Longking EnTech Europe Ultraviolet Water Disinfection: Efficiency, Safety, and Cutting-Edge Technology
Harnessing UV Light for Advanced Water Disinfection: A Technical Perspective
As global demand for safe, high-quality water continues to rise, conventional disinfection methods are increasingly challenged by resilient microorganisms and the need for more sustainable, chemical-free treatment solutions. Among the most effective and environmentally responsible alternatives is ultraviolet (UV) disinfection, particularly for open-channel applications such as municipal, industrial, and wastewater reuse systems.
At Longking EnTech Europe, we specialize in high-efficiency UV technologies tailored to meet the strictest demands of water treatment. This article explores the science, technical advantages, and practical applications of UV disinfection — and why it is becoming the preferred solution worldwide.
Why UV? Addressing the Limitations of Chemical Disinfection
Traditional chemical disinfectants such as chlorine are widely used, but they come with several well-known drawbacks:
❌ Ineffectiveness against chlorine-resistant pathogens like Cryptosporidium and Giardia
❌ Generation of disinfection by-products (DBPs) such as trihalomethanes (THMs)
❌ Chemical handling risks, taste and odor issues
❌ Complex logistics for chemical dosing and storage
In contrast, UV disinfection provides a physical, residue-free barrier against a broad spectrum of microorganisms — offering enhanced performance and operational simplicity.
The Science of UV-C: Precise, Powerful, and Immediate
Ultraviolet disinfection works by exposing water to UV-C light at a wavelength of 254 nanometers, which penetrates microbial cells and damages their DNA and RNA. This prevents replication and renders pathogens inactive within seconds of exposure — without introducing any foreign substances into the water.
Key performance metrics include:
✅ UV Dose (mJ/cm²): The product of light intensity and exposure time.
✅ Transmittance (UVT): A measure of how well the UV light passes through water.
✅ Log Reduction: Quantifies microbial inactivation (e.g., 4-log = 99.99%).
Longking's NLQ UV Systems: Engineered for Performance
Our NLQ series of UV systems are designed specifically for open-channel disinfection of municipal and industrial flows, combining cutting-edge engineering with advanced control systems to ensure optimal performance and minimal energy use.
Key Features:
Horizontal and Vertical Configurations – adaptable to varied hydraulic designs
Low-Pressure, High-Output UV Lamps – with extended lifespan and energy efficiency
Integrated UV Sensors – real-time monitoring of UV intensity and dose
Modular Design – scalable from small plants to high-flow municipal systems
Remote Monitoring Ready – via our optional SENTINEL control platform
These systems are designed to maximize pathogen inactivation while minimizing footprint, maintenance, and operational costs.
Proven Results Across Industries
UV disinfection technology is now a key component in diverse water treatment applications, thanks to its high efficiency, operational safety, and regulatory acceptance:
Municipal drinking water plants – Provides robust protection against bacteria, viruses, and chlorine-resistant protozoa like Cryptosporidium and Giardia, without affecting taste, odor, or creating harmful by-products.
Wastewater treatment plants – UV is ideal for tertiary disinfection, ensuring microbiological safety for discharge or reuse while eliminating the need for chemical residuals.
Industrial Wastewater Reuse – Delivers consistent disinfection in cooling systems, CIP loops, and ultrapure water circuits — minimizing biofilm formation and chemical dependency.
Aquaculture – Ensures pathogen control without affecting aquatic life or requiring chemical neutralization.
Environmental and Economic Benefits
No Chemical Residues
UV disinfection leaves no harmful residuals in treated water or the environment.
Energy-Efficient Operation
Thanks to optimized lamp control and real-time dose regulation, Longking systems consume less energy per m³ treated.
Reduced Maintenance
Our low-pressure UV lamps have extended service life (up to 16,000 hours), and systems are designed for tool-free replacement and intuitive control.
Lower Total Cost of Ownership (TCO)
With no need for chemical procurement, storage, or handling, operational costs are significantly lower over the system lifecycle.
Longking EnTech Europe: Your UV Partner for Open-Channel Disinfection
At Longking EnTech Europe, we bring proven expertise in UV and ozone disinfection systems. Our commitment to R&D, robust engineering, and end-to-end service — from project design to commissioning and post-sale support — ensures you get a future-proof, regulation-ready solution.
Whether you're upgrading a municipal plant, designing a new industrial reuse system, or implementing advanced treatment for pharmaceutical applications, our UV systems offer unmatched reliability and disinfection performance.
Service, Support & Sustainability
We don’t just supply equipment — we build partnerships:
Factory testing and FAT reports
Onsite commissioning and operator training
Maintenance plans & spare part logistics
Performance validation via bioassays and UV/ozone dose monitoring
Backed by ISO 9001 / 14001 / 45001 certifications, we ensure compliance and performance at every stage.
With thousands of UV disinfection systems installed globally, Longking EnTech Europe is committed to protecting water resources through clean, chemical-free technologies that ensure public health and environmental sustainability.
UV is not the future — it’s the now. And Longking EnTech is here to help you deploy it efficiently, safely, and sustainably.
For more information, contact our commercial department at info@longkingeu.com .