Na Chang

Title: Innovations by Na Chang in Wastewater Treatment

Introduction

Na Chang is an accomplished inventor based in Tianjin, China, known for his significant contributions to the field of industrial wastewater treatment. With a total of two patents, he has developed innovative solutions aimed at addressing environmental challenges associated with printing and dyeing processes.

Latest Patents

Na Chang's latest patents include a nanofiltration membrane for treating printing and dyeing wastewater and its preparation method. This invention focuses on creating a membrane that effectively treats industrial wastewater, thereby reducing environmental impact. The preparation method involves several steps, including pouring an aqueous solution onto a polysulfone ultrafiltration membrane, followed by a series of reactions and treatments to obtain the final nanofiltration membrane. Another notable patent is the preparation method for recycling inorganic salt in printing and dyeing wastewater. This method includes impurity removal, softening, and two-stage electrodialysis, ultimately allowing for the reuse of concentrated saline water in cloth dyeing processes.

Career Highlights

Throughout his career, Na Chang has worked with esteemed institutions such as Tiangong University and Zhejiang Jinmo Environmental Technology Co., Ltd. His work has significantly advanced the field of wastewater treatment, showcasing his commitment to innovation and environmental sustainability.

Collaborations

Na Chang has collaborated with notable colleagues, including Haitao Wang and Yinong Xu, who have contributed to his research and development efforts in wastewater treatment technologies.

Conclusion

Na Chang's innovative patents and career achievements highlight his dedication to improving industrial processes and environmental sustainability. His work continues to inspire advancements in wastewater treatment technologies.