Recycling algae to improve species control and harvest efficiency from a high rate algal pond

Water Research
J B K ParkA Shilton

Abstract

This paper investigates the influence of recycling gravity harvested algae on species dominance and harvest efficiency in wastewater treatment High Rate Algal Ponds (HRAP). Two identical pilot-scale HRAPs were operated over one year either with (HRAP(r)) or without (HRAP(c)) harvested algal biomass recycling. Algae were harvested from the HRAP effluent in algal settling cones (ASCs) and harvest efficiency was compared to settlability in Imhoff cones five times a week. A microscopic image analysis technique was developed to determine relative algal dominance based on biovolume and was conducted once a month. Recycling of harvested algal biomass back to the HRAP(r) maintained the dominance of a single readily settleable algal species (Pediastrum sp.) at >90% over one year (compared to the control with only 53%). Increased dominance of Pediastrum sp. greatly improved the efficiency of algal harvest (annual average of >85% harvest for the HRAP(r) compared with ∼60% for the control). Imhoff cone experiments demonstrated that algal settleability was influenced by both the dominance of Pediastrum sp. and the species composition of remaining algae. Algal biomass recycling increased the average size of Pediastrum sp. colonies by 13-30% ...Continue Reading

References

Oct 21, 2005·Water Research·Jen-Jeng Chen, Hsuan-Hsien Yeh
Jun 7, 2006·Water Science and Technology : a Journal of the International Association on Water Pollution Research·S K ChoiK J Cho
Jun 27, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·S HeubeckA Shilton
Nov 1, 1987·Biotechnology and Bioengineering·A Lavoie, J de la Noüe
Feb 24, 2009·Applied and Environmental Microbiology·Serena RasconiTélesphore Sime-Ngando
Feb 13, 2010·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J B K Park, R J Craggs
Aug 3, 2010·Bioresource Technology·J B K ParkA N Shilton
Feb 19, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·R J CraggsJ R Benemann
Mar 18, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J P S Sukias, R J Craggs
Aug 27, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J B K Park, R J Craggs
Oct 8, 2011·Water Science and Technology : a Journal of the International Association on Water Pollution Research·J B K Park, R J Craggs

❮ Previous
Next ❯

Citations

Dec 20, 2013·Environmental Technology·Aníbal Fonseca SantiagoAlberto José Delgado dos Reis
Jan 25, 2016·Water Research·Anbarasan AnbalaganEmma Nehrenheim
Nov 3, 2012·Ecotoxicology and Environmental Safety·Guang-Jie ZhouGuang-Guo Ying
Aug 15, 2012·Current Opinion in Biotechnology·Andrew N ShiltonBenoit Guieysse
Sep 16, 2015·Environmental Technology·Malin HultbergHåkan Asp
Apr 9, 2014·Bioresource Technology·Sofie Van Den HendeHan Vervaeren
Dec 4, 2014·Bioresource Technology·Abbas MehrabadiMohammed M Farid
Aug 26, 2014·Environmental Technology·Paula Peixoto AssemanyJose Jovanny Bermudez Sierra
Jul 1, 2016·World Journal of Microbiology & Biotechnology·Prabuddha L GuptaHee-Jeong Choi
Jul 28, 2016·Bioresource Technology·Enrica Uggetti, Jaume Puigagut
May 18, 2016·Journal of Applied Microbiology·P YoungH J Fallowfield
Jul 30, 2016·Bioresource Technology·Cuixia LiuBo Xiao
Sep 21, 2016·Applied Microbiology and Biotechnology·F Gabriel AciénE Molina-Grima
Sep 27, 2016·Environmental Technology·Taynan de Oliveira CostaLetícia Rodrigues de Assis
Nov 7, 2016·Bioresource Technology·Abbas MehrabadiMohammed M Farid
Mar 29, 2014·Environmental Science. Processes & Impacts·B D ShoenerJ S Guest
Dec 14, 2016·Journal of Water and Health·A A WurochekkeH M Matias-Peralta
Apr 11, 2018·Critical Reviews in Biotechnology·Ankita SrivastavaHee-Mock Oh
Feb 26, 2020·3 Biotech·Ziliang ChengShiquan Niu
May 18, 2017·Scientific Reports·Dae-Hyun ChoRishiram Ramanan
Mar 28, 2017·Journal of Applied Phycology·Francesco G Gentili, Jerker Fick
Aug 25, 2020·Journal of Microbiology and Biotechnology·Dae-Hyun ChoSeunghee Bae
Jan 17, 2021·The Science of the Total Environment·Jackeline de Siqueira CastroMaria Lúcia Calijuri

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.

Related Papers

Water Science and Technology : a Journal of the International Association on Water Pollution Research
J B K Park, Rupert J Craggs
Water Science and Technology : a Journal of the International Association on Water Pollution Research
J B K Park, Rupert J Craggs
© 2021 Meta ULC. All rights reserved