Building a sustainable future

Focusing on efficiency & performance

Quanzhou Zhengnuo Environmental Protection Technology Co., Ltd. was established in 1996 and is a company dedicated to providing one-stop solutions for environmental protection. Professional R&D and production of crude oil, refining equipment, waste oil regeneration equipment, water treatment equipment , and waste gas treatment equipment.

The company has strong research and development capabilities, and has established long-term cooperation and research and development mechanisms with research institutions such as the National Academy of Sciences in Singapore, the Chinese Academy of Environmental Sciences, Xiamen University, and Nanyang Technological University in Singapore. It has more than 20 patents, among which the high-frequency vibrating membrane refining and regeneration system has obtained an invention patent and won the “DFJ-CISO” China Zone Special Award and the “Technology Innovation Award”

Relying on professional technical support and excellent service quality, we have built a strategic cooperation network covering leading enterprises in multiple fields

29+

Years of Oil, Water & Gas Treatment

Driving Innovation, Earning Recognition

Quanzhou Zhengnuo Environmental Protection Technology Co., Ltd. boasts strong research and technological capabilities, holding over 20 patents. The company has been recognized with honors such as “National Science and Technology Small and Medium-sized Enterprise” and “High-Tech Enterprise.” Notably, its high-frequency vibrating membrane waste oil regeneration system has received an invention patent and earned prestigious awards including the “DFJ-CISO China Zone Special Award,” the “Most Promising Technology Trading Award,” and the “Science and Technology Innovation Award.”

Smart Treatment, Cleaner Results

For sewage treatment, we utilize a combination of the activated sludge method and biofilm technology, integrating the strengths of both approaches. This results in high-quality effluent, low sludge production, and a system that is easy to operate, efficient, and highly reliable.

For waste oil treatment, we employ a new generation of advanced membrane separation technology that overcomes the limitations of traditional membrane filtration—such as clogging and difficulty in continuous operation—ensuring greater stability and efficiency.

Engineered Precision, Guaranteed Reliability

We are ISO 9001 certified, and all our processes strictly adhere to international quality standards, with oversight from a team of senior engineers at every stage. From initial consultation to final product delivery, we follow a comprehensive six-step service process to ensure every product meets rigorous safety and performance standards.

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29

Completed projects

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100%

client satisfaction

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22

Patents

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6

Countries