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Catalytic Ozonation Project Cases

Advanced oxidation projects for difficult-to-degrade COD, color removal and industrial wastewater polishing.

REAL PROJECT REFERENCES

Ozone catalytic oxidation applied in real wastewater projects.

Four representative projects are presented below as complete engineering introductions rather than simple case cards. Each project combines its treatment scale, water-quality targets, process route and site photographs so visitors can understand the actual application at a glance.

GANSU · OZONE CATALYTIC OXIDATION

Gansu Industrial Wastewater Ozone Catalytic Oxidation Project

15,000 m³/d (Phase I + II)

Project Overview

A two-phase industrial wastewater project using ozone oxidation as an advanced treatment process. Phase I is designed for 5,000 m³/d and Phase II for 10,000 m³/d, with total project investment of RMB 100 million.

CLIENTIndustrial Wastewater Treatment Project

LOCATIONGansu, China

PROJECT TYPEIndustrial Wastewater · Advanced Treatment

PROCESS ROUTE

Pre-oxidation → Catalytic Ozone Oxidation → High-efficiency Ozone Dissolution → Secondary Mixing

Wastewater Characteristics

Design influent COD ≤80 mg/L
Target effluent COD ≤50 mg/L
Deep COD degradation and color removal requirements

Project Goals

Reduce COD to ≤50 mg/L
Remove color through ozone oxidation
Support independent operation of two treatment trains

Project Value

One ozone oxidation tank divided into two independently operable trains
Each train is divided into four treatment stages
Pre-oxidation and catalytic ozone oxidation are integrated for deep treatment

Gansu Industrial Wastewater Ozone Catalytic Oxidation Project site photo 1

Gansu Industrial Wastewater Ozone Catalytic Oxidation Project site photo 2

Gansu Industrial Wastewater Ozone Catalytic Oxidation Project site photo 3

XUZHOU · OZONE CATALYTIC OXIDATION

Xuzhou Industrial Park Ozone Catalytic Oxidation Project

10,000 m³/d ozone section

Project Overview

A newly built industrial wastewater treatment plant occupying approximately 54.7 mu. The total planned treatment scale is 20,000 m³/d in two phases, with an ozone catalytic oxidation section designed for 10,000 m³/d.

CLIENTIndustrial Park Wastewater Treatment Plant

LOCATIONXuzhou, Jiangsu, China

PROJECT TYPEIndustrial Park WWTP · Advanced Oxidation

PROCESS ROUTE

High-efficiency Catalytic Ozone Dosing → Secondary Mixing → ·OH Advanced Oxidation

Wastewater Characteristics

Industrial wastewater with difficult-to-degrade COD
Deep-treatment requirement for refractory organic pollutants

Project Goals

Use catalytic ozone oxidation to remove difficult-to-degrade COD
Provide a 10,000 m³/d advanced-oxidation treatment stage

Project Value

Supports a total planned industrial wastewater treatment scale of 20,000 m³/d
Hydroxyl-radical oxidation strengthens deep removal of refractory organic pollutants

Xuzhou Industrial Park Ozone Catalytic Oxidation Project site photo 1

Xuzhou Industrial Park Ozone Catalytic Oxidation Project site photo 2

Xuzhou Industrial Park Ozone Catalytic Oxidation Project site photo 3

HEJIANG · OZONE CATALYTIC OXIDATION

Hejiang Industrial Park Ozone Catalytic Oxidation Retrofit Project

10,000 m³/d

Project Overview

A technical retrofit of an industrial-park wastewater treatment plant together with new reclaimed-water reuse facilities. After the retrofit, the total treatment scale is 10,000 m³/d, with total investment of RMB 30 million.

CLIENTIndustrial Park Wastewater Treatment Plant

LOCATIONLuzhou, Sichuan, China

PROJECT TYPEWWTP Retrofit · Reclaimed Water Reuse

PROCESS ROUTE

High-efficiency Ozone Dissolution → Secondary Mixing → Catalytic Ozone Oxidation

Wastewater Characteristics

Influent SS ≤10 mg/L
Influent COD ≤80 mg/L
pH 6–9
Difficult-to-degrade COD, small-molecule organic acids and aldehydes

Project Goals

Effluent SS ≤10 mg/L
Effluent COD ≤50 mg/L
Maintain pH 6–9
Support stable compliant treatment and reclaimed-water reuse

Project Value

Wastewater-treatment-plant retrofit combined with reclaimed-water reuse facilities
Catalytic ozone oxidation strengthens removal of difficult organic pollutants

Hejiang Industrial Park Ozone Catalytic Oxidation Retrofit Project site photo 1

Hejiang Industrial Park Ozone Catalytic Oxidation Retrofit Project site photo 2

Hejiang Industrial Park Ozone Catalytic Oxidation Retrofit Project site photo 3

HEBEI LONGYAO · OZONE CATALYTIC OXIDATION

Hebei Longyao Food Industrial Park Ozone Catalytic Oxidation Project

20,000 m³/d

Project Overview

A key municipal wastewater project serving a food industrial park in Xingtai. The project occupies approximately 39 mu, has a treatment scale of 20,000 m³/d and total investment of RMB 78.4761 million.

CLIENTFood Industrial Park Wastewater Project

LOCATIONLongyao County, Xingtai, Hebei, China

PROJECT TYPEFood Industrial Park · Municipal Wastewater

PROCESS ROUTE

Dedicated Dosing Pump → High-efficiency Catalytic Ozone Dosing → Secondary Mixing → ·OH Advanced Oxidation

Wastewater Characteristics

Design influent COD ≤50 mg/L
Target effluent COD ≤30 mg/L
Removal of difficult-to-degrade COD

Project Goals

Reduce COD to ≤30 mg/L
Improve regional wastewater-treatment capacity
Support improvement of the local water environment

Supply Scope

Dedicated catalytic-oxidation dosing pump
High-efficiency catalytic dosing device
Secondary mixing dosing device

Project Value

Key municipal wastewater project serving a food industrial park
20,000 m³/d treatment capacity
Catalytic ozone oxidation targets refractory COD

Hebei Longyao Food Industrial Park Ozone Catalytic Oxidation Project site photo 1

Hebei Longyao Food Industrial Park Ozone Catalytic Oxidation Project site photo 2

Hebei Longyao Food Industrial Park Ozone Catalytic Oxidation Project site photo 3

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