is 15%. Wherein, the gas-liquid ejector is a conventional type of gas-liquid ejector. The oxidation unit includes a fixed-bed catalytic oxidation column, wherein the fixed-bed c...

Embodiment 3

[0077] This embodiment is a sewage treatment device, and the difference from Embodiment 2 is that the helical blade 32 in the mixing column 31 is divided into a left helical blade and a right helical blade, wherein the left helical blade and the right helical blade are separated by 90 in the mixing column 31. ° Angle misalignment is set alternately, such as figure 2 Shown, others are identical with embodiment 2.

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Abstract

The invention provides a sewage treatment device, method and system, and relate to the technical field of sewage treatment. The sewage treatment device comprises a gas-liquid mixing unit and an oxidation unit connected with the gas-liquid mixing unit, wherein the gas-liquid mixing unit comprises a sewage pump, a gas-liquid jet device and a gas-liquid mixer that are connected with one another in sequence; and the gas-liquid mixer comprises at least one mixing column, wherein helical blades are arranged in each mixing column. By adopting the sewage treatment device, the technical problem that the utilization efficiency of ozone is low due to non-uniform mixing of gas and liquid in treatment equipment in the prior art can be relieved, and a technical effect of improving the utilization efficiency of the ozone can be achieved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device, method and system. Background technique [0002] In the past two decades, China's printing and dyeing, chemical, pharmaceutical and other industries have entered a period of rapid development, and the accompanying industrial wastewater has also increased. Wastewater discharged from industrial production often contains a large amount of refractory organic matter and toxic and harmful substances. If it is not properly treated, it will seriously affect the ecological environment and human health. In view of the high Chemical Oxygen Demand (COD) and high chroma of industrial wastewater, traditional biological treatment has little degradation effect, and advanced oxidation technology has become the current choice for this type of wastewater due to its unique advantages such as strong oxidation capacity and fast oxidation rate. Handle one of the hot...

Claims

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Application Information

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IPC IPC(8): C02F1/78C02F1/72B01F5/00B01F5/06B01F5/02
CPCC02F1/725C02F1/78B01F25/00B01F25/20B01F25/4314B01F2101/305
Inventor 金艳宋兴福唐波张建海黄伙
Owner SUZHOU JUZHI TONGCHUANG ENVIRONMENTAL PROTECTION TECH
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