Method for increasing utilization rate of ozone jointly processing waste water with biological aerated filter

An aerated biological filter, combined treatment technology, applied in sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc. The effect of improving utilization

Inactive Publication Date: 2010-05-05
汤苏云
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Problems solved by technology

[0003] Aiming at the problem of low ozone utilization rate in the above-mentioned combined treatment process, the present invention provides a method for improving the ozone utilization rate of wastewater combined with ozone and biological aerated filter

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  • Method for increasing utilization rate of ozone jointly processing waste water with biological aerated filter
  • Method for increasing utilization rate of ozone jointly processing waste water with biological aerated filter

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Embodiment Construction

[0016] The following takes the advanced treatment of coking wastewater as an example, combined with the attached figure 1 To be specific:

[0017] A certain coking wastewater, after conventional treatment (gravity degreasing-air flotation-A / A / O-sedimentation), treated effluent COD 150mg / l (BOD is only 10mg / l), SS 40mg / l, requiring advanced treatment, The final effluent COD is less than 50mg / l. It is planned to adopt the combined treatment process of ozone oxidation + biological aerated filter. In order to improve the utilization rate of ozone, reduce the dosage of ozone, and save the treatment cost, the method for improving the utilization rate of ozone is adopted in the present invention. In order to reduce the ineffective consumption of ozone by SS in wastewater, it first passes through a quick filter to reduce SS to about 10mg / l, and then enters figure 1 The system shown (the following will enter figure 1 The water of the system shown is referred to as "waste water"). ...

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Abstract

The invention discloses a method for increasing utilization rate of ozone jointly processing waste water with a biological aerated filter, which comprises the following steps: a dissolvent air pump communicated with water is inhaled with ozone; under the pressurization of the dissolvent air pump, the ozone is dissolved in water; an air-release device decompresses and releases water dissolved with ozone to an ozone reactor so that the ozone forms micro-bubbles which fully contact with waste water entering into the ozone reactor, thus oxidizing and processing organic matter in waste water; the waste water enters into an attenuation pool after being oxidized and processed by the ozone reactor; the water coming out of the attenuation pool reenters the biological aerated filter for biology treatment and then is discharged; an automatic monitoring and controlling device is used for monitoring ozone remnant concentration in yielding water oxidized and processed by the ozone reactor in real time and automatically adjusts the ozone output quantity of the ozone reactor. The ozone addition quantity is adopted for automatically regulation control in real time, thus avoiding that the ozone quantity generated in the ozone reactor is less than the ozone quantity required by water treatment and the occurrence of waste as the ozone quality is larger than the required ozone amount; therefore, the utilization rate of the ozone is increased by 20-45%.

Description

technical field [0001] The invention relates to a waste water treatment and recycling method, in particular to a method for improving the utilization rate of ozone in waste water combined with ozone and aerated biological filter. Background technique [0002] At present, the biological aerated filter process has become a relatively advanced technology for wastewater treatment. It has the characteristics of large treatment load, high water quality and small footprint. However, for organic matter with large molecular weight, complex structure and difficult biodegradation in wastewater, the treatment rate of biological aerated filter is low. For this reason, a combined wastewater treatment process using ozone oxidation and biological aerated filter has emerged. The main principle of the combined treatment process is: firstly, use the method of ozone oxidation to convert Biochemically degraded organic matter is oxidized to small molecules and easily biodegradable organic matter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/78C02F3/12C02F3/10
CPCY02W10/10
Inventor 汤苏云
Owner 汤苏云
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