Stuart A Gairns

Title: Innovations by Inventor Stuart A Gairns

Introduction

Stuart A Gairns is a notable inventor based in Burnaby, Canada. He has made significant contributions to the field of environmental engineering, particularly in the treatment of effluents and process optimization. With a total of three patents to his name, Gairns has developed innovative solutions that address critical challenges in industrial processes.

Latest Patents

One of Gairns' latest patents is titled "Integrated Effluent Treatment Process for Nitroaromatic Manufacture." This patent describes an integrated process for treating alkaline wash water effluent from nitroaromatic manufacture, which primarily contains nitro-hydroxy-aromatic compounds. The process concentrates the alkaline wash water to recover chemicals and water before treating the concentrate through supercritical water oxidation. This step involves treating the concentrate in the presence of an oxygen source under supercritical conditions, leading to the oxidation of a substantial portion of the organic components. The resulting effluent includes gaseous, clean water, and potentially an ash component, significantly reducing chemical and water consumption compared to existing methods. Additionally, the treated wash water can be recycled or directly discharged.

Another significant patent by Gairns is the "Apparatus for the Self-Cleaning of Process Tubes." This invention features a periodic self-cleaning apparatus designed for use with process tubes, such as tubular reactors. The system includes a launching and receiving chamber for a cleaning device, or pig, which is propelled through the tube by the fluid's motive force. This innovative design allows for cleaning without disrupting the continuous flow of the process fluid, eliminating the need for extraneous fluid pumps.

Career Highlights

Throughout his career, Stuart A Gairns has worked with several prominent companies, including Noram Engineering and Constructors Ltd. and Modell Environmental Corporation. His experience in these organizations has contributed to his expertise in developing efficient and sustainable engineering solutions.

Collaborations

Gairns has collaborated with notable professionals in his field, including David Anthony Boyd and Alfred A Guenkel. These collaborations have likely enriched his work and contributed to the success of his innovative projects.

Conclusion

Stuart A Gairns is a distinguished inventor whose work in environmental engineering has led to significant advancements in effluent treatment processes. His innovative patents reflect a commitment to sustainability and efficiency in industrial practices.