The potential of sustainable algal biofuel production using wastewater resources

Pittman, Jon K.; Dean, Andrew P.; Osundeko, Olumayowa

doi:10.1016/j.biortech.2010.06.035

Cited by 1,306 publications

(611 citation statements)

References 77 publications

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“…[15][16][17] This study also has environmental implications in terms of interaction between various contaminants and algae as these green algae are widely present in different aquatic environments. Algae could play an important role in the degradation of some contaminants in the environment.…”

Section: Environmental Implicationsmentioning

confidence: 99%

“…11,[13][14][15][16][17][18] In this study, we aimed to further assess the capability of these four green microalgae species in the simultaneous removal of various contaminants (nitrogen, phosphorus, metals, organic compounds) in real wastewater. Estrogenic EDCs such as nonylphenol possess the ability to disrupt the endocrine systems of higher organisms by interacting with the estrogen receptor.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous removal of inorganic and organic compounds in wastewater by freshwater green microalgae

Zhou

Ying

Liu

et al. 2014

Environ. Sci.: Processes Impacts

143

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Batch experiments were carried out for 7 days to investigate the simultaneous removal of various organic and inorganic contaminants including total nitrogen (TN), total phosphorus (TP), metals, pharmaceuticals and personal care products (PPCPs), endocrine disrupting chemicals (EDCs), and estrogenic activity in wastewater by four freshwater green microalgae species, Chlamydomonas reinhardtii, Scenedesmus obliquus, Chlorella pyrenoidosa and Chlorella vulgaris. After treatment for 7 days, 76.7-92.3% of TN, and 67.5-82.2% of TP were removed by these four algae species. The removal of metals from wastewater by the four algae species varied among the metal species. These four algae species could remove most of the metals efficiently (>40% removal), but showed low efficiencies in removing Pb, Ni and Co. The four algae species were also found to be efficient in removing most of the selected organic compounds with >50% removal, and the estrogenic activity with removal efficiencies ranging from 46.2 to 81.1% from the wastewater. Therefore, algae could be harnessed to simultaneously remove various contaminants in wastewater. Environmental impactDomestic wastewater contains various inorganic and organic contaminants, which could pose risks to the environment and public health. To avoid these adverse effects, wastewater must be treated prior to its nal discharge into the receiving environment. Unfortunately, incomplete removals have oen been reported for these contaminants in wastewater by conventional wastewater treatment technologies. The use of microalgae in the treatment of wastewater has gained great interest over the past few years. However, previous studies on wastewater treatment by algae have been limited and most of them are focused on the removal of inorganic or organic pollutants in articial wastewaters. This study investigated the simultaneous removal capacity of inorganic (nitrogen, phosphorus and metals) and organic pollutants (PPCPs and EDCs) by four freshwater microalgae, and also evaluated the elimination of estrogenic activity in the wastewater by these algae species. The results demonstrated that simultaneous removal of various contaminants in wastewater was achieved, which showed potential application of these algae species in the wastewater treatment.

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Section: Environmental Implicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of inorganic and organic compounds in wastewater by freshwater green microalgae

Zhou

Ying

Liu

et al. 2014

Environ. Sci.: Processes Impacts

143

View full text Add to dashboard Cite

show abstract

“…Rev Environ Sci Biotechnol (2017) 16:717-735 719 Other than PPCPs, heavy metals, ammonium, COD, and other organic contaminants can also inhibit algae when their concentrations in wastewater are higher enough (Muñoz and Guieysse 2006;Wang et al 2016b). Resistant strains or algae-bacterial consortia in the form of biofilm can be used to mitigate the adverse effects of toxic contaminants in wastewater (Pittman et al 2011), but the tolerance of algae is limited. Therefore, wastewater with very high residues of these contaminants must be pretreated to avoid the inhibitory effects.…”

Section: Introductionmentioning

confidence: 99%

Removal of pharmaceuticals and personal care products from wastewater using algae-based technologies: a review

Wang

Liu

et al. 2017

Rev Environ Sci Biotechnol

150

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Pharmaceuticals and personal care products (PPCPs) consist of a variety of compounds extensively used for the treatment of human and animal diseases and for health or cosmetic reasons. PPCPs are considered as emerging environmental contaminants due to their ubiquitous presence in the environment and high environmental risks. In wastewater treatment plants using conventional activated sludge processes, many PPCPs cannot be efficiently removed. Therefore, there is an increasing need for more effective and cost-efficiency ways of removing PPCPs while treating wastewater. Algae-based technologies have recently attracted growing attentions for their potential application in wastewater treatment and hazardous contaminant removal, which are advantages in reducing operation cost while generating valuable products and sequestrating greenhouse gases at the same time. This work reviews the up-to date researches to reveal potential toxic effects of PPCPs on algae and algae-bacteria consortia, identify mechanisms involved in PPCP removal, and assess the fate of PPCPs in algae-based treatment systems. Current researches suggest that algae and algae-bacteria consortia have great potentials in PPCP removal but more works are required before algae-based technologies can be implemented in large scales. Knowledge gaps are identified and further research focuses are proposed in this review.

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“…Besides consumption of the fossil fuels, extensive usage is not only rapidly depleting them but is seriously causing environmental degradation, health problems and even climatic change globally. The non-renewable fossil fuels present consumption rates and increasing costs of petro-chemicals demand alternative energy resources [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Lucrative future of microalgal biofuels in Pakistan: a review

Manzoor

Tabssum

Javaid

et al. 2015

Int J Energy Environ Eng

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Pond-grown microalgae have been considered as feedstocks for production of biodiesel. Various natural habitats and man-made environments can be exploited to cultivate microalgae without utilizing arable land which is already decreasing due to urbanization and industrial development. Suitable temperature, solar illumination and availability of phosphorus and nitrogen-rich organic wastes result in algal blooms in stagnant water and river bank's associated pools in many regions including Pakistan.

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The potential of sustainable algal biofuel production using wastewater resources

Cited by 1,306 publications

References 77 publications

Simultaneous removal of inorganic and organic compounds in wastewater by freshwater green microalgae

Simultaneous removal of inorganic and organic compounds in wastewater by freshwater green microalgae

Removal of pharmaceuticals and personal care products from wastewater using algae-based technologies: a review

Lucrative future of microalgal biofuels in Pakistan: a review

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