Location History:
- Jiangsu, CN (2016)
- Nanjing, CN (2015 - 2022)
Company Filing History:
6 out of 255 
2 out of 2 Years Active: 2015-2025
Title: Innovations and Contributions of Inventor Shujuan Zhang
Introduction
Shujuan Zhang is a notable inventor based in Nanjing, China. He has made significant contributions to the field of environmental science through his innovative patents. With a total of six patents to his name, Zhang's work focuses on improving water treatment processes and addressing environmental challenges.
Latest Patents
One of Zhang's latest patents is the development of a polyzirconium coagulant and its application. This coagulant is obtained through a controllable hydrolytic polymerization reaction on a simple zirconium salt. It demonstrates excellent coagulation performance in removing turbidity, organic matter, phosphate, and fluoride from water bodies. The coagulation effluent produced has a low concentration of residual metal and maintains a mild change in pH. Compared to simple zirconium salts and polymerized zirconium chloride with a low polymerization degree, this polyzirconium coagulant has a wider workable pH and dose range. Additionally, it outperforms other metal salt coagulants in terms of decontamination efficiency, producing larger flocs that settle rapidly while maintaining low residual zirconium concentrations.
Another significant patent involves the application of acetylacetone in inhibiting the growth of cyanobacteria. This innovative approach involves adding acetylacetone to water affected by cyanobacteria, with a dosage of no less than 7 mg/L. The compound effectively inhibits