Heavy metals removal by the microalga Scenedesmus incrassatulus in continuous cultures

Peña-Castro, Julián Mario; Martínez‐Jerónimo, Fernando; Esparza-Garcı́a, F.; Cañizares-Villanueva, Rosa Olivia

doi:10.1016/j.biortech.2003.12.005

Cited by 122 publications

(37 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Microorganisms such as bacteria (Srinath et al 2002), fungi (Bai and Abraham 2003) and algae (Aravindhan et al 2004) have been used in biosorption studies. The bacterium P. aeruginosa (Kang et al 2006) fungus Mucor hiemalis (Tewari et al 2005), yeast Pichia guilliermondi (Kaszycki et al 2004) and microalgae Scenedesmus incrassatulus (Pena-Castro et al 2004) are a few examples of organisms whose metal-binding capacities have been demonstrated. As biosorption of metals using living biomass is timeconsuming and it is expensive to find appropriate biomass, research interest turned to the use of dead microbial biomass and other biomaterials which are of low cost and are abundant.…”

Section: Bacterial Cr(vi) Resistancementioning

confidence: 99%

Remediation of chromium contaminants using bacteria

Kanmani¹,

Aravind²,

Preston

2011

Int. J. Environ. Sci. Technol.

123

View full text Add to dashboard Cite

Chromium contaminants emanating from industrial activities pose a significant threat to human's wellbeing. Chromium (III) and Chromium (VI) are the forms in which they are commonly encountered, of which the trivalent form is relatively benign. Hence, biological reduction of hexavalent chromium has been widely explored by researchers, yielding fruitful outcomes, opening up exciting avenues and also throwing up new challenges. This article attempts to review this area of research. Microbes, especially bacteria capable of Chromium (VI) reduction, belonging to a heterogeneous group have been isolated from contaminated sites. They exhibit plasmid-mediated chromate resistance and the reduction is enzymatically mediated. Reduction studies have been carried out with free and immobilized enzymes as well as whole cells. Experiments have been carried out in specifically designed bioreactors operated in batch and continuous modes. Although significant progress has been made, much needs to be done for its successful in situ application as the organism may not withstand the Chromium concentration or may be impeded by the presence of other toxicants. With molecular engineering, it may be possible to derive strains with improved performance even under stressful field conditions.

show abstract

Section: Bacterial Cr(vi) Resistancementioning

confidence: 99%

Remediation of chromium contaminants using bacteria

Kanmani¹,

Aravind²,

Preston

2011

Int. J. Environ. Sci. Technol.

123

View full text Add to dashboard Cite

show abstract

“…As an important group of these various chemical substances, heavy metals may be deposited into all ecosystems (Mutlak et al, 1979). The disturbance of aquatic ecosystems provoked by heavy metals pollution from industrial and domestic sources, has as consequence the loss of biological diversity, as well as increased bioaccumulation and magnification of toxicants in the food chain (Pena-Castro et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Toxicological Response of the Green Alga Chlorella vulgaris, to Some Heavy Metals

Afkar¹

2010

American Journal of Environmental Sciences

View full text Add to dashboard Cite

Problems statement:The disturbance of aquatic ecosystems provoked by heavy metals pollution from industrial and domestic sources, has as consequence the loss of biological diversity, as well as increased bioaccumulation and magnification of toxicants in the food chain. The aim of this study was to evaluate the effect of some heavy metals on some physiological activities of Chlorella vulgaris beyerinck with special references to metal bioaccumulation. Approach: Chlorella vulgaris Beyerinck was isolated from Al-Asfar Lake, Al-Hassa, Saudi Arabia. A standard initial inoculum of the isolated algae was inoculated to culture flasks. The culture flasks were supplied with various concentrations of Cobalt, Copper and Zinc ranging from 10 −6 -10 −9 M. At the end of the incubation period cultures were filtered and washed several times by distilled water for measurements the various experimental parameters. Results: The data show that the lower doses of the three tested metals had stimulatory effect in biomass yield of Chlorella vulgaris, whereas the higher doses were inhibitory depending on the type of the metal. The inhibitory effect of copper to the growth parameters of Chlorella vulgaris was more pronounced than other two tested metals. The total protein content, total carbohydrate and the total free amino acids of the tested green alga Chlorella vulgaris gradually decreased in a manner dependent on the metal concentration in the medium. On the other hand, bioaccumulation of cobalt, copper and zinc by Chlorella vulgaris cells were parallel to increasing the concentrations in the culture medium. Conclusion: The inhibitory and stimulatory effects of either of the used heavy metals depend on concentration. Different organisms, however, have different sensitivities to the same metal and the same organisms may be more or less damaged by different metals. The uptake of an element from the surrounding medium is seldom exactly proportional to the amount present in the water.

show abstract

“…However, the efficiency of elements removals are varies with the microalgae concentration. In terms of pH, pH value at 8.0 is the most suitable range for optimum performance of microalgae [11], in order to promote bivalent metal precipitation. The results for removal of Zinc (Zn) are increased in time and the highest removal percentage is at concentration no.4 for both sampling time i.e.…”

Section: International Integrated Engineering Summit 2014mentioning

confidence: 99%

Application of Phycoremediation Using Microalgae Scenedesmus sp. as Wastewater Treatment in Removal of Heavy Metals from Food Stall Wastewater

Latiffi

Mohamed

Apandi

et al. 2015

AMM

View full text Add to dashboard Cite

-This paper represents the results of using phycoremediation technology in treating the wastewater produced from food stall activity by using microalgae of Scenedesmus sp. in removal of heavy metals. Phycoremediation has advantages over physic-chemical approaches as it is can completely degrade organic pollutants without destroy the surrounding flora and fauna. Aim of this study is to determine the effectiveness of microalgae Scenedesmus sp to assimilate the pollutant load based on the optimum time and concentration. Characteristics of food stall wastewater need to be identified and analyse before phycoremediation process taken place. The wastewater sampling was collected at food stall during peak time i.e. at 8 a.m. and 4 p.m. Microalgae Scenedesmus sp. to be injected to the batch reactor based on five (5) different concentration cells. The results shows that the optimum removal of heavy metals are dominant by concentration no. 1 (C1) compare to other concentration in the treatment i.e. removal of Ferum by 88.22% and 69.63%, Copper by 60% and 53.85% at both sampling time while removal of zinc is dominant by concentration no.4 (C4) by 75.61% and 76.63% respectively.

show abstract

Heavy metals removal by the microalga Scenedesmus incrassatulus in continuous cultures

Cited by 122 publications

References 12 publications

Remediation of chromium contaminants using bacteria

Remediation of chromium contaminants using bacteria

Toxicological Response of the Green Alga <i>Chlorella vulgaris</i>, to Some Heavy Metals

Application of Phycoremediation Using Microalgae <i>Scenedesmus s</i><i>p. </i>as Wastewater Treatment in Removal of Heavy Metals from Food Stall Wastewater

Contact Info

Product

Resources

About