nutrient cycling

Nutrient Cycling in Waste Streams

Nutrient cycling in waste streams, including municipal wastewater and food waste, is critical to the prevention of eutrophication in receiving water bodies and to the recovery of nutrients for downstream applications. We have utilized next-generation sequencing and bioinformatics pipelines to interrogate microbial communities involved in biological nutrient removal and recovery, namely the cycling of nitrogen, carbon, and phosphorus. In my dissertation, I used metagenomics to expand the model for acidogenesis and acetogenesis from food waste.

Metatranscriptomic investigation of adaptation in NO and N2O production from a lab-scale nitrification process upon repeated exposure to anoxic–aerobic cycling

This study identified underlying metabolic processes and mechanisms contributing to NO and N2O production in a lab-scale BNR process

Structural and functional interrogation of selected biological nitrogen removal systems in the United States, Denmark, and Singapore using shotgun metagenomics

Metagenomics revealed that inoculation and operating conditions of engineered bioprocesses shape the resident microbial structure and function far more than the bioprocess configuration.

Comammox functionality identified in diverse engineered biological wastewater treatment

A metagenomic survey was conducted to quantify contributions of comammox bacteria to overall nitrogen cycling in BNR processes.

Meta-omics of the Engineered Water Cycle (Nitrogen Cycling in Wastewater Treatment)

Application of Ion Torrent NGS and metagenomics and metatranscriptomics to the study of N-cycling in wastewater treatment.

Using Molecular Techniques and Next-Generation Sequencing to Understand and Optimize Wastewater Treatment Processes

Review of conventional and next-generation molecular techniques used in the design and operation of wastewater treatment processes.