Class

Article

College

College of Engineering

Department

English Department

Faculty Mentor

Ronald Sims

Presentation Type

Poster Presentation

Abstract

This project will aim to develop a rotating algae bioreactor (RABR) design that maximizes biofilm assimilation rate (BAR) for total nitrogen (TN) and total phosphorus (TP) reduction from reclaimed water. The optimization variables that will be tested are photosynthetic active radiation (PAR) and duty cycle. The industry established constraints for this project are that nutrient concentration must be reduced from 500 mg/L to 200 mg/L total nitrogen (TN) and from 50 mg/L to 15 mg/L total phosphorous (TP). The reclaimed water and algae will be collected from the Central Valley Water Reclamation Facility (CVWRF) in Salt Lake City, Utah.Further, this project will aim to determine net energy of the RABR system. This will be done by relating kWh power needed to run the RABRs to energy produced per gram of biofilm. Biomass production will be monitored via ash free dry weight and related to energy production via the use of a bomb calorimeter. Ideally, a net energy value 6.4 kWh/kg biomass shall be observed.These data will then be scaled up for use at CVWRF. If implemented, nutrient content of the influent and effluent at the facility will be monitored weekly. Also, biofilm productivity and autotrophic index will be determined weekly.

Location

Logan, UT

Start Date

4-8-2022 12:00 AM

Included in

Engineering Commons

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Apr 8th, 12:00 AM

Rotating Algae Biofilm Reactor Design for Optimization of Nutrient Uptake and Bioproducts

Logan, UT

This project will aim to develop a rotating algae bioreactor (RABR) design that maximizes biofilm assimilation rate (BAR) for total nitrogen (TN) and total phosphorus (TP) reduction from reclaimed water. The optimization variables that will be tested are photosynthetic active radiation (PAR) and duty cycle. The industry established constraints for this project are that nutrient concentration must be reduced from 500 mg/L to 200 mg/L total nitrogen (TN) and from 50 mg/L to 15 mg/L total phosphorous (TP). The reclaimed water and algae will be collected from the Central Valley Water Reclamation Facility (CVWRF) in Salt Lake City, Utah.Further, this project will aim to determine net energy of the RABR system. This will be done by relating kWh power needed to run the RABRs to energy produced per gram of biofilm. Biomass production will be monitored via ash free dry weight and related to energy production via the use of a bomb calorimeter. Ideally, a net energy value 6.4 kWh/kg biomass shall be observed.These data will then be scaled up for use at CVWRF. If implemented, nutrient content of the influent and effluent at the facility will be monitored weekly. Also, biofilm productivity and autotrophic index will be determined weekly.