Mechanisms of removing pollutants from aqueous solutions by microorganisms and their aggregates: A review

Wu, Yonghong; Li, Tianling; Yang, Linzhang

doi:10.1016/j.biortech.2011.12.088

Cited by 236 publications

(89 citation statements)

References 68 publications

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“…1A-C, green algae and filamentous cyanobacteria were the dominant community of the periphyton, likely along with associations of other bacteria, diatoms, and protozoa. Microalgae and filamentous cyanobacteria formed the base matrix, and their complex structures contained voids, channels, cavities, and pores that allow diffusion of nutrients and oxygen and facilitated P transport and adsorption inside the periphyton (Wu et al 2012. The morphological characteristics of periphyton observed in this study were generally consistent with those in paddy fields .…”

Section: Characteristics Of Periphytonsupporting

confidence: 73%

“…Periphyton is an under-water micro-floral community that attaches to substrates such as submerged plants or plant parts, rocks, and sediments (Larned, 2010). Its components include algae, bacteria, protozoa, metazoans, epiphytes associated with inorganic minerals such as Fe and Al hydroxides, and Ca/Mg carbonates (Wu et al, 2012. Periphyton can act as a potential P sink in wetlands and is also regarded as a buffer for P precipitation and release between sediments and water (Dodds, 2003;Drake et al, 2012;Lu et al, 2016a;Wu et al, 2011;Zamalloa et al, 2012).…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

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Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

Deng

Hesterberg

et al. 2017

Science of The Total Environment

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Section: Characteristics Of Periphytonsupporting

confidence: 73%

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

Deng

Hesterberg

et al. 2017

Science of The Total Environment

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“…In recent years, there is a growing research interest in utilizing algae-based technologies in wastewater treatment (Abinandan and Shanthakumar 2015;Wang et al 2016b;Wu et al 2012). Nutrients from wastewater are assimilated into algae biomass for their growth, which can be harvested and used as a biofertilizer Hwang et al 2016).…”

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

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137

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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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“…The decoloration mechanism with algaes may include adsortion, enzymatic degradation or a combination of both (7). The capacity of biosortion is attributed to its high surface area and its great affinity for bond (8,9).…”

Section: Introductionmentioning

confidence: 99%

Decoloración de aguas residuales de una industria de pinturas por la microalga Chlorella sp

et al. 2017

Rev MVZ Córdoba

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Objective. Decoloring wastewater from a paint factory making use of Chlorella sp., microalgae as a biological way of treatment. Materials and methods. Samples of this microalgae previously cultivated with nourishing fertilizer under photoperiods of light and darkness were taken to test the microalgae Chlorella sp., initial concentration effect in the bioremoval process. For this purpose, it was cultivated in 0.10, 0.20 and 0.30 units of absorbance in bioreactors with 200 mL wastewater with and without nutrients. The biotest with the best rate of colour removal was chosen and the DBO5 and DQO were marked out. The immobilized Chlorella sp., in kappa carrageenan was also tested. Results. In the tests colour decrease percentage were 81.7, 69.7 and 58.3% without nutrients in the initial concentrations of 0.10, 0.20 and 0.30 units of absorbance respectively and 72.6, 69.0 and 86.8% for 0.10, 0.20 and 0.30 units of absorbance with nutrients respectively in the day of maximum growth. The immobilized microalgae score were 72.60% and 78.36% of color removal for 0.4 and 1.6 units of absorbance respectively. The higher colour removal test score was that with nutrients at 0.30 units of absorbance with several changes in DBO5 and DQO values. Conclusion. The biological wastewater treatment making use of Chlorella sp., microalgae can be considered as an effective choice in decolorating wastewater.

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Mechanisms of removing pollutants from aqueous solutions by microorganisms and their aggregates: A review

Cited by 236 publications

References 68 publications

Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

Mechanisms of enhanced inorganic phosphorus accumulation by periphyton in paddy fields as affected by calcium and ferrous ions

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

Decoloración de aguas residuales de una industria de pinturas por la microalga Chlorella sp

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