Types of UV Systems for Wastewater Disinfection: Which One to Choose?

Selecting the right UV disinfection system is crucial for ensuring effective treatment of wastewater. The correct setup not only improves reliability but also directly impacts the level of microbial control. In this article, we review the most common types of UV systems and help you understand which solution is right for your facility.

UV Solutions Offered by UVL

UVL provides two primary categories of ultraviolet disinfection equipment for treating wastewater:

  • Multi-lamp flow-through UV sterilizers
  • Submersible UV modules

These two technologies differ in both design and application scope, making each suitable for specific use cases.

Flow-Through Multi-Lamp Sterilizers

These are enclosed stainless steel chambers designed for continuous flow and high-volume treatment. They connect to the pipeline via standard water inlets and outlets and are widely used in:

  • Municipal treatment plants
  • Industrial wastewater systems
  • Urban waterworks

Advantages:

  1. High throughput — up to 1000 m³/h
  2. Seamless integration into existing treatment lines without major redesign
  3. Operates in pressurized and non-pressurized systems, up to 6 bar

These systems are ideal for facilities requiring consistent and powerful disinfection under demanding conditions.

Submersible UV Modules

These open-style sterilizers consist of a bactericidal lamp housed in a quartz sleeve, connected via a sealed cable to an external electronic power supply. Submersible UV systems are highly flexible and suited for:

  • Local treatment stations
  • Decentralized or modular setups
  • Small to medium wastewater facilities

Key Features:

  1. Can be installed as cassette-style arrays in channels or tanks to increase capacity
  2. Designed for direct immersion into reservoirs or holding tanks
  3. Best suited for non-pressurized systems

This modular approach allows engineers to build custom UV configurations based on spatial and hydraulic constraints.

Which System Is Right for You?

Both types of equipment offer high disinfection efficiency, but selecting the right model depends on:

  • Daily water volume (maximum flow rate)
  • System pressure
  • Available installation space
  • Infrastructure type and operational constraints

Flow-through systems are plug-and-play and easy to size based on lamp wattage. Submersible systems, while more adaptable, may require engineering input for optimal configuration.

Why UVL?

UVL provides more than just equipment — we deliver comprehensive disinfection solutions tailored to real-world wastewater treatment challenges.

What sets us apart:

  • Full-service project design tailored to your system
  • Expert guidance from selection to commissioning
  • Warranty coverage across all product lines
  • Compatibility with foreign UV systems, enabling easy substitution

Our in-house UV lamps are fully compatible with leading international brands, ensuring smooth integration and fast delivery without relying on external suppliers.

Whether you're managing a municipal wastewater facility or designing a compact treatment plant, UVL will help you build a UV system that works — reliably, efficiently, and sustainably.

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