Ozone has become one of the most powerful and sustainable water treatment technologies in municipal, industrial, and drinking-water applications. As water safety requirements tighten globally, ozone’s role has shifted from an optional enhancement to a core component in modern purification systems. This article explains why ozone is essential in water treatment, how it improves water quality, and why accurate ozone measurement using advanced tools—such as the ERUN-SP7 portable multi-parameter water quality detector—is critical for consistent and compliant water operations.
Ozone (O₃) is an unstable molecule composed of three oxygen atoms. Its strong oxidizing ability allows it to break down organic pollutants, kill microorganisms, remove odors, and improve the clarity of water.
When dissolved in water, ozone reacts instantly with bacteria, viruses, and contaminants—making it one of the fastest and most efficient water disinfectants available.
Stronger oxidation power—up to 50 times more effective than chlorine.
Rapid action—disinfection speed is significantly faster.
No harmful chlorinated by-products.
Improves taste, color, and odor.
Ozone destroys harmful microorganisms such as:
E. coli
Giardia
Viruses
Algae
Biofilm
It achieves near-instantaneous results, making it ideal for drinking water treatment plants, swimming pools, and bottled water production.
Ozone oxidizes:
Organic matter
Heavy metals (iron, manganese)
Pesticides
Industrial chemicals
This makes it a preferred technology for industrial wastewater treatment and advanced oxidation processes.
Unlike chlorine, ozone decomposes back into oxygen, leaving no residual taste or carcinogenic compounds. This makes it safer and more environmentally friendly.
Ozone enhances:
Color clarity
Taste
Odor
It is widely used in food and beverage production, where water quality standards are extremely strict.
Although ozone is powerful, overdosing or underdosing can lead to:
Unstable water quality
Equipment corrosion
Incomplete disinfection
Regulatory violations
Therefore, precise monitoring is essential to ensure:
Ozone is applied at the correct concentration
Water meets international safety standards
Process optimization and cost savings
This is where advanced water analyzers play a crucial role.
The ERUN-SP7 portable multi-parameter water quality detector is designed to meet the demanding needs of water treatment professionals.
Detects more than 60 water quality parameters
Including COD, ammonia nitrogen, total phosphorus, nitrite, turbidity, residual chlorine, color, heavy metals (iron, zinc, copper, chromium), and more.
Automatic wavelength selection
No manual adjustment required—reduces operational errors.
Optical + electrode measurement methods
Ensures fast, stable, and accurate readings.
Record and Data Storage
Stores 100 curves and 1,999 data entries—each with time and parameter labels.
Built-in printer & USB interface
Facilitates instant reporting and data transfer.
Portable and field-ready design
Ideal for environmental monitoring, wastewater treatment plants, laboratories, universities, and drinking water applications.
A municipal water treatment facility introduced ozone as a primary disinfectant but faced challenges in monitoring ozone-related parameters such as turbidity, residual chlorine (post-treatment), and organic removal efficiency.
After implementing ERUN-SP7:
Technicians could test multiple indicators on-site.
Ozone dosing became more accurate and consistent.
The plant achieved compliance with national drinking water standards.
Report time decreased by 40%.
This case demonstrates the importance of reliable multi-parameter testing when optimizing ozone-based treatment.
Ozone plays a crucial role in modern water treatment due to its powerful disinfection capability, environmentally friendly nature, and ability to remove a wide range of pollutants. However, effective ozone application depends on accurate monitoring—making instruments like the ERUN-SP7 portable multi-parameter water quality detector indispensable for professionals.
With advanced optical measurement, multi-parameter customization, strong storage capability, and excellent portability, ERUN-SP7 is a highly reliable tool for ensuring safe, clean, and high-quality water in any application
