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Coupling field oxidation sewage treatment method

A technology of sewage treatment and coupling field, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. A wide range of effects with a wide range of applications

Inactive Publication Date: 2003-07-09
陈曦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of new technology, it is mainly to improve reaction conditions such as temperature and pressure and to apply energy (wave) fields, such as ultraviolet rays, ultrasonic waves, and magnetic fields, etc., but they all use a single energy field, and the effect of improving oxidation is not satisfactory.

Method used

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  • Coupling field oxidation sewage treatment method
  • Coupling field oxidation sewage treatment method
  • Coupling field oxidation sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The technological process of embodiment is as attached figure 1 shown. Magnetization treatment adopts permanent magnet magnetization, magnetic induction intensity 0.01T. Coupling field oxidation adopts magnetic field and ultrasonic coupling, the magnetic induction intensity of permanent magnetic field is 0.01T, the magnetic induction intensity of electromagnetic field is 2T, and the ultrasonic frequency is 60,000 Hz. PC-3 ozone generator for mixed oxidant, through compressed air, O 3 content about 23%, O 2 About 46% others are O - and O.

[0039] The sewage is artificially prepared by adding phenol, diesel oil, and brilliant red dyes from aquatic product processing wastewater. The indicators are as follows: COD2832mg / L, BOD826mg / L, SS860mg / L, oil 120mg / L, phenol 80mg / L, chroma 600 times, PH7.4, Cl - The operation results of 1400mg / L with different reaction times are shown in Table 1. The reaction time in the table is the total reaction time, wherein the coagulatio...

Embodiment 2

[0041] The coupling field oxidation of embodiment 2 adopts the coupling of magnetic field and ultraviolet rays, and the ultraviolet rays adopt broad-spectrum UV lamps with a wavelength of 200-280 nm, and other conditions are completely the same as in embodiment 1. The running results are shown in Table 1.

Embodiment 3

[0043] The coupling field oxidation of embodiment 3 adopts the coupling of ultrasonic wave and ultraviolet light, and the ultraviolet light adopts broad-spectrum UV lamp with a wavelength of 200-280 nm, and other conditions are completely the same as that of embodiment 1. The running results are shown in Table 1.

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Abstract

The present invention relates to a method for treating sewage by using coupling field oxidation, and its technological process includes the following steps: firstly, making the sewage undergo the processes of magnetization treatment, primary coagualting reaction and precipitation to remove suspended matter, then feeding said sewage into first coupling field oxidation pool to make oxidation, and making the oxidated water undergo the processes of coagulation reaction, precipitation and secondary coupling oxidation so as to implement said invention. Its coupling oxidation is implemented by using mixed oxidant containing O-, O2, O and O3 in coupling field formed from at least two both of magnetic field, ultrasonic wave and UV light. Said method is good in treatment effect, can effectively remove COD, BOD, SS, N, P, chromaticity and abnormal smell, etc. in the water.

Description

technical field [0001] The invention belongs to the technology of sewage treatment, in particular to the method of oxidation with oxygen and ozone under the coupling action of ultraviolet light, ultrasonic wave and magnetic field to treat sewage. Background technique [0002] my country's fresh water resources are seriously short of water, and its per capita share is only 1 / 4 of the world's average. The distribution is extremely uneven, and the northern region is seriously short of water. The annual discharge of sewage in China is more than 40 billion tons, the treatment rate is low, the water pollution is very serious, and the task of sewage treatment is still very heavy (State Environmental Protection Administration China Environmental Bulletin 2000). It is an important goal of my country's environmental protection in the near future to meet the discharge standards after sewage treatment; and the recycling of sewage to realize the resource utilization of sewage is one of t...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F9/12
Inventor 陈曦
Owner 陈曦
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