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Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and non-reducing gas

A gas mixing and sewage technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of suffocating and killing aquatic organisms and microorganisms for a long time, and the effect is not obvious

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

AI Technical Summary

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 non-reducing gas
  • Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and non-reducing gas
  • Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and non-reducing gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0097] In the following embodiments 1~3:

[0098] 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;

[0099] The 24kHz and 40kHz transducers are produced by Hangzhou Rayleigh Ultrasonic Devices Company;

[0100] 100kHz and 850kHz transducers are produced by Hitachi, Japan;

[0101] The water quality monitor adopts the BA-200 oil-in-water analyzer produced by the American ISI company;

[0102] Biological detection adopts TEMPO produced by French Mérieux company Microbial quantitative detector, measuring the number of colonies per unit volume of water after cultivation (ufc, colony forming units);

[0103] The booster pump adopts QJB10A high-pressure metering pump produced by Zhejiang Qianjiang Pump Industry Co., Ltd.

[0104] Exc...

Embodiment 1

[0107] The water to be treated is irradiated with ultrasonic waves with a frequency mixing frequency of 24kHz+40kHz at a power ratio of 1:2, and then gas is introduced to compare the changes in water quality.

[0108] The gas used is oxygen, and its dosage is 0.1L / L water. The ratio of the water intake in the branch water inlet pipeline to the water inlet pipeline in the main road is 1:10, and the total water treatment capacity is 1L / min.

[0109] The test results are shown in Table 1.

Embodiment 2

[0111] The water to be treated is irradiated with ultrasonic waves with a frequency mixing frequency of 24kHz+100kHz at a power ratio of 1:2, and then gas is introduced to compare the changes in water quality.

[0112] The gas used is compressed air, and its consumption is 1L / L of water. The ratio of water intake in the branch water inlet pipeline to that in the main water inlet pipeline is 1:50, and the total water treatment capacity is 1L / min.

[0113] The test results are shown in Table 1.

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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 non-reducing gas to treat sewage. The sewage to be treated 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. The introduction port introduces the non-reducing gas from the gas supply device, and the branch feed water mixed with the gas enters the mixing reactor through the branch feed pipe. 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 mixed-frequency ultrasound and non-reducing gas 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 l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F1/74C02F1/36C02F101/32
Inventor 李三山
Owner 李三山