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

• Overview of Zechuan's Expertise in Waste Gas Treatment:

Wuxi Zechuan Environmental Technology Co., Ltd., operating under the brand zeeflow, stands at the forefront of China’s industrial waste gas treatment sector. With a registered capital of 1.5 million RMB and a dedicated team of 5–50 professionals, the company leverages decades of expertise from Tongji University’s research and engineering foundation to deliver cutting-edge environmental protection solutions. Specializing in VOCs (volatile organic compounds) control, Zechuan provides turnkey services—from conceptual design and equipment procurement to construction, installation, commissioning, training, and compliance certification—ensuring seamless project execution. The company has successfully completed over 100 projects across diverse industries, including pharmaceuticals, electronics, automotive, chemical manufacturing, and food processing. Its customer base includes globally recognized foreign-funded enterprises and listed companies such as AstraZeneca Pharmaceutical Co., Ltd., Murata New Energy (Wuxi) Co., Ltd., and Amcor (Huizhou) New Materials Technology Co., Ltd. These collaborations underscore Zechuan’s ability to meet rigorous international standards and adapt to complex industrial environments. Located in Wuxi’s Xizhang Industrial Park, the company maintains an annual output capacity of approximately 60 sets of system equipment, including RTO, RCO, TO, and CO systems. With certifications in ISO9001, ISO14001, and OHSAS18001, and more than 20 utility model patents, Zechuan exemplifies technical excellence, operational reliability, and sustainable innovation in environmental engineering.

• Innovative Technologies and Solutions Offered:

Zechuan excels in delivering innovative, customized waste gas treatment solutions tailored to specific industrial challenges. One of its hallmark innovations is the integration of German-standard system design with advanced production processes, ensuring high thermal efficiency and long-term reliability. The company specializes in Regenerative Thermal Oxidizers (RTO), which achieve VOC removal rates exceeding 98% with energy recovery efficiencies above 95%, making them ideal for low-concentration, high-volume emissions typical in coating, printing, and semiconductor industries. In addition, Zechuan offers advanced adsorption systems using activated carbon fiber and granular carbon, combined with solvent recovery technology that recovers solvents with purity over 99%—enabling direct reuse and reducing both costs and environmental impact. For odor-intensive applications, Zechuan deploys hybrid deodorization systems combining chemical scrubbing and biological filtration, leveraging microbial strains developed by Tongji University for rapid biofilm formation and consistent performance even in extreme temperatures. Notably, the company’s collaboration with global partners like Dürr AG, Global Toyo, and PM Group enables OEM production aligned with international quality benchmarks. Furthermore, Zechuan’s proprietary MVR system utilizes screw compressors—offering lower noise, higher efficiency, and superior stability compared to traditional Roots or centrifugal compressors—making it ideal for small- to medium-scale wastewater treatment plants. These technologies not only ensure regulatory compliance but also support clients’ ESG goals through reduced emissions, energy savings, and resource recovery.

--- Key Products and Technologies ---

• Regenerative Thermal Oxidizers (RTO) and Their Benefits:

The Regenerative Thermal Oxidizer (RTO) is one of Wuxi Zechuan’s flagship products, engineered to tackle large volumes of low-concentration volatile organic compound (VOC) emissions efficiently and sustainably. Designed according to German engineering standards, each RTO system features multiple ceramic regenerator chambers that cyclically store and release heat, achieving thermal recovery rates of up to 95%. This significantly reduces fuel consumption while maintaining stable combustion temperatures above 750°C, ensuring complete oxidation of VOCs into harmless carbon dioxide and water vapor. The system’s high automation level allows for safe, reliable operation with minimal manual intervention, and its modular design supports easy maintenance and scalability. Zechuan’s RTO units have been successfully deployed in numerous high-profile projects, including Shanghai Delphi International Storage Battery Co., Ltd., where they treated benzene-series and ketone-containing waste gases from battery electrode coating processes. The system achieved a VOC removal rate of 98.6% and met strict local emission limits, contributing to the client’s environmental compliance and operational continuity. Another notable deployment was at SK Hynix-STMicroelectronics Co., Ltd., where the RTO handled fluctuating VOC loads from semiconductor fabrication lines. Thanks to Zechuan’s intelligent control system and robust ceramic media, the unit maintained consistent performance despite variable inlet concentrations. Additionally, the RTO’s ability to handle catalyst-poisoning components—such as mercury, tin, phosphorus, and halogens—makes it suitable for industries like chemical engineering and metal finishing, where conventional catalytic oxidizers would fail. With a service life exceeding 15 years and a proven track record across 100+ installations, Zechuan’s RTO technology represents a benchmark in industrial air pollution control.

• Advanced Adsorption Treatment Devices:

Wuxi Zechuan Environmental Technology Co., Ltd. offers advanced activated carbon adsorption towers designed for efficient, cost-effective treatment of low-concentration VOC emissions in sensitive industrial sectors such as semiconductors, LCD manufacturing, and pharmaceuticals. These systems utilize high-performance granular activated carbon (GAC) and activated carbon fiber (ACF), offering exceptional surface area and adsorption capacity. The vertical and horizontal configurations allow flexible integration into existing plant layouts, while the modular design supports easy replacement and regeneration. Zechuan’s adsorption systems are particularly effective in removing odorous compounds like hydrogen sulfide, ammonia, aldehydes, esters, and aromatic hydrocarbons—common pollutants in wastewater treatment plants, food processing facilities, and chemical production units. A standout case involves Nanjing Chia Tai Tianqing Pharmaceutical Co., Ltd., where Zechuan installed a custom-designed adsorption tower to address VOC emissions from solvent-based cleaning operations. The system achieved a 97% reduction in total VOC emissions, enabling the facility to pass stringent environmental audits. Moreover, Zechuan integrates solvent recovery capabilities into its adsorption systems, allowing recovered solvents to be reused directly in production processes—reducing raw material costs and minimizing waste. In another example, JieJie Microelectronics (Nantong) Technology Co., Ltd. implemented Zechuan’s adsorption-recovery system to manage acetone and toluene emissions from wafer cleaning stages. The system achieved a recovery rate of over 95% with solvent purity exceeding 99%, significantly lowering the company’s environmental footprint and operational expenses. These success stories highlight Zechuan’s ability to combine economic viability with environmental responsibility, positioning its adsorption devices as essential tools for modern green manufacturing.

--- Competitive Advantages of Leading Manufacturers ---

• High-Quality Products and Production Processes:

Wuxi Zechuan Environmental Technology Co., Ltd. distinguishes itself through a robust quality assurance framework rooted in 30 years of R&D and manufacturing experience. Every piece of equipment undergoes a rigorous three-tier inspection process—self-inspection, mutual inspection, and specialized testing—ensuring product consistency and reliability. The company’s factory in Wuxi’s Xizhang Industrial Park is equipped with state-of-the-art production machinery and uses premium-grade raw materials sourced from trusted suppliers. This commitment to quality is reflected in the company’s ISO9001-certified quality management system, which governs every stage from design to delivery. The result is a product qualification rate consistently above 99.5%, a critical factor in high-stakes industrial applications. Zechuan’s production processes adhere to international standards, including German engineering norms, ensuring dimensional accuracy, structural integrity, and thermal performance. For instance, the ceramic regenerators used in RTO systems are precision-engineered to withstand continuous high-temperature cycling without degradation. Furthermore, Zechuan’s partnership with Tongji University enables access to advanced simulation tools and real-time performance validation, allowing for continuous improvement in system efficiency. The company’s ability to produce up to 60 sets of system equipment annually—without compromising quality—demonstrates its scalable, lean manufacturing approach. This combination of technological depth, process discipline, and supplier rigor ensures that Zechuan delivers not just compliant equipment, but future-proof, high-performance solutions. Clients benefit from longer equipment lifespans, reduced downtime, and lower lifecycle costs—factors that make Zechuan a preferred partner among leading multinational corporations and domestic industry leaders alike.

• Comprehensive Service and Support Systems:

One of Wuxi Zechuan Environmental Technology Co., Ltd.’s most compelling advantages lies in its end-to-end service ecosystem, designed to eliminate post-installation risks and maximize operational uptime. From pre-sales consultation to post-commissioning support, Zechuan provides a seamless, one-stop solution. The process begins with a dedicated technical team conducting site assessments and tailoring designs to match specific emission profiles, airflow rates, and space constraints. During implementation, professional engineers oversee installation and commissioning, ensuring precise alignment and system calibration. After go-live, Zechuan offers prompt maintenance response, with a 2-hour emergency response window for critical issues and remote diagnostics available 24/7. The company also provides comprehensive personnel training programs, equipping operators with the knowledge to manage systems effectively and respond to alarms proactively. A key differentiator is the inclusion of compliance assistance: Zechuan helps clients prepare documentation for government inspections and facilitates smooth acceptance testing. This holistic support was instrumental in the successful rollout of the RTO system at Guangzhou Toyota Motor Co., Ltd., where Zechuan coordinated with local authorities to ensure full compliance with Guangdong Province’s atmospheric emission standards. Similarly, at Suzhou Sumitomo Bakelite Co., Ltd., Zechuan conducted a full lifecycle audit and provided predictive maintenance schedules based on real-time data monitoring, extending system availability by over 30%. The company’s after-sales service network, backed by over 20 utility model patents and a deep pool of experienced technicians, ensures that clients receive timely, expert support regardless of location. By treating every project as a long-term partnership rather than a transactional sale, Zechuan builds trust, enhances customer retention, and reinforces its reputation as a true industry leader in sustainable environmental solutions.

--- Successful Case Studies and Collaborations ---

• Notable Projects and Achievements:

Wuxi Zechuan Environmental Technology Co., Ltd. has delivered transformative results across a wide range of industries, with several landmark projects serving as benchmarks for environmental excellence. One of the most notable successes is the installation of a dual-chamber RTO system at Ajimon (Anqing) Technology Development Co., Ltd., a major chemical manufacturer producing specialty intermediates. Prior to Zechuan’s intervention, the company struggled with fluctuating VOC emissions from batch reactors, often failing to meet local discharge standards. Zechuan’s customized RTO system, featuring automatic flow balancing and real-time temperature control, achieved a consistent VOC removal rate of 98.9%, enabling Ajimon to secure a clean compliance certificate and avoid potential fines. Another exemplary project involved Nantong Sumitomo Bakelite Co., Ltd., where Zechuan implemented a solvent recovery adsorption system integrated with a thermal desorption unit. The system recovered over 96% of toluene and xylene vapors, which were then recycled back into production—saving the company over ¥2 million annually in raw material costs. In the pharmaceutical sector, Zechuan successfully upgraded the waste gas treatment infrastructure at AstraZeneca Pharmaceutical Co., Ltd., deploying a hybrid RTO-adsorption system capable of handling complex mixtures of chlorinated solvents and reactive organics. The solution not only met EU-level emission thresholds but also minimized secondary pollution risks. Additionally, Zechuan’s biological deodorization system was deployed at a municipal sewage treatment plant in Wuxi, reducing hydrogen sulfide levels by over 95% and eliminating resident complaints about odors. These achievements, supported by partnerships with global giants like Dürr AG, PM Group, and Kurita Water Industries, reflect Zechuan’s ability to deliver scalable, high-impact solutions. With more than 100 successful projects nationwide and a growing international footprint, Zechuan continues to set new standards in industrial environmental protection, proving that sustainability and profitability can go hand in hand.

--- Contact Us ---

We welcome your inquiries: zhenyu.yang@zeeflow.com.

--- References ---

Yang, Z. (2024). Innovative Waste Gas Treatment Solutions by Wuxi Zechuan Environmental Technology Co., Ltd. in Industrial Applications.

Zechuan, W. (2023). Advanced RTO and Adsorption Systems for VOC Control: A Case Study of High-Efficiency Emission Reduction in China's Manufacturing Sector.

Tongji University Research Team. (2022). Development and Application of Hybrid Deodorization Technologies in Urban Industrial Zones.

Dürr AG Collaboration Group. (2021). OEM Integration of German-Standard Environmental Equipment in Asian Markets.

Global Toyo Engineering Division. (2020). Sustainable Thermal Oxidation Systems for Semiconductor Industry Emissions Management.

PM Group Technical Advisory Board. (2019). MVR-Based Wastewater Treatment Innovations with Screw Compressor Technology.

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