Introduction
The environmental protection industry has developed rapidly in recent years. Ozone equipment features strong oxidizing power, residue-free disinfection and outstanding treatment effects, and is widely adopted in industrial wastewater treatment, flue gas denitrification, river remediation, drinking water sterilization, food and pharmaceutical disinfection and other fields.
In a complete ozone system, gas source quality directly determines ozone concentration, production stability and the service life of ozone generators. Therefore, an increasing number of ozone manufacturers and end users have abandoned air intake and opted for dedicated industrial PSA oxygen generators.
Jiangsu Minnuo specializes in the R&D, production and sales of PSA pressure swing adsorption oxygen generators. With years of experience supporting ozone equipment gas supply, we customize oxygen generation equipment for all specifications of ozone generators, solving industry pain points such as low ozone concentration, high energy consumption and easy electrode damage to help customers cut costs and boost efficiency.
I. Why Ozone Generators Must Be Equipped with Dedicated Oxygen Generators
Obvious Drawbacks of Direct Air Intake
Most small ozone generators use ambient air as raw gas by default. Air only contains 21% oxygen, with nitrogen, water vapor and impurities accounting for the rest. Producing ozone from air leads to multiple defects:
- Low ozone concentration and poor conversion efficiency
- Nitrogen generates nitrogen oxides under high-voltage discharge, creating acidic by-products that corrode ozone tubes and electrodes
- High power consumption leading to long-term high electricity costs, frequent failures and heavy maintenance workload
High-Purity Oxygen Feed Becomes Industry Standard
Compared with air feed, high-purity oxygen drastically improves ozone conversion efficiency. When oxygen purity is stably maintained at 90%–93%, ozone output concentration rises 3–5 times, and nitrogen oxide generation is completely eliminated to avoid equipment corrosion.
All medium and large ozone systems for water treatment and flue gas denitrification now adopt the standard matching combination: PSA oxygen generator + ozone generator.
II. Comparison of Three Oxygen Supply Modes: On-Site PSA Oxygen Offers the Best Cost Performance
Three mainstream oxygen supply methods are available for ozone projects. Judging by comprehensive cost, safety and gas stability, on-site PSA oxygen generation is the optimal choice for industrial projects.
- Bottled oxygen supply: High purity, but discontinuous gas delivery. Frequent cylinder replacement raises labor costs. High-pressure cylinders carry safety hazards, and total expenditure rises sharply with large gas consumption. Only suitable for small lab test equipment.
- Liquid oxygen storage tank supply: Supports 24-hour continuous supply with excellent purity. However, storage tanks require high upfront investment, liquid oxygen volatilizes during storage, refilling is difficult in remote areas, and later operation costs remain high, only fit for super-large projects.
- On-site PSA oxygen generator (Minnuo recommended): Produces oxygen once powered, no cylinders or liquid refilling required. Stable purity of 93%±3% compatible with all ozone generator models. Fully automatic unattended 24-hour operation with low initial investment and fast payback period, applicable to most environmental industrial projects.
III. Core Advantages of Minnuo Special Oxygen Generators for Ozone Equipment
Minnuo optimizes equipment programs and internal structures according to the gas demand characteristics of the ozone industry, perfectly matching all dry and water-cooled ozone generators and solving typical industry pain points.
3.1 Stable High-Purity Oxygen Supply
Adopts high-quality lithium molecular sieves with superior water and impurity resistance. Rated purity is reached within 15 minutes after startup, with steady oxygen purity of 90%–93% and constant pressure & flow. Ozone concentration remains stable to meet diverse working conditions including wastewater decolorization, COD degradation, flue gas denitrification and water disinfection.
3.2 Dramatically Reduced Operating Costs
Compared with bottled and liquid oxygen, Minnuo PSA oxygen generators cut total gas expenditure by 30%–50%. Clean high-purity oxygen reduces carbon deposition and acid corrosion inside ozone units, extending the service life of electrodes and discharge tubes by more than twice and lowering equipment repair & replacement expenses.
3.3 Zero Secondary Pollution
The oxygen source contains extremely low impurities, fundamentally inhibiting nitrogen oxide and acidic substance generation. The whole system operates without secondary pollutants, fully meeting environmental project acceptance standards for municipal sewage, pharmaceutical and food industries with strict emission requirements.
3.4 Intelligent & User-Friendly for Industrial Sites
Equipped with full-automatic PLC control with one-key start-stop, plus alarms for abnormal pressure, high/low voltage and automatic shutdown protection upon faults. Modular compact design occupies minimal space with simple installation; zero professional operator training required.
3.5 Full Range of Flow Sizes & Customization Support
Our oxygen generator flow range covers 1–300 m³/h. Precise matching available for small 50g/h disinfection ozone machines up to large 10kg/h denitrification ozone equipment, with non-standard customized units for special working conditions.
IV. Main Industrial Application Scenarios
4.1 Industrial Wastewater Treatment
Matched with ozone machines for deodorization, decolorization, COD/BOD degradation and heavy metal removal in printing & dyeing, chemical, paper and electroplating industries, improving wastewater treatment depth to meet discharge standards.
4.2 Flue Gas Desulfurization & Denitrification
Ozone oxidation denitrification is a mainstream ultra-low emission process. High-purity oxygen improves ozone oxidation efficiency and decomposes flue gas nitrogen oxides effectively, widely used in power plants, brick kilns, steel mills and waste incineration plants.
4.3 Drinking Water & Secondary Water Supply Disinfection
Replaces traditional chlorine disinfection without harmful by-products. Applied to waterworks, residential secondary water supply and bottled water production lines for safe sterilization.
4.4 Food & Pharmaceutical Industry Sterilization
Used for air disinfection in production workshops, pipeline CIP sterilization and raw material preservation. Green and residue-free, fully compliant with food and pharmaceutical safety production regulations.
4.5 Aquaculture & River Water Restoration
Purifies black and odorous river water and eliminates algae and bacteria. In aquaculture, it sterilizes water and degrades ammonia nitrogen to reduce aquatic disease rates and raise breeding profits.
V. About Jiangsu Minnuo Machinery Co., Ltd.
Jiangsu Minnuo is a one-stop manufacturer integrating R&D, production, sales and after-sales service of industrial PSA oxygen generators. With mature pressure swing adsorption technology, we focus on supporting environmental protection industries including ozone equipment, wastewater treatment, mining, aquaculture and combustion supporting.
We provide free working condition evaluation, scheme quotation and on-site technical guidance. We select matched oxygen generation equipment according to ozone generator output, working pressure and project environment to help manufacturers and end clients improve product quality and lower overall costs.
Ozone equipment manufacturers and project owners are welcome to contact us for consultation, factory visits and cooperation negotiations.
VI. FAQ
Q1: Why can’t ordinary air directly feed ozone generators?
A1: Air contains a large amount of nitrogen, which produces corrosive nitrogen oxides under high voltage discharge, damaging ozone electrodes and tubes, and resulting in low ozone concentration and high energy consumption.
Q2: What oxygen purity is required to support normal ozone generator operation?
A1: 90%–93% high-purity oxygen is the optimal matching standard, which can increase ozone output by 3–5 times and avoid corrosion damage to ozone equipment.
Q3: Which oxygen supply mode has the lowest long-term cost for ozone wastewater projects?
A3: On-site PSA oxygen generator has the lowest comprehensive operating cost, saving 30%–50% gas expenditure compared with bottled and liquid oxygen supply.
Q4: Can Minnuo oxygen generators match large denitrification ozone equipment above 10kg/h?
A4: Yes. Our product flow range covers 1–300 m³/h, supporting standard and non-customized models for all large industrial ozone denitrification units.
Q5: Is the PSA oxygen system safe for long-term continuous environmental project operation?
A5: Safe and stable. The unit adopts low-pressure PSA working mode with multi-protection alarm systems, supporting 24-hour unattended continuous operation without high-pressure explosion risks of oxygen cylinders.
sales2:+86 17506119168
