Nadim R Khandaker

Title: Innovations in Water Decontamination by Nadim R Khandaker

Introduction

Nadim R Khandaker is an accomplished inventor based in Albuquerque, NM (US). He has made significant contributions to the field of water decontamination, holding a total of 3 patents. His work focuses on innovative methods to remove harmful contaminants from water, showcasing his commitment to environmental sustainability.

Latest Patents

Khandaker's latest patents include a method for removing arsenic and other anionic contaminants from contaminated water using enhanced coagulation. This improved water decontamination process involves contacting water containing anionic contaminants with an enhanced coagulant to form an enhanced floc. This floc efficiently binds anionic species such as arsenate, arsenite, chromate, fluoride, selenate, and borate predominantly through the formation of surface complexes. The enhanced coagulant comprises a trivalent metal cation coagulant, such as ferric chloride or aluminum sulfate, mixed with a divalent metal cation modifier like copper sulfate or zinc sulfate.

Another notable patent is an in situ remediation process using divalent metal cations. This process treats ambient solid materials, such as soils and aquifer solids, by adding one or more divalent metal cations to the material. The added cations, such as copper or zinc, combine with existing metal oxide/hydroxides to form an effective sorbent material. This material binds and immobilizes anionic contaminant species, providing a solution for contaminated environments.

Career Highlights

Khandaker is currently associated with Sandia Corporation, where he continues to develop innovative solutions for environmental challenges. His work has garnered attention for its practical applications in improving water quality and addressing contamination issues.

Collaborations

Throughout his career, Khandaker has collaborated with notable colleagues, including Patrick V Brady and James L Krumhansl. These collaborations have contributed to the advancement of his research and the successful implementation of his patented technologies.

Conclusion

Nadim R Khandaker's contributions to water decontamination through his innovative patents highlight his dedication to environmental protection. His work not only addresses critical contamination issues but also paves the way for future advancements in the field.