Dennis J Barnes

Title: Innovations in Wastewater Treatment by Dennis J Barnes

Introduction

Dennis J Barnes is an accomplished inventor based in West Allis, WI (US). He has made significant contributions to the field of wastewater treatment, particularly in enhancing phosphorus removal processes. His innovative approach addresses critical environmental challenges associated with contaminated wastewaters.

Latest Patents

Dennis J Barnes holds a patent for a process designed to enhance phosphorus removal in activated sludge wastewater treatment systems. This process effectively treats contaminated wastewaters that contain biochemical oxygen demand (BOD), nitrogen, and phosphorus. The patented method utilizes an activated sludge tank, a solid-liquid separator, and a bioreactor to significantly reduce or eliminate waste activated sludge (WAS) within a sludge stream. A sidestream reactor is employed downstream from the bioreactor to remove soluble phosphates left in the sludge stream by the low WAS process. Within the sidestream reactor, a source of multivalent metal ions is added to a slightly alkaline sludge stream to precipitate the phosphates. The solid phosphates, having a specific gravity higher than that of the organic matter in the sludge stream, can be separated based on differential settling velocity.

Career Highlights

Dennis J Barnes has dedicated his career to advancing wastewater treatment technologies. He is currently associated with Siemens Water Technologies Holding Corp., where he continues to innovate and improve processes that contribute to environmental sustainability. His work has garnered attention for its practical applications in treating wastewater effectively.

Collaborations

Dennis has collaborated with Robert A Elefritz, Jr., who is also involved in the field of wastewater treatment. Their combined expertise has contributed to the development of effective solutions for managing contaminated wastewaters.

Conclusion

Dennis J Barnes is a notable inventor whose work in wastewater treatment has made a significant impact on environmental management. His innovative processes for phosphorus removal demonstrate the importance of technological advancements in addressing ecological challenges.