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E2.02A Selvaratnam 2014 ReNUWIt Annual Meeting Poster

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Abstract/Contents

Abstract
Nutrient removal from primary-settled wastewater was evaluated using Galdieria sulphuraria, an acidophilic and moderately thermophilic alga. Biomass yield of 27.4 g/g nitrogen removed found in this study is higher than the average reported in the literature (25.7 g/g). Seven-day removal efficiency of ammoniacal-N was 88% and that of phosphates was 95.5%; corresponding removal rates were 4.85 and 1.21 mg L-1 d-1. Although these rates are slightly lower than the average literature values for other strains (6.36 and 1.34 mg L-1 d-1, respectively), G. sulphuraria has the potential to yield higher energy and could render wastewater treatment energy- positive. Feasibility of growing G. sulphuraria outdoors at densities higher than those typically reported for high-rate oxidation ponds is also demonstrated.

Description

Type of resource other
Date created May 2014

Creators/Contributors

Author Selvaratnam, T.
Author Reddy, H.
Author Gedara, Shanka Henkannatte
Author Montleys, F.
Author Rodriguez, G.
Author Deng, S.
Author Nirmalakhandan, Nagamany

Subjects

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
Subject New Mexico
Subject algae
Subject algal biofuel
Subject algal cultivation
Subject algal wastewater treatment
Subject anaerobic digestion
Subject aqueous phase
Subject biofuel production
Subject biomass
Subject carbon
Subject chlorella
Subject conversion
Subject cultivation
Subject culture
Subject energy recovery
Subject galdieria sulphuraria
Subject hydrothermal liquefaction
Subject microalgae
Subject nannochloropsis sp
Subject nitrogen removal
Subject nutrient recycle
Subject nutrient removal
Subject phosphate removal
Subject photosynthesis
Subject polysaccharides
Subject removal
Subject technology
Subject urban wastewaters
Subject wastewater
Subject wastewater treatment

Bibliographic information

Related Publication Selvaratnam, T., Henkanatte-Gedera, S. M., Muppaneni, T., Nirmalakhandan, N., Deng, S., & Lammers, P. J. (2016). Maximizing recovery of energy and nutrients from urban wastewaters. Energy, 104, 16-23. http://doi.org/10.1016/j.energy.2016.03.102
Related Publication Selvaratnam, T., Pegallapati, A., Montelya, F., Rodriguez, G., Nirmalakhandan, N., Lammers, P. J., & van Voorhies, W. (2015). Feasibility of algal systems for sustainable wastewater treatment. Renewable Energy, 82, 71-76. http://doi.org/10.1016/j.renene.2014.07.061
Related Publication Selvaratnam, T., Pegallapati, A. K., Montelya, F., Rodriguez, G., Nirmalakhandan, N., Van Voorhies, W., & Lammers, P. J. (2014). Evaluation of a thermo-tolerant acidophilic alga, Galdieria sulphuraria, for nutrient removal from urban wastewaters. Bioresource Technology, 156, 395-399. http://doi.org/10.1016/j.biortech.2014.01.075
Related Publication Selvaratnam, T., Pegallapati, A. K., Reddy, H., Kanapathipillai, N., Nirmalakhandan, N., Deng, S., & Lammers, P. J. (2015). Algal biofuels from urban wastewaters: Maximizing biomass yield using nutrients recycled from hydrothermal processing of biomass. Bioresource Technology, 182, 232-238. http://doi.org/10.1016/j.biortech.2015.01.134
Related Publication Selvaratnam, T., Reddy, H., Muppaneni, T., Holguin, F. O., Nirmalakhandan, N., Lammers, P. J., & Deng, S. (2015). Optimizing energy yields from nutrient recycling using sequential hydrothermal liquefaction with Galdieria sulphuraria. Algal Research-Biomass Biofuels and Bioproducts, 12, 74-79. http://doi.org/10.1016/j.algal.2015.07.007
Location https://purl.stanford.edu/jz229xc1843

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Preferred citation

Selvaratnam, T. and Reddy, H. and Gedara, Shanka Henkannatte and Montleys, F. and Rodriguez, G. and Deng, S. and Nirmalakhandan, Nagamany . (2014). E2.02A Selvaratnam 2014 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/jz229xc1843

Collection

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

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Contact information

nkhandan@nmsu.edu

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