Shih-Yuen Chang

Title: Innovations in Wastewater Treatment by Shih-Yuen Chang

Introduction

Shih-Yuen Chang is a notable inventor based in Chiayi, Taiwan. He has made significant contributions to the field of wastewater treatment, particularly in processing wastewater with high concentrations of ammonia-nitrogen. His innovative methods aim to enhance the efficiency of wastewater management, addressing critical environmental concerns.

Latest Patents

Shih-Yuen Chang holds a patent for a method titled "Method for processing wastewater having organic high-concentration ammonia-nitrogen." This method involves an apparatus that includes a catalyzation tank and a subsequent neutralization tank. The process allows for the introduction of organic ammonia-nitrogen wastewater into the tank for reaction without the need for pre-adjustment by acidic agents or mixing with other additives. A persulfate oxidant is utilized to achieve high-efficiency oxidative degradation of ammonia-nitrogen and toxic organics in the wastewater. The method effectively catalyzes oxidation through ultraviolet activation and tiny-amount-transition-metal catalyzation, leading to the simultaneous reduction or complete removal of ammonia-nitrogen and organic carbon contents.

Career Highlights

Shih-Yuen Chang is currently associated with Cpc Corporation, Taiwan, where he continues to develop innovative solutions for wastewater treatment. His work focuses on creating methods that comply with biological treatment conditions and discharge-water quality standards. The high-efficiency catalyzing oxidation process he developed degrades various toxic organics, aromatics, and heterocyclic compounds, converting ammonia-nitrogen into non-toxic nitrogen gas and nitrate-nitrogen.

Collaborations

Shih-Yuen Chang collaborates with esteemed colleagues, including Yi-Fong Huang and I-Cheng Chou. Their combined expertise contributes to the advancement of wastewater treatment technologies.

Conclusion

Shih-Yuen Chang's innovative approach to wastewater treatment represents a significant advancement in environmental technology. His patented method not only addresses the challenges of high-concentration ammonia-nitrogen but also promotes sustainable practices in wastewater management.