Heterogeneous Ozone Catalysis: A New Solution for Efficient Degradation of Refractory Wastewater

SINOKLE Technology's heterogeneous ozone catalysts (such as the KHC series, typical model KHC-PC1001) are advanced catalysts designed specifically for advanced oxidation processes (AOPs). Combined with ozone oxidation technology, they are used to efficiently treat refractory organic wastewater.

SINOKLE series heterogeneous ozone catalysts

Features

1. High catalytic activity and selectivity:

- Using advanced preparation technology and optimized catalytic components, the catalyst has an extra-large specific surface area (through a three-level pore system: macropores >50 nm, mesopores 2-50 nm, micropores <2 nm), providing more active sites and significantly improving ozone decomposition efficiency and pollutant degradation rate.

- The catalyzed ozone generates hydroxyl radicals (.OH, redox potential 2.8 V), achieving efficient mineralization of refractory organics (such as phenols, cyanide and antibiotics), with a COD removal rate of over 80%.

2. Wide pH adaptability:

- It maintains stable catalytic activity in the pH 3-10 range, overcoming the acid dependence of traditional homogeneous catalysts (such as Fe2+/H2O2) and adapting to complex water quality (such as pH fluctuations in industrial wastewater).

3. No metal leaching:

- The heterogeneous design avoids metal ion leaching, complies with strict discharge standards (such as the GB 8978-1996 heavy metal discharge standard), and carries no secondary pollution risk.

4. High stability and long life:

- The catalyst has excellent thermal and chemical stability, a service life usually exceeding 5 years, and resistance to high temperature and corrosion, suitable for long-term operation.

- Surface modification technology enhances the anti-poisoning capability and reduces catalyst deactivation.

5. Efficient mass transfer design:

- The three-level pore system (macropores promote mass transfer, mesopores increase active site exposure, micropores increase specific surface area) optimizes the diffusion of reactants and products, improving mass transfer efficiency by more than 30% over traditional catalysts.

6. Low energy consumption and operating cost:

- Through optimized reactor design and ozone dosing control, the power consumption per ton of water is reduced (<3.5 kWh), cutting overall operating costs by 20-30%.

7. Intelligent integration:

- Combined with SINOKLE's CDOF (integrated ozone flotation) technology, with fluid dynamics simulation and real-time monitoring systems that automatically adjust the ozone dosage to ensure efficient mixing and treatment stability.

Application fields

SINOKLE's heterogeneous ozone catalysts are widely used in the following fields, especially suitable for treating high-concentration, refractory organic wastewater:

1. Petrochemical:

- Treats refinery wastewater, electric desalting blowdown water, phenol-containing wastewater, etc., removing COD, phenols, cyanide and other pollutants.

- Case: a petrochemical project using the KHC-PC1001 catalyst reduced COD from 1,000 mg/L to below 50 mg/L, improved treatment efficiency by 30% and cut operating costs by 20%.

2. Pharmaceutical and fine chemical industries:

- For wastewater containing highly toxic, refractory organics such as antibiotics and hormones, it achieves deep oxidation and mineralization, meeting the Grade 1B standard of GB 18918-2002.

- Application scenario: pharmaceutical plant wastewater treatment, degrading antibiotic residues to ensure non-toxic effluent.

3. Printing, dyeing and textile:

- Treats dye wastewater, removing color, odor and organic pollutants, improving the biodegradability of the wastewater and creating conditions for subsequent biological treatment.

4. Municipal wastewater treatment:

- Used for advanced treatment of domestic sewage, removing trace organic pollutants and killing bacteria, improving effluent quality — suitable for plant tail-water upgrading.

- Case: combined with the CDOFCDOF for the treatment of black and odorous water bodies, the effluent meets the Class IV surface water standard.

5. Other industrial wastewater:

- Suitable for high-COD, high-toxicity wastewater treatment in papermaking, leather, electroplating and other industries, reducing the toxicity of intermediate products and ensuring environmental compliance.

Comparison with other technologies

- Compared with homogeneous catalysts: heterogeneous catalysts have no metal leaching, can be reused, have wider pH adaptability and lower operating costs.

- Compared with traditional ozone oxidation: through precise regulation of active sites and multi-level pore design, SINOKLE's ozone catalyst overcomes the bottlenecks of low ozone mass transfer efficiency (below 60% traditionally), incomplete mineralization and high energy consumption, raising mass transfer efficiency to over 80% and improving COD removal by 20-30%.

Summary

SINOKLE's heterogeneous ozone catalysts, with high activity, wide pH adaptability, no secondary pollution, long life and low cost as core features, combined with the CDOFCDOF technology, demonstrate excellent performance in petrochemical, pharmaceutical, dyeing and municipal wastewater treatment. Their innovative design significantly improves ozone oxidation efficiency, provides an efficient, green solution for refractory organic wastewater treatment, and helps enterprises achieve a win-win of environmental compliance and economic benefits.