Combined UV sterilizer

UV disinfection principle

UV rays can be divided into UV-A (320-400nm) , UV-B (275-320nm) , UV-C (200-275nm) and vacuum ultraviolet rays according to their biological effects. In water treatment, the UV-C part of ultraviolet rays is actually used. In this band, the ultraviolet rays around 260nm have been proven to have the highest sterilization efficiency.

Guanyu UV sterilizer integrates comprehensive sciences such as optics, microbiology, mechanics, chemistry, electronics, and fluid mechanics. A specially designed high-efficiency, high-intensity, and long-life UV - C light generator is used to generate strong UV- C light to irradiate the flowing water. When bacteria and viruses in the water are exposed to a certain dose of UV- C light (wavelength 253.7nm), their cell DNA and structure are destroyed, and cell regeneration cannot proceed, thereby achieving water disinfection and purification. The spectrum with a wavelength of 185nm can also decompose organic molecules in the water, generate hydrogen radicals, and oxidize organic molecules in the water into carbon dioxide, thereby achieving the purpose of removing TOC.

Ultraviolet disinfection has the following advantages:

★High efficiency sterilization rate: Ultraviolet rays can generally achieve a sterilization rate of-%--% for bacteria and viruses within one to two seconds.

★Broad-spectrum sterilization: The broad-spectrum sterilization of ultraviolet light is the highest at present, and it has a high efficiency in killing almost all bacteria and viruses.

★No secondary pollution: UV sterilization does not require the addition of any chemical agents, so it will not cause secondary pollution to the water body and the surrounding environment. It does not change any components in the water.

★Safety and environmental protection: Traditional disinfection technologies such as chloride or ozone use highly toxic and flammable substances. However, there is no such safety hazard in the ultraviolet disinfection system.

★Low cost: Ultraviolet disinfection equipment has the advantages of small footprint, easy installation, low operating cost and small total investment. The operating cost is 1/2 of chlorine disinfection.

Guanyu UV sterilizer disinfection equipment features

★ Imported lamps: high efficiency, long life

The equipment uses imported lightsources/Philips ultraviolet lamps, which have high-intensity output, high conversion rate, long life, good reliability, and good continuous sterilization and disinfection effect;

★ Professional customized ballast

The electronic ballast used in the equipment with stable performance and high matching is specially produced and customized for this product, and has the characteristics of strong adaptability, high matching, long life and complete protection functions;

★ Imported quartz sleeve

The high purple transmittance and high sterilization rate casing is made of pure imported raw material quartz from Pacific Ocean, which has good matching and high purple transmittance (the ultraviolet purple transmittance is above -%).

★ Big brand pharmaceutical (food) grade 316 (304) stainless steel raw materials

The product adopts customized production of plates and pipes, and the main parts are cut, punched and cut by laser. The product has uniformity, consistency, interchangeability, aesthetics, high precision, small error, easy installation, fast and efficient, saving time, effort and labor

Factors Affecting the Sterilization Effect of Ultraviolet Light

★ Ultraviolet transmittance (UVT)

The important factors that affect the UV sterilization effect are the UV transmittance of the sterilization medium (water) or the medium absorptivity (absorbance). The UV transmittance and the medium absorptivity are affected by factors such as dissolved organic matter, inorganic matter and undissolved suspended matter in the water.

★ Total suspended particulate matter (TSS)

The effect of suspended particles on the sterilization effect of ultraviolet rays is also very obvious. Suspended particles can absorb and reflect ultraviolet rays, thereby preventing ultraviolet rays from irradiating the DNA of bacteria and viruses. In addition, suspended particles will also accelerate the scaling and contamination of the quartz sleeve, thereby affecting the sterilization effect.

★ Particle size

The size of particles in the water has a great influence on the effect of UV sterilization, because large suspended particles will form shadows and dead corners for the protection of bacteria and viruses. Usually the effluent from the secondary sedimentation tank is more conducive to UV sterilization, and the average size of suspended particles in the water should be less than 30um.

★ Exposure time

Exposure time is related to flow rate. When designing a UV system, it is usually designed according to the peak direct flow rate. The smaller the flow rate, the longer the exposure time, and the greater the effective dose of the system.

The inactivation effect of ultraviolet disinfection on microorganisms in water

The bactericidal efficiency of UV technology against common bacteria and viruses (UV radiation intensity 30mW/cm ²)

Common bacteria UV disinfection various sterilization effects required dosage

Dosage required for UV disinfection of bacteria and microorganisms (-% sterilization effect)

Best conditions for using UV sterilizer

Iron content: no more than 0.3ppm (0.3mg/L)

Suspended solids: not more than 10 ppm (10 mg/L)

Water hardness: not more than 120 mg/L

Water temperature: 5℃~60℃

Hydrogen sulfide: not more than 0.05 ppm (0.05 mg/L)

Manganese content: not more than 0.5ppm (0.5 mg/L)

Chroma: No more than 15 degrees

Application range of UV sterilizer

★Water disinfection for deep processing of food, beverages, pharmaceuticals, and fruits, etc.

★Ultrapure water for the electronics industry, outdoor water supply systems for military camps

★Disinfection of water used in hospitals and laboratories, and wastewater with high pathogen content

★ Drinking water disinfection in residential areas, office buildings, hotels, restaurants, water plants, etc.

★ Aquaculture, marine aquaculture, freshwater seedling cultivation, aquatic product processing, purification and disinfection, etc.

★ Disinfection of urban sewage, reclaimed water and landscape water

★ Water disinfection for swimming pools and water parks

★ Thermal power, industrial production cooling water, central air conditioning system cooling water disinfection

★ Disinfection of water used in biological, chemical pharmaceutical and cosmetic production

★Disinfection and purification required for high-end environments such as agricultural breeding, agricultural greenhouses, agricultural irrigation, etc.

Features

★Highly efficient fully automatic mechanical cleaning device ( pneumatic cleaning type ) ensures that the normal operation of the disinfection system is not affected during cleaning and no human operation is required

★Patented product with intellectual property rights, water pressure-driven cleaning system, convenient, fast, environmentally friendly, energy-saving, no noise pollution

★External distribution box, can be placed in a separate space and cavity for separate operation

★The whole machine is made of SUS304/316L (optional) stainless steel, polished inside and outside, with the characteristics of high cleanliness, good disinfection effect, environmental protection and hygiene

★Equipped with ultraviolet intensity monitoring system, which is convenient for monitoring the scaling of quartz tube and the change of ultraviolet lamp intensity (optional)

★Equipped with working indicator light, working cumulative hour meter, alarm system (optional)

★Equipped with high light transmittance, imported raw material quartz sleeve and high stability medium/low pressure sterilization lamp, the service life is up to

12000 hours

★Equipped with ultraviolet special ballast, stable operation to ensure the life and efficiency of ultraviolet germicidal lamp

Technical Parameters

Note: The water treatment capacity of the above products is for reference only. Different industries and water qualities require different models. The selection parameters are subject to actual working conditions.