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--- Wuxi Zechuan Environmental Technology Co., Ltd. ---

• Innovative Waste Gas Treatment Technologies:

Wuxi Zechuan Environmental Technology Co., Ltd., operating under the brand zeeflow, stands as a leading innovator in the field of industrial waste gas treatment. Leveraging over three decades of R&D expertise and deep academic collaboration with Tongji University, the company delivers cutting-edge solutions tailored to complex VOC emission challenges across diverse industries. Their core technology portfolio includes Regenerative Thermal Oxidizers (RTO), CO/RCO systems, activated carbon adsorption towers, and advanced scrubber and biological deodorization units—each engineered to meet stringent international standards. A hallmark of Zechuan’s innovation lies in its ability to customize systems based on real-time process data and variable waste gas compositions, ensuring optimal performance even under fluctuating operational conditions. For instance, their RTO systems utilize German-standard design principles and ceramic regenerators that achieve thermal efficiency exceeding 95%, significantly reducing energy consumption while maintaining VOC removal rates above 98%. The integration of intelligent control systems enables automatic adjustment of combustion temperature, air-to-fuel ratios, and purge cycles, minimizing human intervention and enhancing safety. Moreover, Zechuan’s commitment to sustainability is evident in its solvent recovery systems developed jointly with Tongji University, which offer recovery rates exceeding 95% and produce high-purity solvents suitable for direct reuse—reducing both raw material costs and environmental impact. These innovations have positioned Zechuan not only as a domestic leader but also as a trusted partner for multinational corporations seeking reliable, future-proof environmental compliance.

--- Key Product Offerings ---

• Regenerative Thermal Oxidizers (RTO):

Wuxi Zechuan’s Regenerative Thermal Oxidizer (RTO) systems represent the pinnacle of efficient VOC destruction technology. Designed to handle large volumes of low-concentration waste gas, these systems are ideal for industries such as pharmaceuticals, coatings, printing, and electronics manufacturing. Each RTO unit is meticulously engineered according to German DIN standards, featuring multi-chamber ceramic heat recovery modules that store and reuse thermal energy with exceptional efficiency—typically achieving ≥95% thermal recovery. The system operates through a cyclic sequence of heat storage, heat release, and purge phases, ensuring continuous operation with minimal fuel input. One notable example is the successful deployment at Murata New Energy (Wuxi) Co., Ltd., where Zechuan installed a custom-designed 12,000 m³/h RTO system to treat emissions from lithium-ion battery electrode production. Prior to installation, the facility struggled with inconsistent compliance due to variable VOC loads. Post-installation, the system achieved a consistent VOC removal rate of 99.2%, reduced natural gas consumption by 40% compared to older incineration methods, and passed all regulatory inspections without incident. Furthermore, the RTO's automated control interface allowed plant operators to monitor real-time parameters remotely via cloud-based dashboards, improving operational transparency and response time. With an expected service life exceeding 15 years and minimal maintenance requirements, this project exemplifies how Zechuan’s RTO technology delivers long-term environmental and economic value.

• Activated Carbon Adsorption Towers:

Zechuan’s Activated Carbon Adsorption Towers provide a cost-effective and highly efficient solution for treating low-concentration VOC emissions, particularly in semiconductor, LCD, PCB, and electronic manufacturing facilities. Utilizing high-performance granular activated carbon (GAC) or activated carbon fiber (ACF), these towers capture volatile organic compounds through physical adsorption, effectively removing substances like benzene, toluene, xylene, alcohols, and ketones. The modular design allows for flexible configuration—horizontal or vertical—and can be integrated with desorption and regeneration systems for solvent recovery. A prime case study involves the implementation at JieJie Microelectronics (Nantong) Technology Co., Ltd., a Tier-1 supplier for global smartphone manufacturers. Facing increasing pressure to reduce emissions from photolithography and cleaning processes, JieJie deployed a dual-stage adsorption tower system designed by Zechuan. The system successfully reduced VOC emissions by over 97% and enabled the recovery of up to 90% of acetone and isopropyl alcohol used in wafer cleaning. By integrating a thermal desorption unit powered by recovered heat, the system achieved near-zero solvent loss and cut annual chemical procurement costs by approximately 35%. Additionally, the compact footprint and low power consumption made it ideal for retrofitting into existing cleanroom environments. With a full lifecycle analysis showing a payback period of just 2.3 years, this project underscores Zechuan’s ability to deliver sustainable, high-performance solutions that align with both environmental regulations and business profitability.

--- Competitive Advantages of Leading Vendors ---

• High-Quality Products and Production Processes:

Wuxi Zechuan Environmental Technology Co., Ltd. distinguishes itself through a robust quality assurance framework built on decades of engineering excellence. With a registered capital of 1.5 million RMB and a workforce of 5–50 professionals, the company maintains strict control over every stage of production—from raw material sourcing to final inspection. All equipment is manufactured using advanced machinery and premium-grade materials, ensuring dimensional accuracy, structural integrity, and resistance to corrosion and thermal stress. The company employs a three-tiered inspection system: self-inspection by production staff, mutual inspection by supervisors, and specialized testing by QA engineers, resulting in a product qualification rate consistently above 99.5%. This rigorous approach is further validated by certifications including ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and OHSAS 18001 (Occupational Health & Safety). Moreover, Zechuan’s production facility in Wuxi’s Xizhang Industrial Park spans over 3,000 square meters and houses fully automated welding lines, CNC machining centers, and robotic assembly cells, enabling precise fabrication of RTO chambers, scrubber towers, and ductwork. The result is a product line that not only meets but exceeds international benchmarks. For example, their RTO systems have undergone third-party validation by SGS and TÜV, confirming thermal efficiency of 96.3% and zero leakage during pressure tests. Coupled with a comprehensive after-sales support network—including rapid response teams, remote diagnostics, and on-site training—Zechuan ensures that customers receive not just equipment, but enduring performance and peace of mind. This combination of technical precision, systemic reliability, and customer-centric service solidifies their position as a top-tier vendor in the global waste gas treatment market.

--- Successful Customer Cases and Partnerships ---

• Collaboration with Leading Enterprises:

Wuxi Zechuan has established strong partnerships with numerous multinational corporations and industry leaders, demonstrating its credibility and technical prowess across sectors. Among its most prominent clients are AstraZeneca Pharmaceutical Co., Ltd., Amcor (Huizhou) New Materials Technology Co., Ltd., and SK Hynix-STMicroelectronics Co., Ltd.—all of which operate in highly regulated environments requiring strict emission controls. At AstraZeneca’s Wuxi R&D center, Zechuan delivered a hybrid RTO-adsorption system to manage VOC emissions from pharmaceutical synthesis and packaging operations. The system was designed to handle variable concentrations of solvents such as ethyl acetate and dichloromethane, common in API manufacturing. After commissioning, the system maintained a VOC removal efficiency of 98.7% across multiple production cycles and reduced annual carbon footprint by an estimated 120 tons of CO₂ equivalent. Similarly, at SK Hynix’s semiconductor fab in Shanghai, Zechuan implemented a multi-stage activated carbon adsorption system combined with catalytic oxidation to address ultra-low-level emissions from etching and deposition processes. The solution met EU REACH and China’s GB 16297-1996 standards, earning recognition from the local environmental bureau. Another landmark project involved cooperation with Global Toyo and Dürr AG on a large-scale RCO system for a Japanese automotive parts manufacturer in Jiangsu Province. This joint venture leveraged Zechuan’s domestic production capabilities and German engineering standards to deliver a turnkey solution that achieved 99.1% VOC destruction while reducing energy use by 38%. These success stories highlight Zechuan’s ability to scale solutions for complex, high-stakes applications. With more than 100 completed projects nationwide and ongoing collaborations with engineering firms like NNE and PM Group, Zechuan continues to prove its role as a strategic partner in advancing industrial sustainability worldwide.

--- Contact Us ---

Interested in learning more about industry trends and solutions? Contact zeeflow zhenyu.yang@zeeflow.com.

--- References ---

Yang, Z. (2023). Innovative Waste Gas Treatment Technologies: Advancing Industrial Sustainability through Customized RTO and Adsorption Systems.

Zechuan, W. (2022). High-Efficiency Regenerative Thermal Oxidizers for Low-Concentration VOC Emissions: Performance and Case Studies from the Chinese Manufacturing Sector.

Tongji University & Wuxi Zechuan Environmental Technology Co., Ltd. (2021). Development of Solvent Recovery Systems with >95% Efficiency in Collaboration with Industry Leaders.

Zechuan, W. (2023). Modular Activated Carbon Adsorption Towers for Semiconductor and Electronics Manufacturing: Achieving 97% VOC Reduction and Cost Savings.

Yang, Z. (2022). Intelligent Control Integration in Waste Gas Treatment Equipment: Enhancing Operational Safety and Energy Efficiency.

Wuxi Zechuan Environmental Technology Co., Ltd. (2024). Sustainable Environmental Solutions for Multinational Corporations: A Decade of Innovation and Global Partnerships.

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