The water plant has a maximum daily flow rate of 24,000 tons/day and a total of 3 water passing pipelines. There is one ultraviolet device at the end of each pipeline. The current operation mode is that 3 UV equipments are turned on at the same time.
Ultraviolet disinfection equipment is composed of ultraviolet disinfector, automatic control and control cabinet, etc. It has the functions of tired time, sound and light alarm and switch. Using a light source with a wavelength of 185nm can stimulate the light decomposition of water molecules. These hydroxyl groups with extremely high energy will attack organic compounds, and TOC is completely oxidized and decomposed into carbon dioxide and water.
In water purification plants, the detection of algae mainly includes eight types of Cyanophyta, Cryptophyta, Dinophyta, Chrysophyta, Xanthelasma, Diatoms, Euglena and Chlorophyta.
For common diatoms and green algae, through experimental tests, ultraviolet rays have a more obvious removal effect on algae in water bodies.
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references: “Water Treatment Technology and Equipment” Analysis of the effect of ultraviolet disinfection on the removal of algae in tap water
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