Longking supplies the ozone system for Madin Drinking Water Plant in Mexico
Madín II Drinking Water Plant (Mexico): Dry-Air Ozone Generator System with 2 × 7.5 kg/h NLO Ozone Generators, UV Control Loop and High-Efficiency Diffusers
Longking EnTech Europe (formerly Newland EnTech Europe) was awarded the supply of an ozonation package for the Madín II Drinking Water Treatment Plant project in Mexico. The project “Diseño, Construcción y Estabilización del Proyecto Planta Potabilizadora Madín II, Plantas de Bombeo y Líneas de Conducción” aims to expand treatment capacity to supply the Metropolitan Area of the Valley of Mexico (ZMVM).
This reference strengthens our track record of ozone generator systems for drinking water in Mexico—designed around stable operation, process control and safe integration into utility environments.
At a glance
Application: municipal drinking water ozonation (Mexico)
Project area: ZMVM (Valley of Mexico)
Ozone generation concept: dry-air ozone generation
Ozone generators: NLO Series
Installed ozone capacity: 2 × 7.5 kg/h (total 15 kg/h)
Feed gas package: two complete air compression and air treatment trains
Control: UV spectrophotometer-based regulation loop (stable output + energy optimization)
Thermal management: two closed-circuit cooling systems
Ozone transfer: dome-type porous diffusers to the contact chambers
Safety: modern protection systems for operator safety (site configuration dependent)
Project objective — expanding drinking water capacity for ZMVM
The Madín II project expands treatment capacity to deliver a larger volume of drinking water for the ZMVM region. In large municipal projects, success is defined by more than nameplate output: operability, reliability and safety-by-design must hold under real plant conditions and variable demand.
Dry-air ozone generator system (NLO Series) — 15 kg/h installed capacity
The supplied solution is a dry-air ozone generator system consisting of two high-efficiency NLO Series ozone generators, each rated at 7.5 kg/h.
For drinking water utilities, the term “ozone generator system” matters: stable performance depends on the full architecture—feed gas quality, electrical conversion stability, cooling, control discipline and safe ozone transfer into contact chambers.
Feed gas preparation — dual compression and air treatment trains
The plant includes two complete air compression and air treatment systems designed to meet stringent feed-gas quality requirements for ozone generation. The resulting dry, filtered air stream feeds the ozone production units, where oxygen in the dry air feed gas is converted into ozone by high-voltage, high-frequency silent electrical discharge.
This configuration supports consistent ozone production and reduces operational variability driven by gas quality.
Control and efficiency — UV spectrophotometer regulation loop
Each ozone generator incorporates a UV spectrophotometer, enabling a regulation loop to stabilize ozone concentration and support energy consumption optimization. In practice, this improves controllability and helps minimize operating cost while meeting the process demand required by the treatment line.
Thermal management — closed-circuit cooling for long-term durability
Heat dissipation is managed through two closed-circuit cooling systems designed to preserve equipment materials and maintain stable operation under continuous-duty conditions. Thermal stability is a key contributor to reliable ozone output over time.
Ozone transfer to water — contact chambers and high-efficiency diffusers
The generated ozone is routed to the contact chambers and transferred to water using high-efficiency dome-type porous diffusers. Delivered performance in ozonation is driven by transfer and contacting effectiveness (site-specific), not only by generator nameplate capacity—so stable control and well-matched contacting hardware are essential.
Safety-by-design for utility operation
The installation is equipped with modern safety systems designed to protect operators and support controlled ozonation operation, including interlocks and protective logic aligned with utility practices (site configuration dependent).
NLO ozone generator systems — engineered for municipal drinking water projects
Madín II is a practical example of why utilities specify ozone generator systems, not only “ozone generators”. Longking EnTech Europe’s NLO ozone generators are designed as a modular platform for municipal and industrial applications where operators require stable output, clear automation and safe integration.
When specifying an ozonation system for drinking water, project teams typically evaluate:
feed gas concept (dry air, LOX or PSA — project dependent) and gas quality control,
stable turndown and repeatable ozone production,
thermal management and long-term durability,
contacting equipment matched to the contact chambers,
instrumentation and control logic (including alarm philosophy),
safety systems (leak detection, ventilation, interlocks),
PLC/SCADA integration and lifecycle support.
If you are planning a drinking water ozonation upgrade in Mexico, our team can support feasibility, integration, commissioning and long-term service planning.
For more information about this reference project or NLO ozone generator systems in Mexico and internationally, contact our team: