Introduction
The main support content and processes can be divided into two parts:
? Technical support for ultraviolet disinfection processes (UV disinfection) for disinfection needs;
? Support for ultraviolet advanced oxidation of pollutants (UV-AOP).
UV disinfection support content and processes
Water quality assessment → UV dose calculation → System selection → Installation and commissioning → Operation and maintenance
? Water quality assessment: UVT (254 nm transmittance), SS, particle size distribution, and microbial indicators;
? Dose calculation: According to USEPA/national standards, 40 mJ/cm2 for drinking water and 15–25 mJ/cm2 for wastewater;
? Equipment selection: Low-pressure, high-output vs. medium-pressure lamps, number of lamps, and online cleaning method (mechanical/chemical);
? Installation and commissioning: Lamp concentricity, quartz sleeve cleanliness, and ballast power calibration;
? Operation and maintenance: Monthly light intensity testing, annual lamp replacement, and cleaning cycle setting.
Ultraviolet Advanced Oxidation (UV-AOP) Support Content and Process
From Experimentation to Engineering: Pilot/Pilot Test → Process Package Development → Equipment Skid Installation → Automated Operation → Performance Evaluation
? Experimental Phase: Determine the optimal UV dose, oxidant dosage ratio, pH, and reaction time;
? Process Package: Reactor type (tubular/trough/spiral flow), lamp power density, online cleaning, and exhaust gas treatment;
? Product Design: Metering pump, static mixer, UV reactor, H?O? residual decomposition (activated carbon or NaHSO?);
? Automated Control: PLC closed-loop control of oxidant dosage based on online ORP or COD signals;
? Performance Evaluation: COD, TOC, characteristic pollutant removal rate, acute toxicity reduction, and byproducts below detection limit.
Parameter
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