Microalgae and Wastewater Treatment

Hammouda, Ola; Gaber, A.; Abdel-Raouf, Neveen

doi:10.1006/eesa.1995.1064

Cited by 153 publications

(78 citation statements)

References 62 publications

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“…Thus, Cr(VI) may be absorbed by bacteria at a much lower degree than Cr(III). The above mentioned is in good agreement with literature data according to which there is a significant difference in the efficiency of absorption in each species of microorganisms, since the sorption depends on the nature and the composition of the cell wall [25]. On the other hand, gram-positive bacteria have greater sorptive capacity due to their thicker layer of peptidoglycan, which contains numerous sorptive sites [26].…”

Section: Resultssupporting

confidence: 90%

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Gelagutashvili¹

2013

OJMetal

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Biosorption of Cd(II), Ag(I) and Au(III) by cyanobacteria Spirulina platensis, of Au(II)-by Streptomyces spp. 19H, and of Cr(VI) and Cr(III)-by Arthrobacter species was studied by using the dialysis and atomic absorption analysis under various conditions. In particular, the impact of the following parameters on biosorption was studied: pH (for Ag, Cd, Au), living and non-living cells (for Cr), heavy metal valence (for Cr), homogenized and non-homogenized cells (for Au), Zn(II) ions (on Cr(VI)-Arthrobacter species). It was shown that biosorption efficiency of Cr(III), Cr(VI), Cd(II), Au(III) and Ag(I) ions is likely to depend on the type of bacteria used as well as on the conditions under which the uptake processes proceeded. It was shown that metal removal by microorganisms was influenced by physicalchemical parameters. The pH value of 7.0 was optimum for the removal of Ag(I) and Cd(II) by Spirulina platensis. At a low pH value of 5.5, Au (III) was by test algae more efficiently than Cd(II) and Ag(I).

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Section: Resultssupporting

confidence: 90%

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Gelagutashvili¹

2013

OJMetal

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“…They are designed to meet specific treatment and wastewater specifications, and may simultaneously solve environmental and sanitary problems along with economic feasibility [1,2]. A renewed interest has also been experienced by high rate microalgal ponds for treatment of wastewater -where photosynthetic microalgae supply oxygen to heterotrophic bacteria, and where wastewater-borne nutrients are converted into biomass protein [2,3]. Therefore, microalga culturing is likely to play an increasingly important role in aquatic food production modules, specifically to produce (or be used as) feed for fish, convert CO 2 to O 2 and remediate water quality.…”

Section: Introductionmentioning

confidence: 99%

Nutritional Value and Uses of Microalgae in Aquaculture

Guedes¹,

Malcata²

2012

Aquaculture

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“…and Scenedesmus sp. in a pilot-scale 16 m 2 open pond could remove 90% of the COD of an urban wastewater (from 180 to less than 20 mgO 2 /L, [21]). More recently, microalgae have been shown to grow on different carbon substrates in wastewater open ponds, from simple molecules (glucose, lactose) up to quite complex ones (α-cyclodextrin, Tween 40 and 80) [22].…”

Section: Urban Wastewater Treatmentmentioning

confidence: 99%

The Environmental Biorefinery: Using Microalgae to Remediate Wastewater, a Win-Win Paradigm

et al. 2016

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Abstract:Microalgae have been shown to be a source of multiple bio-based products ranging from high value molecules to commodities. Along with their potential to produce a large variety of products, microalgae can also be used for the depollution of wastewaters of different origins (urban, industrial, and agricultural). This paper is focused on the importance of harnessing the bioremediation capacity of microalgae to treat wastewaters in order to develop the microalgae industry (especially the microalgae biofuel industry) and to find other alternatives to the classic wastewater treatment processes. The current research on the potential of microalgae to treat a specific wastewater or a targeted pollutant is reviewed and discussed. Then, both strategies of selecting the best microalgae strain to treat a specific wastewater or pollutant and using a natural or an artificial consortium to perform the treatment will be detailed. The process options for treating wastewaters using microalgae will be discussed up to the final valorization of the biomass. The last part is dedicated to the challenges which research need to address in order to develop the potential of microalgae to treat wastewaters.

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Microalgae and Wastewater Treatment

Cited by 153 publications

References 62 publications

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Nutritional Value and Uses of Microalgae in Aquaculture

The Environmental Biorefinery: Using Microalgae to Remediate Wastewater, a Win-Win Paradigm

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