For safe, reliable water treatment with a guaranteed 0.8% solution of sodium hypochlorite, ClorTec® on-site sodium hypochlorite generators are designed for high efficiency, low lifecycle cost, durability and reliability. The latest generation of ClorTec systems, the Gen III, features optimized process and features that deliver 15% operating cost savings over previous designs.


The on-site generation of chlorine-based chemistries provides a safe, economical and effective solution for the treatment of water. For a variety of applications from drinking water treatment to microbiological control in cooling towers, on site generation lets you generate what you need, when you need it. Ensure the safety of your personnel and the surrounding community, generating a powerful and highly effective oxidant without the transportation of hazardous chemicals. Innovative technologies deliver low levels of chlorate byproduct formation at the highest efficiency available.




ClorTec® on-site hypochlorite generation systems generate chemistry using three common consumables: water, salt and power. On-site generators produce chlorine-based disinfectants when a solution of sodium chloride (salt + water) is passed through an electrolytic cell. This process converts the chloride ions present in the solution to either sodium hypochlorite or mixed oxidant solution, depending on the cell configuration. At the heart of every De Nora electrochlorination system are DSA® electrodes pioneered by De Nora.



ClorTec® Overview

ClorTec systems generate from 25-3,000 lb/day of sodium hypochlorite and feature market-driven innovations, designed to further increase operational efficiency, system control and precision, while reducing system footprint.

ClorTec offers a range of advantages including those below:

High efficiency

The new ClorTec Gen III design features an optimized electrochlorination process to deliver 15% operating cost savings over previous models

Low Disinfection By-products

Innovative patent-pending technology in the new ClorTec Gen III design delivers even lower levels of chlorate by-product formation to below US guidelines and international proposed regulatory limits

Streamlined configuration and reduced footprint

The unique proprietary backboard design of the larger systems can be removed and located anywhere, while mounting of duty and standby systems on the same frame reduces footprint by up to 50%.

Modular design

ClorTec 25-100 systems can increase capacity by up to 4 times in the same footprint

Control precision and efficiency

Unique split flow design reduces hypochlorite production byproducts and improves efficiency, reducing operating costs. Water and brine precise flow control ensures consistent hypochlorite production

Simple Operation and Maintenance

The new design allows 100% access to all components, new control system for acid washing assist and a simple process flow arrangement

Remote Monitoring

Remote monitoring (and control) ensures optimal operation and reduced on-site time

System Maintenance

Optional self-cleaning on certain models virtually eliminates acid washing. Other systems offer acid wash assist feature to optimise maintenance schedules

ClorTec On-site Sodium Hypochlorite Generators

De Nora Water Technologies

De Nora Electrochlorination in Water Treatment Applications (Video)

Electrochlorination Video Case Study: Laguna Beach