Flow-way water depth affects algal productivity and nutrient uptake in a filamentous algae nutrient scrubber

Sutherland, DL; Burke, J; Ralph, PJ

Flow-way water depth affects algal productivity and nutrient uptake in a filamentous algae nutrient scrubber

Sutherland, DL Burke, J Ralph, PJ

Permalink

Publisher:: SPRINGER
Publication Type:: Journal Article
Citation:: Journal of Applied Phycology, 2020, 32, pp. 4321-4332
Issue Date:: 2020-01-01

Closed Access

	Filename	Description	Size
	Sutherland2020_Article_Flow-wayWaterDepthAffectsAlgal.pdf	Published version	1.19 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Sutherland, DL
dc.contributor.author	Burke, J
dc.contributor.author	Ralph, PJ
dc.date.accessioned	2020-11-26T05:45:12Z
dc.date.available	2020-11-26T05:45:12Z
dc.date.issued	2020-01-01
dc.identifier.citation	Journal of Applied Phycology, 2020, 32, pp. 4321-4332
dc.identifier.issn	0921-8971
dc.identifier.issn	1573-5176
dc.identifier.uri	http://hdl.handle.net/10453/144385
dc.description.abstract	© 2020, Springer Nature B.V. Filamentous algae treatment systems can provide cost-effective treatment of a range of wastewater types. In the current study, filamentous algae nutrient scrubbers (FANS), treating anaerobically digested food-waste centrate, were used to investigate the role of flow-way water depth (5, 10 and 15 mm) on productivity and nutrient removal. The study found that the proportion of light reaching the surface of the filamentous algae mat (Emat) increased with decreasing water depth, with 5-mm depth significantly higher than 10 mm (p < 0.05) and 15 mm (p < 0.01). On all sampling occasions, both the total solids and ash-free dry mass biomass productivities, as well as the chlorophyll a biomass, were all significantly higher (p < 0.01) on the FANS operated at 5 mm depth compared with 15 mm. Both the percentage carbon (C) and percentage phosphorus (P) were significantly higher in the biomass from 15 mm compared with 5 and 10 mm deep. Percentage nitrogen (N) content did not differ significantly between treatments but biological nitrogen removal rates (particulate N removed m−2 day−1) were significantly higher on the 5-mm-deep FANS compared with the 10 mm deep (p < 0.05) and the 15 mm deep (p < 0.01). The C:N ratio of algal biomass varied but not with depth whereas the C:P ratio significantly decreased (p < 0.01) with increasing water depth. These results indicate the important roles that light and water depth play on the performance of FANS.
dc.language	English
dc.publisher	SPRINGER
dc.relation.ispartof	Journal of Applied Phycology
dc.relation.isbasedon	10.1007/s10811-020-02275-1
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0607 Plant Biology, 0704 Fisheries Sciences, 1002 Environmental Biotechnology
dc.subject.classification	Marine Biology & Hydrobiology
dc.title	Flow-way water depth affects algal productivity and nutrient uptake in a filamentous algae nutrient scrubber
dc.type	Journal Article
utslib.citation.volume	32
utslib.for	0607 Plant Biology
utslib.for	0704 Fisheries Sciences
utslib.for	1002 Environmental Biotechnology
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - C3 - Climate Change Cluster
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2020-11-26T05:45:06Z
pubs.publication-status	Published
pubs.volume	32

Abstract:

© 2020, Springer Nature B.V. Filamentous algae treatment systems can provide cost-effective treatment of a range of wastewater types. In the current study, filamentous algae nutrient scrubbers (FANS), treating anaerobically digested food-waste centrate, were used to investigate the role of flow-way water depth (5, 10 and 15 mm) on productivity and nutrient removal. The study found that the proportion of light reaching the surface of the filamentous algae mat (Emat) increased with decreasing water depth, with 5-mm depth significantly higher than 10 mm (p < 0.05) and 15 mm (p < 0.01). On all sampling occasions, both the total solids and ash-free dry mass biomass productivities, as well as the chlorophyll a biomass, were all significantly higher (p < 0.01) on the FANS operated at 5 mm depth compared with 15 mm. Both the percentage carbon (C) and percentage phosphorus (P) were significantly higher in the biomass from 15 mm compared with 5 and 10 mm deep. Percentage nitrogen (N) content did not differ significantly between treatments but biological nitrogen removal rates (particulate N removed m−2 day−1) were significantly higher on the 5-mm-deep FANS compared with the 10 mm deep (p < 0.05) and the 15 mm deep (p < 0.01). The C:N ratio of algal biomass varied but not with depth whereas the C:P ratio significantly decreased (p < 0.01) with increasing water depth. These results indicate the important roles that light and water depth play on the performance of FANS.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/144385