Mengistu Geza Nisrani

Research Expertise

My research focuses on improving prediction of hydrologic and contaminant fluxes for better management of water resources using combination of field, laboratory, and modeling approaches. Current projects include: watershed modeling, development decision support tools for water resource management, green infrastructures for treating storm water in urban streams, fate and transformation of nitrogen, and organics in the vadose zone during soil-based wastewater treatment; modeling impacts of using tailored reclaimed water on nitrate leaching from irrigated crops, GIS-based nitrogen transport modeling for assessing aquifer vulnerability from onsite wastewater systems.

DST: Produced water management tool

The Decision Support Too (DST) [DST_Pr_v1.xlsm] is an optimization tool for the selection of oil and gas coal bed methane produced water treatment options for different wastewaters. Users can input feed water quality from various sources by region. The DST selects treatment methods capable of meeting beneficial use water quality requirement and calculates costs associated with a treatment train. DOWNLOAD DST

STUMOD

STUMOD_v2 is a tool developed for the purpose of predicting the fate and transport of nitrogen in soil treatment units (STUMOD, or Soil Treatment Unit Model). STUMOD calculates nitrogen species concentrations, and the fraction of total nitrogen reaching the aquifer or a specified soil depth. Input data include parameters for hydraulics and nutrient transport and transformation parameters. DOWNLOAD STUMOD

 

 

Brief Bio

I am an Assistant Professor in Civil and Environmental Engineering at the SD Mines. I received my M.S. and Ph.D. in Environment and Water Resources Engineering. I worked as a research faculty and currently affiliated to Colorado School of Mines with a focus in watershed modeling and development of decision support tools for water resources management. Currently at SD Mines, I do research in water resource management and teach courses in hydrology and water resources.

Teaching

CEE 337 Engineering Hydrology: A quantification study of the components of the hydrologic cycle with emphasis on engineering applicants involving the design of water supplies, reservoirs, spillways, floodways, and urban drainage with computer applications. CEE 433/533 Open Channel Flow: Application of continuity, momentum, and energy principles to steady flow in open channels; flow in open channels; flow in the laminar and transition ranges; specific energy and critical depth; energy losses; channel controls; gradually and rapidly varied flow; and high velocity flow.

Course Listing