E2.02A Abeysiriwardana 2019 ReNUWIt Annual Meeting Poster

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Abstract/Contents

Abstract: Ability of the pilot scale (700L) Photosynthetically Oxygenated Waste-to-Energy Recovery (POWER) system in removing biochemical oxygen demand (BOD), ammoniacal nitrogen (N), phosphate (P), and pathogenic bacteria from primary- settled wastewater in a single step has been demonstrated for over two years.
In the current study, a kinetic approach for predicting the fate of BOD, N and P and the fed-batch process to meet the discharge standards is developed and validated. First order removal rates of ammoniacal N, P and BOD determined using data from 10 fed-batch cycles were used to model and predict the temporal fate of N, P, BOD and the fed-batch cycle times in 30 other fed-batch cycles. Good agreement between measured and predicted N, P and BOD concentrations was found with r2 = 82.1%, r2 = 86.8% and, r2 = 70%, respectively. Fair agreement was also found between the measured and predicted fed-batch cycle times with r2 = 60%.

Type of resource	other
Date created	May 2019

Author	Abeysiriwardana, Isuru Sachitra
Author	Tchinda, Duplex
Author	Niramalakhandan, Nagamany

Subject	Re-inventing the Nation’s Urban Water Infrastructure
Subject	ReNUWIt
Subject	E2.02A
Subject	Efficient Engineered Systems
Subject	Energy and resource recovery
Subject	Las Cruces Wastewater Treatment Plant
Subject	Las Cruces
Subject	New Mexico
Subject	algal wastewater treatment
Subject	bacteria
Subject	dissolved oxygen
Subject	escherichia coli
Subject	growth
Subject	microbial community
Subject	microorganisms
Subject	organic carbon
Subject	pathogen inactivation
Subject	pathogens
Subject	recovery
Subject	removal
Subject	substances
Subject	sunlight
Subject	survival
Subject	temperature
Subject	toxicity

Related Publication	Delanka-Pedige, H. M. K., Munasinghe-Arachchige, S. P., Cornelius, J., Henkanatte-Gedera, S. M., Tchinda, D., Zhang, Y. Y., & Nirmalakhandan, N. (2019). Pathogen reduction in an algal-based wastewater treatment system employing Galdieria sulphuraria. Algal Research-Biomass Biofuels and Bioproducts, 39. http://doi.org/10.1016/j.algal.2019.101423
Related Publication	Munasinghe-Arachchige, S. P., Delanka-Pedige, H. M. K., Henkanatte-Gedera, S. M., Tchinda, D., Zhang, Y. Y., & Nirmalakhandant, N. (2019). Factors contributing to bacteria inactivation in the Galdieria sulphuraria-based wastewater treatment system. Algal Research-Biomass Biofuels and Bioproducts, 38. http://doi.org/10.1016/j.algal.2018.101392
Location	https://purl.stanford.edu/nc687wp9057

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Preferred Citation: Abeysiriwardana, Isuru Sachitra and Tchinda, Duplex and Niramalakhandan, Nagamany. (2019). E2.02A Abeysiriwardana 2019 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/nc687wp9057

Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt)

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