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Photocatalysis-biology combined sewage treatment method

A technology of sewage treatment and photocatalysis, applied in biological water/sewage treatment, special compound water treatment, light water/sewage treatment, etc., can solve secondary pollution and other problems, achieve enhanced effect, reduce cost, and avoid secondary pollution Effect

Active Publication Date: 2017-12-19
广东水牛环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there are unfavorable problems such as secondary pollution in the water treatment by biological methods, which need to be further optimized.

Method used

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  • Photocatalysis-biology combined sewage treatment method
  • Photocatalysis-biology combined sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The preparation method of the above-mentioned aerobic microbial reactor includes preparing the aerobic microbial material, which includes activating the aerobic microorganisms, mixing the activated aerobic microorganisms with fillers to obtain a mixture, and then putting the carrier into the mixture for soaking. In detail, the above-mentioned filler can include graphite powder and sodium alginate with a weight ratio of 1-2:1, and the carrier can be a porous microbial carrier; the above-mentioned soaking can be carried out in the following manner: the carrier is soaked in the mixture of filler and aerobic microorganism , and then turn on the ultrasonic vibration, the vibration frequency can be 100-200Hz, and the time can be 20-30min. After soaking, take out the carrier and dry it. Sodium alginate has the functions of thickening and stabilizing. Adding sodium alginate to the filler can, on the one hand, stably fill the microbes in the pores of the carrier, so that the amou...

Embodiment 1

[0029] Prepare the aerobic microbial material in the aerobic microbial reactor: mix graphite powder and sodium alginate with a weight ratio of 1:1, and then add activated aerobic microorganisms to obtain a mixture; soak the carrier in the mixture, and Under the condition that the vibration frequency is 100Hz, vibrate for 30min.

[0030] Prepare the anaerobic microbial material in the anaerobic microbial reactor: mix graphite powder and sodium alginate with a weight ratio of 1:1, and then add activated anaerobic microorganisms to obtain a mixture; soak the carrier in the mixture, and Under the condition that the vibration frequency is 100Hz, vibrate for 30min.

[0031] After coarse filtration, the sewage is passed into the aerobic microbial reactor for primary biological treatment. The flow rate of the sewage flowing through the aerobic microbial reactor is 2m / h, and the temperature of the aerobic microbial reactor can be controlled at 28°C. After the primary biological treatm...

Embodiment 2

[0035] Prepare the aerobic microbial material in the aerobic microbial reactor: mix graphite powder and sodium alginate with a weight ratio of 2:1, and then add activated aerobic microorganisms to obtain a mixture; soak the carrier in the mixture, and Under the condition that the vibration frequency is 200Hz, vibrate for 20min.

[0036] Prepare the anaerobic microbial material in the anaerobic microbial reactor: mix graphite powder and sodium alginate with a weight ratio of 2:1, and then add activated anaerobic microorganisms to obtain a mixture; soak the carrier in the mixture, and Under the condition that the vibration frequency is 150Hz, vibrate for 25min.

[0037] After coarse filtration, the sewage is passed into the aerobic microbial reactor for primary biological treatment. The flow rate of the sewage flowing through the aerobic microbial reactor is 10m / h, and the temperature of the aerobic microbial reactor can be controlled at 30°C. After the primary biological treat...

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Abstract

The invention relates to the technical field of sewage treatment and particularly relates to a photocatalysis-biology combined sewage treatment method. The method comprises biological treatment and photocatalysis treatment, wherein the biological treatment comprises primary biological treatment and secondary biological treatment; and the photocatalysis treatment comprises primary photocatalysis treatment and secondary photocatalysis treatment. According to the sewage treatment method, various pollutants including various soluble or insoluble organic matters in sewage can be effectively removed, and ammonia nitrogen, organic carbon and the like can be well removed; multiple raw materials used in the method can preserve the properties of long-term validity, repeated use and the like, so that the sewage treatment cost can be effectively lowered; and the problems of secondary pollution and the like during sewage treatment can be avoided, and the sewage treatment effect can be improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, and in particular to a sewage treatment method combined with photocatalysis and biology. Background technique [0002] Photocatalysis is a promising water treatment technology, because it can use sunlight or ultraviolet rays to degrade a variety of pollutants, so it has a wide range of application prospects. Photocatalytic technology uses a single conductor material as a catalyst. When light with energy equivalent to the semiconductor band gap irradiates the surface of the catalyst, it will excite the electrons in the semiconductor to transition from the valence band to the conduction band, forming a highly active electron-space Hole pairs, and further induce a series of redox reactions, so as to achieve the purpose of removing pollutants. However, the current cost of using photocatalytic technology is relatively high, and the effect of photocatalytic water pollution control can be furt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/30C02F3/10C02F3/28C02F3/34C02F3/32C02F101/36
CPCC02F1/30C02F3/10C02F3/28C02F3/325C02F3/34C02F3/347C02F9/00C02F2101/30C02F2101/36C02F2305/10Y02W10/10
Inventor 刘超徐启翔王晨徐桂龙张春朱义松
Owner 广东水牛环境技术有限公司
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