SINOKLE Precious-Metal Ozone Catalyst KLE-HEC-200-A40: Comprehensive Evaluation and Engineering Applications

SINOKLE is a national-level specialized and innovative high-tech environmental protection enterprise, deeply engaged in the field of industrial wastewater advanced oxidation, and holds more than twenty independent patents on ozone catalysis and oil-water separation.KLE-HEC-200-A40 is the company's high-end precious-metal-loaded heterogeneous ozone catalyst. Its precious metal loading is higher than that of KLE-HEC-200-A20, with stronger catalytic activity. Developed for scenarios such as biochemical effluent, reclaimed water reuse, and deep purification of trace refractory pollutants, it is especially suited to deep upgrading of low-concentration persistent toxic organic wastewater with COD < 200 mg.

The product can be integrated withCDFUcyclonic dissolved-air flotation,CDOFand integrated ozone oxidation equipment as a complete package, building an integrated process chain of 'front-end physical impurity removal pretreatment + high-loading precious-metal ozone catalytic deep oxidation', solving industry pain points such as incomplete degradation of low-concentration organic matter by conventional catalysts, low ozone utilization, long-term deactivation by chloride ions, and easily clogged micropores. It is the top-grade catalytic media for reclaimed water reuse and compliant tailwater discharge in the petrochemical, pharmaceutical, landfill leachate, fine chemical and dyeing industries.

Catalytic Mechanism and Core Technical Parameters

(1) Catalytic Mechanism

A porous inorganic carrier is prepared by segmented gradient temperature-controlled sintering plus high-loading atomic-deposition precious-metal composite loading process. The carrier specific surface area is > 250 m2/g, with a high-density loading of transition metals plus platinum-palladium precious-metal composite active sites, paired with a double-layer CeO2 anti-chloride-ion passivation protective layer.

The higher precious-metal loading greatly reduces the activation energy for ozone decomposition. The efficiency of catalyzing hydroxyl radical generation is better than the A20 model, and the oxidation efficiency is 3-5 times higher than that of ordinary silica-alumina-based catalysts. For trace antibiotics, halogenated hydrocarbons, trace humic acid and dye residues, it can completely break stable aromatic rings and long-chain organic matter, directly mineralizing them into CO2 and H2O, while raising the wastewater B/C ratio above 0.35;

The double-layer anti-chlorine protective layer prevents precious-metal active sites from being occupied and deactivated by chloride ions under high-chlorine and high-salinity conditions; the atomically deposited super-hydrophilic surface blocks colloids, oil, and suspended solids, so the micropores do not clog or scale during long-term operation.

(2) Core Performance Indicators

Eight Core Product Advantages

High-loading precious-metal synergistic catalysis, industry-leading trace pollutant removal capability
The precious-metal loading is higher than the A20 model, giving higher removal efficiency for trace residual refractory matter in biochemical effluent; at the same ozone dosage, the COD removal rate is 10%-20% higher than that of conventional precious-metal catalysts, with ozone utilization stably above 99%, greatly reducing ozone unit capacity and long-term electricity consumption, perfectly suited to the stringent reclaimed water reuse standard of COD < 200 mg/L.

Super-large through micropore structure, greatly improved three-phase mass transfer efficiency
A proprietary high-porosity micropore forming process achieves a specific surface area exceeding 250 m2/g, with the number of internal through-flow reaction channels doubled. Ozone, wastewater and catalyst contact more fully, and the hydraulic retention time can be shortened to 18-30 min. For the same treatment scale, the reaction tank volume is smaller, saving civil construction footprint and equipment investment.

Double-layer atomic-deposition hydrophilic modification, long-term anti-fouling, no frequent cleaning
A double-layer super-hydrophilic modified film wraps the particles, making it difficult for suspended solids, emulsified oil and high-molecular colloids to adhere to the inner micropore walls, eliminating media hardening and clogging; under 24 h continuous production in refining, pharmaceutical and other industries, the annual shutdown cleaning frequency is reduced by 80%, greatly reducing operation and maintenance labor and production-stop losses.

Double-layer CeO2 anti-chloride-ion protective layer, suitable for high-chlorine fine chemical wastewater
Compared with the A20 single-layer anti-chlorine structure, the A40 uses a double-layer cerium-based protective layer with stronger chloride-ion complexation inhibition. After 360 days of continuous operation in high-salinity high-chlorine wastewater, catalytic activity decay is only 5%, far below the > 30% decay of ordinary precious-metal catalysts, suitable for pesticide and chlorinated chemical tailwater treatment.

High-temperature gradient sintering, high mechanical strength and extremely low loss
Multi-stage precisely controlled high-temperature sintering produces a dense and uniform particle structure that does not easily pulverize or break under air-water backwashing and high-velocity hydraulic scouring, with an annual wear rate <= 0.3%; minimal annual media replenishment greatly reduces hazardous waste generation and media procurement costs.

Multiple regenerations, optimal total life-cycle cost
The standard service life exceeds 5 years. After activity decay, simple acid washing restores over 95% of catalytic performance, and it can be regenerated cyclically more than 3 times, extending the overall media replacement cycle to 8-10 years. Although the single procurement cost is higher than the A20, the high ozone utilization, low media loss and long regeneration cycle make the medium- and long-term project operation and maintenance total cost lower.

Broad-spectrum pollutant degradation, suitable for multi-industry low-concentration tailwater
It has efficient oxidative mineralization capability for trace antibiotics, halogenated hydrocarbons, polycyclic aromatic hydrocarbons, dyes and humus, and organic slime. It can be used both for deep upgrading of biochemical effluent and for end purification of VOC absorption waste liquid and circulating cooling blowdown water, with one media suiting multiple water qualities.

Deep compatibility with packaged equipment, integrated process with no secondary pollution
Perfectly matches SINOKLECDFUcyclonic flotation,CDOFand ozone oxidation packaged equipment. The front-end physical oil and impurity removal protects the precious-metal active sites; the whole process requires no large addition of flocculation or decolorization agents, reduces chemical sludge production by over 70%, and the carrier operation produces no heavy-metal or precious-metal ion leaching, with no water secondary pollution.

Main Application Industries and Engineering Case Effects

(1) High-standard reclaimed water reuse of landfill leachate biochemical tailwater

Project overview:After two-stage MBR biochemical treatment of landfill leachate, the effluent COD is 120-180 mg/L, with residual trace humus and high color, and it needs to meet the surface-water Class IV reuse standard.

Operating parameters:Ozone dosage 90 mg/L, catalyst dosage 4.5 g/L, hydraulic retention 28 min

Treatment effect:The catalytic unit COD removal rate is 72%, the effluent COD is stably <= 50 mg/L, and the color is reduced to within 3 times; this greatly reduces the organic pollution load on the nanofiltration membrane, extends the membrane cleaning cycle by 2 times, achieves full on-site reuse of leachate with zero external discharge.

(2) Fine chemical high-chlorine pesticide biochemical tailwater upgrading

Project overview:After A/O biochemical treatment of a pesticide enterprise's combined wastewater, the effluent COD is 150-190 mg/L, the water chloride-ion concentration is as high as 8000 mg/L, and chlorinated intermediates remain. Conventional catalysts deactivate rapidly.

Operating parameters:Ozone dosage 110 mg/L, catalyst dosage5.5 g/L, hydraulic retention 32 min

Treatment effect:Chlorinated toxic intermediate removal rate 98%, effluent COD stably < 50 mg/L, B/C raised to 0.38; after one year of continuous operation there is no obvious activity decay, and the effluent stably meets the park's reclaimed water reuse index.

(3) Pharmaceutical API park combined biochemical tailwater treatment

Project overview:Combined biochemical effluent from multiple pharmaceutical enterprises, COD 130-170 mg/L, mixed with various trace bacteriostatic antibiotics, the biochemical system back-end effluent toxicity is high, and it cannot be directly reused for equipment cleaning.

Operating parameters:Ozone dosage 100 mg/L, catalyst dosage 5 g/L, hydraulic retention 30 min

Treatment effect:Trace antibiotics are completely degraded, water biological toxicity is greatly eliminated, effluent COD is stably 40-50 mg/L, and it can be reused long-term for workshop equipment rinsing and floor cleaning, saving over one million yuan in fresh water costs annually.

(4) General application fields

Dyeing / leather biochemical tailwater:Deeply removes trace dyes and tannins, reduces decolorization agents and sludge hazardous waste;

Petrochemical refining tailwater:Decomposes trace gum and dissolved oil, meets circulating cooling water reuse standard;

Power / metallurgy circulating blowdown water:Oxidizes organic slime, reduces bactericide and scale inhibitor dosing;

VOC exhaust gas absorption waste liquid:Thoroughly decomposes dissolved organic volatiles, circulates the waste liquid for reuse without external discharge.

Advantages of the Supporting Complete Process Solution

1. Standard Process for High-Chlorine Wastewater Deep Upgrading

CDFUTwo-stage cyclonic dissolved-air flotation (removing suspended solids, emulsified oil, high-salinity impurities) +CDOFozone catalytic oxidation (filled with KLE-HEC-200-A40). Skid-mounted modular factory prefabrication; on site only piping and electrical control need to be connected for commissioning; renovation of existing sewage stations requires no production stoppage, shortening project implementation and suiting high-chlorine wastewater renovation projects in chemical and pesticide industries.

2. Park Reclaimed Water Reuse Integrated Complete Process

Two-stageCDFUpretreatment + A40 precious-metal ozone catalytic unit + quartz sand deep filtration, equipped with a fully automatic intelligent control system, online real-time monitoring of COD, ozone concentration, pH and chloride-ion content, automatically adjusting ozone dosing, air-water backwashing and slag discharge, supporting remote cloud monitoring, requiring no dedicated 24-hour on-site duty.

3. General Core Advantages of the Complete System

Fully enclosed pressurized operation: wastewater and ozone reaction exhaust gas circulate in enclosed pipelines throughout, with the tail gas equipped with an ozone decomposition device, producing no odor and no toxic gas leakage, complying with chemical park safety production norms; low civil construction investment: skid-mounted integrated equipment replaces large civil structures, greatly reducing infrastructure construction cost and footprint; harmless tail gas recycling: residual ozone is recovered and decomposed, with no exhaust gas secondary pollution and lower tail gas treatment cost.

Summary of Environmental and Comprehensive Economic Value

(1) Environmental Value

The inorganic composite carrier has extremely strong chemical stability, with no precious-metal or heavy-metal ion leaching throughout operation, eliminating the risk of water heavy-metal secondary pollution;

Efficiently mineralizes trace persistent toxic organic matter, stably guarantees reclaimed water reuse and compliant wastewater discharge, helping enterprises achieve near-zero-emission green production;

Greatly reduces flocculation, decolorization and oxidation agent dosing, significantly reducing chemical sludge hazardous waste generation and lowering the enterprise's hazardous waste disposal environmental pressure;

Unified catalytic decomposition of ozone tail gas, no ozone exhaust gas escape, clean plant operation environment, meeting environmental inspection requirements.

(2) Economic Value

Ozone utilization >= 99%, smaller ozone generator installed power at the same effluent standard, long-term electricity savings;

Catalyst service life > 5 years, supports multiple acid-washing regenerations, greatly extending the overall media replacement cycle, with controllable annual average media allocation procurement cost;

Skid-mounted complete equipment reduces civil construction investment, online renovation avoids production-stop losses; reclaimed water reuse cuts tap water intake fees and discharge fees, continuously creating water-saving benefits;

Ultra-low wear and long-term anti-clogging characteristics greatly reduce media replenishment, equipment cleaning labor and consumable input, with a whole life-cycle operation and maintenance cost superior to A20 and ordinary market precious-metal catalysts.

(3) Engineering Implementation Guarantee

The KLE-HEC-200-A40 complete catalytic process has completed long-term industrial stable verification in high-chlorine chemical, pharmaceutical, landfill leachate and petrochemical industries, with low equipment failure rate and no large-scale deactivation or pulverization. SINOKLE is equipped with a professional technical service team that can provide one-stop full-chain technical support including water quality testing, process customization, equipment installation and commissioning, catalyst regeneration and maintenance, and annual inspection; the company holds high-tech, specialized and innovative, ISO three-system, and more than twenty invention patent qualifications, providing ample project implementation reliability.

Conclusion

The SINOKLE KLE-HEC-200-A40 high-loading precious-metal ozone catalyst, relying on four core patented technologies-high-loading precious-metal synergistic catalysis, double-layer anti-chloride-ion protective layer, extra-large specific-surface-area micropores, and double-layer super-hydrophilic anti-pollution modification-specifically addresses the industry pain points of low-concentration, high-chlorine, trace-toxic biochemical tailwater treatment, with performance superior to the same-series A20 economical precious-metal model.

The product is deeply linked with SINOKLE's proprietaryCDFU、CDOFcomplete water treatment equipment, forming an integrated advanced oxidation solution suited to reclaimed water reuse, high-chlorine chemical tailwater and high-standard upgrading renovation. Balancing pollutant removal effect, ozone energy consumption, whole-life-cycle media operation and maintenance cost, construction convenience and safety-environmental requirements, it is the preferred top-grade precious-metal catalytic media for deep oxidation of COD < 200 mg/L, high-salinity high-chlorine refractory industrial wastewater, suitable for large chemical parks, pharmaceutical bases and landfill environmental projects with stringent requirements on effluent quality and long-term stable operation.