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Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and ozone

A technology for ozone treatment and sewage, applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of insignificant effect, suffocation and killing of aquatic organisms and microorganisms for a long time

Inactive Publication Date: 2009-08-05
李三山
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it takes a long time to suffocate and kill aquatic organisms and microorganisms with this method, and the effect on anaerobic microorganisms and eggs or spores of certain aquatic organisms in the dormant period is not obvious
[0057] Through the above technical background introduction and analysis, it can be found that there is currently no single "three water" treatment technology for ships that can fully meet the following four requirements at the same time: ① It can eliminate oil, organic Chemical pollutants, ② can kill aquatic organisms and pathogens in the water, ③ can start operation at any time (not docking) ④ rely on high-intensity processing capacity, and can handle a very large number of ships in a short period of time” Sanshui" and make it up to standard

Method used

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  • Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and ozone
  • Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and ozone
  • Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and ozone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0093] In the following embodiments 1~3:

[0094] The test samples were self-prepared: the water samples were taken from the starting point of the trestle bridge of the Beilun Port Oil Wharf in Ningbo, Zhejiang (the sampling depth is between 1.5 and 2 meters), and 0 # Diesel oil 40g, and strong stirring will increase the oil content of 200mg / L;

[0095] The 24kHz and 40kHz transducers are produced by Hangzhou Rayleigh Ultrasonic Devices Company;

[0096] 100kHz and 850kHz transducers are produced by Hitachi, Japan;

[0097] The water quality monitor adopts the BA-200 oil-in-water analyzer produced by the American ISI company;

[0098] Biological detection adopts TEMPO produced by French Mérieux company Microbial quantitative detector, measuring the number of colonies (cfu, colony forming units) per unit volume of water after cultivation;

[0099] The booster pump adopts the QJB10A high-pressure metering pump produced by Zhejiang Qianjiang Pump Industry Company.

[0100] ...

Embodiment 1

[0103] Mix 24kHz+40kHz ultrasonic waves with a power ratio of 1:2 to irradiate the water to be treated, and add ozone at the same time. The amount of ozone used is 1 mg / L water, and the ratio of the water intake in the branch water inlet pipeline to the water inlet pipeline in the main road water inlet pipeline is 1:10.

[0104] The test results are compared with the changes in water quality using only ozone and only 24kHz+824kHz mixed-frequency ultrasound in Table 1.

Embodiment 2

[0106] Mix 24kHz+100kHz ultrasonic waves with a power ratio of 1:2 to irradiate the water to be treated, and add ozone at the same time.

[0107] The amount of ozone used is 2mg / L water, and the ratio of the water intake in the branch water inlet pipeline to the water inlet pipeline in the main road is 1:50.

[0108] See Table 1 for the test results compared with the changes in water quality using only ozone and only using 24kHz+824kHz mixed-frequency ultrasound.

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Abstract

The invention relates to the technical field of sewage treatment, and aims to provide a method for comprehensively using mixed-frequency ultrasound and ozone to treat sewage. The treated sewage enters the mixing reactor from the main water inlet pipe, and then it is fully filled and runs continuously. The booster pump is also used to provide high-speed jet water for the ejector installed on the branch water inlet pipe, and the ejector is drawn from its gas. The inlet introduces the ozone in the ozone supply device, and the branch feed water mixed with ozone enters the mixing reactor through the branch feed water pipeline. Using this method to treat the "three waters" of ships containing oil and various organic chemical pollutants as well as aquatic organisms and pathogens can not only eliminate oil and organic chemical pollutants in the "three waters" of ships, but also kill water Aquatic organisms and pathogens must be able to start operation at any time (without docking). Relying on high-intensity processing capacity, it can handle a very large number of "three waters" in a short period of time and make them meet the standards.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for comprehensively using frequency-mixed ultrasound and ozone to treat sewage. Background technique [0002] Among all kinds of sewage, sewage containing oil, organic pollutants, aquatic organisms and pathogens occupies a large proportion. Among them, the "three waters" of ships are very representative. [0003] The "three waters" of a ship (the general term for ballast water, tank washing water and engine bilge water) are materials that must be used or generated in the daily shipping business of a ship. Due to actual technical conditions and water sources, the "three waters" must contain oil or organic chemical pollutants, as well as aquatic organisms and pathogens that have moved from other places. Since the "three waters" inevitably need to be discharged or replaced, it will bring oil and organic chemical pollution to the discharged waters and land, as wel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F1/78C02F1/36C02F101/32
Inventor 李三山
Owner 李三山