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Method for sewage disposal and devices for sewage disposal

A sewage treatment method and a sewage treatment device technology, which are applied in the field of water treatment, and can solve problems such as efficacy inhibition, low sterilization speed, and large energy consumption

Inactive Publication Date: 2013-02-13
WUXI YU FISH FISHERY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing ultraviolet sterilization on the market mostly uses ultraviolet rays with a wavelength of 254nm, and does not add oxidants. Due to the long wavelength, the energy density is low, and it can only sterilize, and does not have the functions of photolysis and intensified oxidation ("Light Chemical Water Pollution Control"), and Inhibition of efficacy in chlorine-containing environment ("water disinfection and natural organic matter water sterilization and natural organic matter")
Its sterilization speed is low, so it takes a long time and consumes a lot of energy. At the same time, it cannot effectively decompose harmful chemicals such as dyes, hydrogen sulfide, monochloromethane, chloroform and benzene like strong oxidants.

Method used

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  • Method for sewage disposal and devices for sewage disposal
  • Method for sewage disposal and devices for sewage disposal
  • Method for sewage disposal and devices for sewage disposal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] according to figure 2 , image 3 with Figure 4 The sewage treatment plant shown performs sewage treatment. The sewage treatment device includes: an inner channel a, an outer channel b, a first quartz tube c, a second quartz tube d, an ultraviolet emitting device e, a housing f, and an upper cover g, and the ultraviolet emitting device is an ultraviolet lamp tube , the ultraviolet light tube is fixed on the upper cover g through a fixing member, and is located in the first quartz tube. Figure 4 After the equipment is completed, get as Figure 5 Sewage processor shown.

[0069] Sewage with water treatment capacity of 50,000 m 3 / day into the inner channel, the peak flow rate is 2500m 3 / h, the inlet COD 100mg / m is detected by the water quality detector 3 , the number of E. coli 1X10 6 / L. The number of ultraviolet lamps used by the processor is 300. Among them, 270 lamps can excite 185nm wavelength ultraviolet rays, 30 lamps can excite 254nm wavelength ultravi...

Embodiment 2

[0072] according to Figure 5 The shown sewage treatment device performs sewage treatment, including a stirring shaft 1 , an ultraviolet emitting device 2 , a water quality monitor 3 , paddles 4 , a fixing frame 5 , a water outlet 6 and a housing 7 . The ultraviolet emitting device is an ultraviolet lamp tube, and the ultraviolet lamp tube is fixed on a fixed frame independent of the rotation axis through a fixing piece. The water flows from top to bottom, first flows through the lamp tube located on the upper part of the rotating shaft, and accepts 185nm wavelength ultraviolet photolysis and intensified oxidation when it is within 1cm; the water rotates down and leaves the stirring shaft at the same time, and the lamp tube receives 254nm ultraviolet wavelength radiation within 1m Sterilize. Lamp diameter 2cm, length 0.8m

[0073] Sewage water treatment capacity of 20,000 m 3 / day, peak flow 1000m 3 / h, the inlet COD 100mg / m is detected by the water quality detector 3 , t...

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Abstract

The invention provides a method for sewage disposal. The method comprises that sewage is irradiated through first ultraviolet rays, a first disposal liquid and ozone are obtained, wave lengths of the first ultraviolet rays are in a range from 180nm to 260nm, the obtained first disposal liquid and the obtained ozone are irradiated through second ultraviolet rays, clear water and oxygen are obtained, and wave lengths of the second ultraviolet rays are in a range from 250nm to 260nm. By the aid of the method, the sterilization can be achieved, and harmful chemical matters in water can be removed. The invention also provides two devices for sewage disposal.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a sewage treatment method and a device thereof. Background technique [0002] Pollutants in sewage include microorganisms, heavy metals, chemical substances, sediment, etc. Among them, the concentration of microbial chemical substances is measured by COD. Generally, the COD value is below 50 to meet the drinking water standard. General sewage treatment methods include: biodegradation, physical filtration, chlorine gas Germicidal and UV germicidal, and hybrid technologies in both. [0003] Biological method: the use of microorganisms to degrade organic matter such as cyanobacteria. The advantage is low cost, and the disadvantage is that it occupies a large area, the processing speed is slow, and microorganisms have requirements for the water environment. In general natural water bodies, the degradation of pollutants is the fastest in aerobic conditions, followed by anoxic conditio...

Claims

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Application Information

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IPC IPC(8): C02F1/32
Inventor 章燕梁晗庄冉宏宇
Owner WUXI YU FISH FISHERY SCI & TECH