Municipal Solutions – Reliable & Sustainable Water Treatment
Ensuring safe, reliable, and sustainable water management is one of the key challenges for modern cities.
At Longking EnTech Europe, we combine more than two decades of engineering expertise to design and implement advanced ozone generation, ultraviolet (UV) disinfection, and oxidation systems tailored to municipal needs.
Our integrated approach allows municipalities to meet increasingly demanding European and WHO water standards while optimizing energy efficiency, minimizing chemical usage, and reducing operational costs.
Every installation is engineered to deliver long-term reliability, automation, and measurable environmental performance.
Municipal Water Treatment
Reliable, Sustainable, and Fully Engineered Solutions
Ensuring safe, reliable, and sustainable water management is one of the key challenges for modern cities.
At Longking EnTech Europe, we combine more than two decades of engineering expertise to design and implement advanced ozone generation, ultraviolet (UV) disinfection, and oxidation systems tailored to municipal needs.
Our integrated approach allows municipalities to meet increasingly demanding European and WHO water standards while optimizing energy efficiency, minimizing chemical usage, and reducing operational costs.
Every installation is engineered to deliver long-term reliability, automation, and measurable environmental performance.
Drinking Water Treatment – Advanced Oxidation for Safe and Stable Supply
Municipal water treatment today requires precise process control, energy efficiency, and compliance with strict health and environmental regulations.
Our ozone and UV disinfection technologies provide efficient oxidation, micro-pollutant degradation, and pathogen removal, ensuring safe, clear, and biologically stable drinking water for all communities.
Key Process Advantages
Pre-Ozonation: Improves coagulation and sedimentation, reduces turbidity, and prevents the formation of trihalomethanes (THMs) and other chlorinated by-products.
Micropollutant Removal: Advanced oxidation efficiently eliminates pharmaceuticals, pesticides, and endocrine disruptors.
Combined O₃ + GAC Process: Integrates ozone oxidation with granular activated carbon (GAC) to enhance biodegradability and overall purification.
Final UV Disinfection Barrier: Chemical-free UV treatment ensures compliance and biological safety.
Taste, Odor, and Color Control: Controlled oxidation improves water aesthetics and consumer acceptance.
Technical Highlights
Ozone Concentration: 150–296 g/Nm³ using high-frequency double micro-gap glass dielectric reactors.
Energy Efficiency: ≤7.5 kWh/kg O₃ with adaptive frequency power supply and closed-loop cooling.
CFD-Driven Optimization: Computational Fluid Dynamics (CFD) simulations ensure uniform contact and maximum gas–liquid transfer efficiency.
Smart Instrumentation: Real-time monitoring of ozone dose, contact time (CT), and dissolved ozone for precise control.
Our technologies guarantee high oxidation power, minimal chemical consumption, and safe, long-lasting disinfection performance.
Wastewater Treatment
Sustainable and Eco-Friendly Disinfection
Ozone and UV represent the next generation of wastewater disinfection and oxidation technologies.
Unlike chlorination, which creates harmful by-products, our systems ensure complete oxidation, pathogen elimination, and safe discharge or reuse of treated effluents.
Key Benefits of Ozone in Wastewater
High Oxidation Potential: Ozone (2.07 V) reacts rapidly with refractory organics, dyes, and pharmaceuticals.
Pathogen-Free Effluent: Ensures >99.99% disinfection without chemical residues.
AOP Integration: Ozone combined with UV or H₂O₂ generates hydroxyl radicals for advanced oxidation.
Eco-Friendly: Decomposes naturally to oxygen, leaving no toxic residuals.
Water Reuse Ready: Effluent meets EU standards for irrigation and environmental discharge.
Typical Applications
Final disinfection and tertiary treatment
Effluent polishing for reuse
Odor and color removal
COD and BOD reduction
Micropollutant and pharmaceutical removal
Through our ozone-based advanced oxidation processes (AOPs), we help municipalities achieve sustainable wastewater management with maximum safety and compliance.
Ultraviolet Disinfection – Safe, Chemical-Free Municipal Sanitation
In municipal wastewater treatment, ultraviolet (UV) disinfection has become the most efficient and sustainable alternative to chlorine-based methods.
Longking EnTech’s NLQ-H and NLQ-HPV series are engineered for open-channel disinfection in municipal and reuse applications, ensuring microbiological safety and regulatory compliance with minimal maintenance.
Key Advantages of Longking UV Systems
Chemical-Free Disinfection: Eliminates pathogens without chlorine, protecting both operators and ecosystems.
High-Intensity Lamps: Up to 800 W per lamp for reliable inactivation even under low UV transmittance.
Energy-Efficient Hydraulics: Optimized flow dynamics ensure maximum exposure with minimal head loss.
Automated Wiper System: Pneumatically driven cleaning rings maintain quartz sleeve transparency.
Smart Dose Control: Real-time UV dose regulation based on water flow and UVT.
Modular Design: Scalable configuration adaptable to flows from 1,000 m³/h to over 500,000 m³/h.
Applications
Final disinfection in wastewater treatment plants (WWTPs)
Reuse water for irrigation and industrial purposes
Combined O₃ + UV AOP systems for oxidation and sterilization
Surface water and stormwater treatment
Regulatory Compliance
Our UV systems are validated and designed according to:
EU Urban Wastewater Treatment Directive (91/271/EEC)
EU Bathing Water Directive (2006/7/EC)
CE and ISO 9001 quality and electrical safety standards
By combining ozone oxidation and UV disinfection, municipalities achieve complete water safety — from advanced oxidation to final pathogen removal — with zero harmful residues and full environmental compliance.
Engineering, Automation & Remote Monitoring
Each municipal installation is designed for high automation, reliability, and adaptability to plant requirements.
Longking provides full process simulation, equipment design, PLC programming, and on-site commissioning to ensure seamless system integration.
Engineering and Control Features
CFD-based hydraulic and aeration modeling
Modular skids for compact plant integration
PLC + HMI architecture for local and remote operation
SCADA integration for full plant connectivity
SENTINEL Remote Monitoring System: Real-time analytics, predictive maintenance, and performance optimization
Multilingual user interfaces for global operation
Safety and Reliability
Ozone leak detection and automatic shutdown protocols
Pressure and temperature interlocks
Secure control panels with redundancy and environmental protection
Sustainability and Compliance
Our technologies support municipalities in achieving:
EU Water Framework Directive compliance
SDG 6 – Clean Water and Sanitation
Circular economy goals through safe water reuse
By reducing chemical use, minimizing energy demand, and enabling environmentally neutral disinfection, Longking EnTech contributes to a more sustainable water future.
Partnering with Municipalities for a Cleaner Future
At Longking EnTech Europe, we work closely with public utilities, EPC contractors, and plant operators to modernize water infrastructure through advanced ozone and UV technologies.
Whether upgrading an existing facility or building a new turnkey system, our engineering team delivers:
Full process design and optimization
Pilot testing and CFD validation
Equipment manufacturing and automation
Commissioning, training, and after-sales service
