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Decontamination of Treated Wastewater By means of a Modern Ultraviolet LED Reactor System

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Adewale A. O., Abraham O. A., Paul O. I., Latifah O. O., Kayode A. B.
World News of Natural Sciences
|
2022
|
vol. 45
18-36
EN
Poor sanitation systems have been a significant contributor to high death rates in many low-income countries since they tend to promote the spread of waterborne diseases. Both the public and commercial sectors have a strong interest in developing and upgrading the health systems in these countries. Chemical oxidants that are commonly used (e.g., chlorine) signify the method most commonly used to disinfect wastewater due to some practical rewards. Nevertheless, a lot of evidence shows that harmful by-products of disinfection (DBPs) have a direct link to DBP generation. This research investigates the use of UV-LEDs to sterilize the secondary household sewage treatment system. Though UV-LED treatment has grown in popularity recently, it is still a cutting-edge method for treating domestic sewage. Domestic sewage was pretreated via an affordable pretreatment structure containing a settler inclined at an angle and a sand-medium screen before being fed into a novel flow-through ultraviolet LED reactor. Reusing processed wastewater from treatment plants that use UV-based combination processes shows outstanding potential due to a negligible impact on the environment relative to disinfection byproducts generation and effective microorganism-based disinfection at high yields, but more research is needed to confirm this (more than a three-log reduction is typical).
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