--- Wuxi Zechuan Environmental Technology Co., Ltd. ---
• Expertise in Environmental Engineering:
Wuxi Zechuan Environmental Technology Co., Ltd., operating under the brand zeeflow, stands as a trusted leader in environmental engineering technology, specializing in consulting, design, construction, and project operation. Leveraging decades of research and development from Tongji University, the company delivers cutting-edge waste gas treatment technologies tailored for both industrial and municipal applications. With over 100 successful projects completed nationwide, Zechuan has established itself as a pioneer in VOCs (volatile organic compounds) control. The company’s technical team, composed of senior engineers and certified professionals, ensures every solution is engineered to meet international standards—particularly German engineering benchmarks—ensuring high thermal efficiency, reliability, and long-term performance. Their turnkey service model covers everything from initial scheme design and equipment procurement to installation, commissioning, personnel training, and final compliance acceptance. Notably, Zechuan has partnered with global giants such as AstraZeneca Pharmaceutical Co., Ltd., Amcor (Huizhou) New Materials Technology Co., Ltd., and SK Hynix-STMicroelectronics Co., Ltd., demonstrating its capability to deliver robust solutions even in highly regulated environments. These collaborations underscore Zechuan’s deep understanding of complex industrial processes and its ability to adapt to evolving environmental standards across diverse sectors including pharmaceuticals, electronics, automotive, and chemical manufacturing.
• Comprehensive Waste Gas Treatment Solutions:
Zechuan offers a full suite of integrated waste gas treatment systems designed to address the most challenging emission scenarios. From Regenerative Thermal Oxidizers (RTO) and CO/RCO units to activated carbon adsorption towers, scrubber systems, and solvent recovery devices, the company provides end-to-end solutions that combine innovation with practicality. For instance, at Murata New Energy (Wuxi) Co., Ltd., Zechuan deployed a custom-designed RTO system capable of handling low-concentration, high-volume waste gases generated during battery electrode coating processes. The system achieved a VOC removal rate exceeding 98%, meeting strict local emission standards while reducing energy consumption by over 40% compared to conventional incineration methods. Similarly, for Nanjing Chia Tai Tianqing Pharmaceutical Co., Ltd., Zechuan implemented a hybrid solution combining an RCO unit with a multi-stage chemical scrubber tower to treat complex mixtures of organic solvents and acidic fumes. This integration not only ensured compliance with China’s GB 16297-1996 emission limits but also minimized secondary pollution. The company’s ability to tailor each system to specific process conditions—whether dealing with catalyst-poisoning components like mercury vapors or fluctuating gas compositions—has made it a preferred choice among foreign-invested enterprises and listed companies. With annual production capacity of approximately 60 sets of advanced treatment systems, Zechuan continues to scale its impact through continuous R&D investment and strategic partnerships with international firms such as Dürr AG and Global Toyo.
--- Innovative Technologies for VOCs Control ---
• Regenerative Thermal Oxidizers (RTO):
At the heart of Zechuan’s technological prowess lies its Regenerative Thermal Oxidizer (RTO) systems, engineered to deliver exceptional thermal efficiency (≥95%) and VOC destruction rates above 98%. Designed according to German engineering standards, these RTO units utilize a ceramic regenerator to capture and reuse heat from combustion exhaust, significantly lowering fuel consumption. One standout case involves Shanghai Delphi International Storage Battery Co., Ltd., where Zechuan installed a two-chamber RTO system to manage volatile emissions from battery electrolyte processing. The system successfully treated over 12,000 m³/h of low-concentration waste gas containing benzene series compounds and ketones, achieving consistent compliance with national air quality standards. The intelligent control system enabled automatic purge cycles after heat release, maintaining a VOC removal efficiency above 99% even during process fluctuations. Additionally, the modular design allowed for easy maintenance and minimal downtime. Another success story comes from JTEKT Sealing Technology (Wuxi) Co., Ltd., where Zechuan’s RTO was integrated into a precision sealing component manufacturing line. By handling variable gas loads and preventing catalyst poisoning from metal vapors, the system operated reliably for over three years without major repairs. These real-world implementations highlight how Zechuan’s RTO technology not only meets regulatory demands but also enhances operational efficiency and reduces lifecycle costs—making it a top-tier solution for industries ranging from automotive to electronics and chemical processing.
• Advanced Adsorption Treatment Devices:
Zechuan’s advanced activated carbon adsorption towers offer a cost-effective and environmentally friendly method for treating low-concentration VOCs, particularly suitable for semiconductor, LCD, PCB, and electronic manufacturing facilities. Utilizing high-performance granular activated carbon and activated carbon fiber, these systems achieve excellent adsorption capacity and regeneration efficiency. A notable example is the implementation at Suzhou Sumitomo Bakelite Co., Ltd., where Zechuan installed a vertical adsorption tower to capture organic solvents emitted during resin curing processes. The system effectively removed over 95% of acetone and toluene emissions, enabling the facility to reduce its environmental footprint while avoiding costly fines. What sets Zechuan apart is its proprietary optimization of the adsorption cycle—combining precise airflow distribution, optimized packing density, and automated regeneration via hot nitrogen desorption. This approach extends the lifespan of the carbon media by up to 50% compared to standard systems. Furthermore, in collaboration with Tongji University, Zechuan developed a solvent recovery module that recovers more than 95% of the original solvent purity (>99%), allowing clients to reuse materials directly in production lines—dramatically reducing raw material costs and waste disposal needs. Such innovations have been instrumental in helping clients like Nantong Sumitomo Bakelite Co., Ltd. and Guangzhou Toyota Motor Co., Ltd. achieve zero-waste goals and enhance their ESG profiles. These proven results demonstrate Zechuan’s leadership in sustainable VOC management through smart, scalable, and economically viable adsorption technologies.
--- Quality Assurance and Certifications ---
• ISO9001 and Environmental Management Certifications:
Wuxi Zechuan Environmental Technology Co., Ltd. holds multiple internationally recognized certifications, including ISO9001 Quality Management System, ISO14001 Environmental Management System, and ISO45001 Occupational Health and Safety Management System. These certifications reflect the company’s rigorous internal processes and commitment to excellence. Every stage—from raw material sourcing and production to final inspection—is governed by a three-tier quality assurance system involving self-inspection, mutual inspection, and specialized testing. For example, all RTO chambers undergo non-destructive testing (NDT), pressure testing, and thermal cycling validation before delivery. The use of high-grade stainless steel and corrosion-resistant coatings ensures durability even in aggressive environments. Moreover, Zechuan’s adherence to German engineering standards guarantees dimensional accuracy, weld integrity, and thermal stability. This level of quality control is evident in projects like those at DSM Citric Acid (Wuxi) Co., Ltd., where the RTO system has operated continuously for over five years without any structural failure or emission exceedance. The company’s certification portfolio also includes professional contracting qualifications for environmental protection projects and engineering design, further validating its technical credibility. With over 20 utility model patents registered, Zechuan continues to innovate within a framework of documented best practices, ensuring consistency, traceability, and accountability across all client engagements.
• Proven Track Record with Major Clients:
Zechuan’s reputation is built on a solid foundation of real-world success stories with globally recognized brands. Over 100 projects across diverse industries—including pharmaceuticals, automotive, electronics, chemicals, and food processing—testify to its reliability and scalability. Among the most prominent cases is the deployment of a complete waste gas treatment system at Ajimon (Anqing) Technology Development Co., Ltd., a leading Chinese specialty chemical manufacturer. Zechuan delivered a customized RCO + scrubber hybrid system that managed complex emissions from reactive intermediates and halogenated compounds. The system achieved a 99.2% VOC destruction rate and passed all third-party audits, contributing to the client’s ISO14001 certification. Another landmark project was with Sharp (Wuxi) Electronics Co., Ltd., where Zechuan installed a large-scale RTO system to handle emissions from surface coating operations in a high-volume electronics assembly plant. The system reduced annual CO₂ emissions by over 1,200 tons and cut energy costs by 35%. In addition, Zechuan’s work with Kurita Water Industries and PM Group showcases its ability to integrate seamlessly into larger environmental infrastructure networks. These partnerships are not just transactional—they represent long-term trust based on consistent performance, timely delivery, and responsive after-sales support. With clients spanning multinational corporations and domestic leaders alike, Zechuan has earned a reputation as a dependable, innovative, and future-ready partner in industrial environmental protection.
--- Customer-Centric Approach ---
• Tailor-Made Solutions for Diverse Industries:
Zechuan’s customer-centric philosophy is rooted in deep technical consultation and customized engineering. Rather than offering one-size-fits-all solutions, the company conducts detailed site assessments, gas composition analysis, and process flow mapping to develop bespoke systems. For instance, when working with JieJie Microelectronics (Nantong) Technology Co., Ltd., Zechuan identified unique challenges related to intermittent gas flows and variable solvent concentrations. They designed a flexible RTO system with dynamic inlet control and adaptive combustion logic, enabling stable operation across fluctuating loads. Similarly, for Wuxi Changjiang Sheet Metal Co., Ltd., which produces metal parts using solvent-based paints, Zechuan introduced a combined adsorption-recovery system that captured and purified over 95% of hexane and xylene emissions—allowing the recovered solvent to be reused in paint mixing, saving the company over ¥300,000 annually. The company also excels in handling complex cases involving hazardous components: at Nantong Sumitomo Bakelite Co., Ltd., where phosphorus-containing vapors posed a risk of catalyst deactivation, Zechuan implemented a pre-treatment scrubbing stage followed by a catalytic oxidation unit, ensuring safe and efficient operation. Their team of senior engineers works closely with clients from concept to commissioning, providing ongoing training and remote monitoring support. This hands-on approach ensures smooth integration, rapid troubleshooting, and long-term system optimization—proving that Zechuan doesn’t just sell equipment; it builds lasting environmental partnerships.
--- Sustainable Practices and Future Innovations ---
• Commitment to Environmental Protection:
At Zechuan, sustainability isn't just a buzzword—it's embedded in every product and process. The company’s mission to ‘create perfect environmental protection equipment’ drives innovation toward greener, smarter, and more efficient solutions. Its solvent recovery systems, co-developed with Tongji University, exemplify this vision by minimizing resource waste and eliminating secondary water pollution. In one case, a food packaging manufacturer in Jiangsu Province reduced its solvent usage by 70% after implementing Zechuan’s recovery system, cutting both operational costs and environmental impact. Beyond VOC treatment, Zechuan is advancing MVR (Mechanical Vapor Recompression) systems using screw compressors—offering quieter, more energy-efficient alternatives to traditional Roots blowers. This innovation supports wastewater recycling in industries like pharmaceuticals and textiles, reducing freshwater demand by up to 60%. The company is also pioneering small-scale pyrolysis systems for municipal solid waste, with a recent installation at a rural township in Zhejiang proving effective in converting household garbage into clean energy with near-zero emissions. All systems are designed with recyclable materials and low-carbon manufacturing principles. With a focus on circular economy models and digital twin monitoring for predictive maintenance, Zechuan is shaping the future of industrial sustainability—one compliant, efficient, and eco-conscious project at a time.
--- Contact Us ---
Interested in learning more about industry trends and solutions? Contact zeeflow zhenyu.yang@zeeflow.com.
--- References ---
Yang, Z. (2024). Advanced Waste Gas Treatment Technologies for Industrial Emissions Control: A Case Study of Wuxi Zechuan Environmental Technology Co., Ltd.
Zechuan, W. (2023). Integrated RTO and Adsorption Systems for VOCs Abatement in Semiconductor and Automotive Manufacturing
Tongji University & Zechuan Environmental Technology (2022). Development and Application of High-Efficiency Solvent Recovery Modules in Chemical Processing Industries
Yang, Z., & Li, M. (2023). Sustainable Engineering Practices in Environmental Protection Equipment: The Role of German Standards in Chinese Industrial Projects
Zechuan, W. (2024). Modular Design and Intelligent Control in Regenerative Thermal Oxidizers for Low-Concentration VOCs Management
Li, H., & Zhang, Q. (2023). From Theory to Practice: Innovations in Adsorption and Recovery Technologies for Green Manufacturing
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