Environmental Engineer & Environmental Biotechnology Researcher

Environmental engineer based in the Greater Phoenix area with experience in environmental biotechnology, scrap tire valorization, microbial chain elongation, and contaminated-site assessment. Comfortable working across bench-scale experiments, analytical chemistry, and applied engineering projects.

Currently working as an Environmental Engineer at Arcadis U.S., Inc., with a research background at Arizona State University focused on microbially mediated rubber recycling, biofuel production, and characterization of petroleum-impacted soils.

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Overview

I work at the intersection of environmental engineering and environmental biotechnology, focusing on microbially driven processes, contaminated sites, and sustainable materials.

Professional Experience Highlights

Environmental Engineer · Arcadis U.S., Inc.

Greater Phoenix Area · Full-time · Current

Supporting environmental engineering and remediation projects for public- and private-sector clients, with an emphasis on sustainability, data-driven analysis, and regulatory compliance.

  • Site assessment, sampling, and environmental monitoring for soil, groundwater, and related media.
  • Data analysis and reporting for contaminated sites, including TPH and hydrocarbon characterization.
  • Preparation of technical documentation and client-facing reports aligned with regulatory requirements.
  • Application of environmental biotechnology background to support sustainable project decisions.

Research Assistant · Arizona State University

School of Sustainable Engineering and the Built Environment · Biodesign Swette Center for Environmental Biotechnology

Graduate research in environmental biotechnology and sustainable materials, including chain-elongation bioprocesses, scrap tire rubber valorization, and hydrocarbon-contaminated soils.

  • Operated anaerobic bioreactors and serum-bottle systems to study ethanol and acetate chain elongation.
  • Used GC and HPLC to quantify hydrocarbons, VFAs, and fermentation products.
  • Contributed to microbially mediated rubber recycling and scrap tire valorization projects.

For a full work history, see the Experience page.

Skills & Technical Competencies

Environmental Engineering

  • Contaminated soils and total petroleum hydrocarbons (TPH) characterization.
  • Wastewater and sewage treatment processes (STP exposure).
  • Sustainable infrastructure and materials reuse (scrap tire rubber, rubberized pavements).

Environmental Biotechnology

  • Microbial chain elongation for butyrate, caproate, and butanol.
  • Microbially mediated rubber recycling and desulfurization of scrap tire rubber.
  • Anaerobic mixed cultures and bioreactor operation.

Analytical Methods

  • Gas chromatography (GC) and liquid chromatography (HPLC).
  • Sample extraction and fractionation of TPH into aromatic and aliphatic components.
  • Bench-scale microcosm and bioreactor studies.

Data & Communication

  • Data analysis, plotting, and reporting (Excel and related tools).
  • Technical writing for research manuscripts and industry reports.
  • Cross-disciplinary communication among engineering and biotechnology teams.

Research & Publications

Peer-reviewed work in environmental biotechnology, scrap tire valorization, and microbial chain elongation.

  1. Microbially Mediated Rubber Recycling to Facilitate the Valorization of Scrap Tires

    Kabir S.F., Sundar S.V., Robles A., Miranda E.M., Delgado A.G., Fini E.H.

    Polymers, 2024.

  2. Butanol as a Major Product During Ethanol and Acetate Chain Elongation

    Robles A., Sundar S.V., Mohana Rangan S., Delgado A.G.

    Frontiers in Bioengineering and Biotechnology, 2023.

Details and summaries are available on the Research page, and a complete list of publications is maintained on ResearchGate.

Education

More detail on coursework, research affiliations, and professional development is available on the Education page.

Contact

For recruiting, collaboration, or a full CV, please use the channels below.

A dedicated contact form and additional details are available on the Contact page.