Lloyd D Stewart, Jr

Title: Lloyd D Stewart, Jr: Innovator in Environmental Remediation

Introduction

Lloyd D Stewart, Jr. is a notable inventor based in Berkeley, CA (US). He has made significant contributions to the field of environmental remediation, particularly in the area of subsurface decontamination. His innovative methods have the potential to address critical environmental challenges.

Latest Patents

Lloyd D Stewart, Jr. holds a patent for a process titled "Process for in situ decontamination of subsurface soil and groundwater." This method involves the injection of steam into contaminated subsurface areas through injection wells. It also includes the withdrawal of liquids and vapors from extraction wells under subatmospheric pressure. The steam is passed through the contaminated area in an essentially horizontal direction, effectively removing a substantial portion of the contamination. After this initial phase, steam injection is ceased, but extraction continues to volatilize and remove residual water and contaminants trapped in the soil. Periodic resumption of steam injection is employed to reheat the area and replenish water in the soil pores.

Career Highlights

Lloyd D Stewart, Jr. is affiliated with the University of California, where he has been able to apply his expertise in environmental science and engineering. His work has garnered attention for its innovative approach to addressing soil and groundwater contamination.

Collaborations

Some of his notable coworkers include Kent S Udell and Nicholas Sitar, who have collaborated with him on various projects related to environmental remediation.

Conclusion

Lloyd D Stewart, Jr. is a pioneering inventor whose work in subsurface decontamination represents a significant advancement in environmental technology. His contributions continue to influence the field and offer solutions to pressing environmental issues.