Longking EnTech Europe launches NLQ 800 HPV open-channel UV disinfection system for municipal wastewater
Longking EnTech Europe launches NLQ 800 HPV open-channel UV disinfection system for municipal wastewater
Longking EnTech Europe, headquartered in Madrid, has expanded its UV portfolio with the launch of the NLQ 800 HPV, a new high-power vertical open-channel UV disinfection system specifically designed for municipal wastewater treatment plants.
The NLQ 800 HPV uses 800 W low-pressure amalgam lamps that deliver high germicidal output with fewer lamps per channel. This high-power configuration reduces the number of modules, simplifies spare parts management and lowers maintenance workload – key advantages for utilities operating under increasingly strict discharge and water-reuse regulations.
Vertical UV modules for open-channel municipal plants
he NLQ 800 HPV is built around vertical UV modules installed directly in the open channel. This vertical design promotes uniform hydraulic distribution across the lamp array, maximises contact between the effluent and the UV radiation and keeps headloss very low.
The open-channel configuration also allows the vertical modules to be easily accessed from the top of the channel, simplifying inspection, cleaning operations and lamp replacement. This is especially relevant in municipal plants where maintenance windows are short and operators need to minimise downtime of the disinfection step.
NLQ HPV range and modular UV design
The NLQ HPV range has been designed as a modular platform to cover a wide variety of municipal wastewater treatment plant sizes and effluent qualities. By combining vertical UV modules in parallel and adapting the number of lamps per channel, the system can be configured to treat different flow rates and to deliver the UV dose required for both discharge and water reuse scenarios.
This modular approach provides engineering flexibility for new projects and simplifies future expansions. Utilities can start with an initial configuration sized for current regulatory limits and flows, and later add modules or lamp arrays as discharge requirements become more stringent or as the plant incorporates water reuse or seasonal peak flows into its design envelope.
Chemical-free automatic cleaning and reliable UV dose
A distinctive feature of the NLQ 800 HPV is its chemical-free automatic cleaning system, which maintains the transmittance of the quartz sleeves and ensures a stable UV dose without adding reagents to the treated effluent. The system incorporates high-transmittance quartz sleeves, integrated UV intensity sensors and an advanced PLC-based control platform to guarantee reliable and verifiable UV disinfection performance in municipal wastewater applications.
By avoiding chemical cleaning agents, the NLQ 800 HPV reduces the number of chemicals stored on site, eliminates residues associated with cleaning cycles and simplifies environmental compliance, while keeping the UV disinfection step fully compatible with downstream reuse or polishing processes.
Intelligent power control, energy savings and lower lifecycle OPEX
The intelligent control system adjusts lamp output based on flow, UV transmittance (UVT) and real-time sensor feedback. This dynamic power regulation allows utilities to optimise energy consumption while maintaining the required UV dose for both discharge and reuse scenarios.
Extended lamp life, simplified module extraction and a reduced number of maintenance points contribute to lower lifecycle OPEX and higher overall system reliability. By eliminating chlorine and its by-products, the NLQ 800 HPV offers a safer, more sustainable and more predictable UV disinfection process for municipal wastewater treatment plants. In many cases, the combination of energy savings and reduced chemical handling can also support broader decarbonisation and safety objectives at plant level.
Designed for both new builds and retrofit of existing chlorine channels
The system is suitable both for new installations and for the retrofit of existing chlorine contact channels. Its compact modular design allows the vertical UV modules to be integrated into existing civil structures with minimal modification, which helps reduce installation cost and makes the transition from chlorine to UV disinfection technically and economically attractive for municipal operators.
By reusing existing channels, utilities can modernise their disinfection step with UV technology while limiting civil works, shortening project schedules and reducing the overall CAPEX of the upgrade.
Designed for future regulations and integration into municipal assets
The NLQ 800 HPV has been developed with upcoming European and international trends in wastewater discharge and reuse in mind, where higher levels of disinfection and tighter control of by-products are expected. Its flexible configuration and precise UV dose control make it a suitable platform to support future regulatory changes without requiring a complete redesign of the disinfection step.
The system can be integrated into existing SCADA and plant control architectures and is compatible with standard instrumentation and monitoring strategies used in municipal wastewater treatment plants. This facilitates commissioning, training of operators and day-to-day process control, reducing the learning curve for plant staff.
With the launch of the NLQ 800 HPV and the broader NLQ HPV range, Longking Entech Europe strengthens its portfolio of advanced open-channel UV disinfection systems and ozone technologies, supporting municipal utilities in their transition towards chemical-free, low-emission and high-efficiency wastewater treatment.
For more information, contact our commercial department at info@longkingeu.com .