Autoflotation harvesting of algae from high-rate pond effluents

Koopman, Ben; Lincoln, E.P.

doi:10.1016/0141-4607(83)90038-0

Cited by 38 publications

(16 citation statements)

References 1 publication

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“…The treatment used must be suitable for the removal of these micro-organisms [10]. However, research on non-conventional methods should be made to better eliminate microalgae.…”

Section: Introductionmentioning

confidence: 99%

Microalgae removal from Ghrib Dam (Ain Defla, Algeria) water by electroflotation using stainless steel electrodes

Ghernaout

Benblidia

Khemici³

2015

Desalination and Water Treatment

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A B S T R A C TThis study investigates the microalgae removal from Ghrib Dam water by electroflotation (EF) using stainless steel electrodes. The results obtained show that EF is excellent in microalgae removal (~100%). The effects of parameters such as: current density (i), initial pH and distance between electrodes (d) are examined. The optimal conditions are: i = 170 A m −2 and d = 1 cm during 15 min at pH 7.8. Future research must focus on microalgae lysis, toxin release and degradation due to EF treatment. Precautions must be taken such as reducing the applied voltage, increasing the residence time in the electrochemical device and adding a powdered activated carbon adsorption stage.

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“…The treatment used must be suitable for the removal of these micro-organisms [10]. However, research on non-conventional methods should be made to better eliminate microalgae.…”

Section: Introductionmentioning

confidence: 99%

Microalgae removal from Ghrib Dam (Ain Defla, Algeria) water by electroflotation using stainless steel electrodes

Ghernaout

Benblidia

Khemici³

2015

Desalination and Water Treatment

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“…Neutralizing and reducing microalgal surface charge by applying positively charged electrodes and cationic polymers is commonly performed to flocculate the microalgal biomass. Some multivalent salts, such as ferric chloride (FeCl 3 ], have been widely used as flocculants and coagulants [23,30]. Some studies also reported that the flocculation of microalgal biomass could be carried out by adjusting the pH and by simple electrolysis [31,32].…”

Section: Flocculationmentioning

confidence: 99%

Review of Microalgae Harvesting via Co-Pelletization with Filamentous Fungus

Gultom

2013

Energies

143

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Cultivation of microalgae to utilize CO 2 and nutrients in the wastewater to generate biofuel products is a promising research objective. However, the process faces tremendous technical difficulties, especially the harvest of microalgae cells, an economically challenging step. Several researchers recently reported co-culturing of filamentous fungi with microalgae so that microalgae cells can be co-pelletized in order to facilitate the cell harvest. This algae pelletization via the filamentous fungi represents an innovative approach to address both the cost and sustainability issues in algae biofuel production and also has potential with direct commercial applications. This paper reviews the current research status in this area and some possible drawbacks of this method in order to provide some possible directions for the future research.

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“…Coagulation efficiency of metal ions increases with increasing ionic charge. Multivalent metal salts such as alum have been widely used to flocculate algal biomass in wastewater treatment processes (McGarry, 1970;Dodd, 1979;Benemann et al, 1980;Moraine et al, 1980;Koopman and Lincoln, 1983;Lincoln, 1985). Alum is an effective flocculant for Scenedesmus and Chlorella (Golueke and Oswald, 1965); however, flocculation by metal salts may be unacceptable if biomass is to be used in certain aquaculture and other applications.…”

Section: Flocculationmentioning

confidence: 99%

Recovery of microalgal biomass and metabolites: process options and economics

Grima

Belarbi

Fernández

et al. 2003

Biotechnology Advances

1,911

705

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Commercial production of intracellular microalgal metabolites requires the following: (1) largescale monoseptic production of the appropriate microalgal biomass; (2) recovery of the biomass from a relatively dilute broth; (3) extraction of the metabolite from the biomass; and (4) purification of the crude extract. This review examines the options available for recovery of the biomass and the intracellular metabolites from the biomass. Economics of monoseptic production of microalgae in photobioreactors and the downstream recovery of metabolites are discussed using eicosapentaenoic acid (EPA) recovery as a representative case study. D

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Autoflotation harvesting of algae from high-rate pond effluents

Cited by 38 publications

References 1 publication

Microalgae removal from Ghrib Dam (Ain Defla, Algeria) water by electroflotation using stainless steel electrodes

Microalgae removal from Ghrib Dam (Ain Defla, Algeria) water by electroflotation using stainless steel electrodes

Review of Microalgae Harvesting via Co-Pelletization with Filamentous Fungus

Recovery of microalgal biomass and metabolites: process options and economics

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