Bioremediation of Soil Contaminated with Arsenic

Molina, Marı́a del Carmen; Bautista, Luis Fernando; Belda, Ignacio; Carmona, Manuel; Dı́az, Eduardo; Durante‐Rodríguez, Gonzalo; García-Salgado, Sara; López-Asensio, Jaime; Martínez‐Hidalgo, Pilar; Salgado, Sara García; White, James F.; González-Benítez, Natalia

doi:10.1007/978-981-13-9117-0_14

Cited by 4 publications

(2 citation statements)

References 198 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This observation is due to the fact that the resistance to high levels of heavy metals of many microorganisms can be ascribed to: (i) enzymatic activity (oxidation and reduction), and (ii) passive uptake (biosorption) which is not dependent on cellular metabolic activity [32]. These two processes can occur in a mixed culture where bacteria can carry out these processes to reduce the overall levels of heavy metals.…”

Section: Culture Characterizationmentioning

confidence: 99%

Synthesis of Biogenic Palladium Nanoparticles Using Citrobacter sp. for Application as Anode Electrocatalyst in a Microbial Fuel Cell

2020

View full text Add to dashboard Cite

Palladium (Pd) is a cheap and effective electrocatalyst that is capable of replacing platinum (Pt) in various applications. However, the problem in using chemically synthesized Pd nanoparticles (PdNPs) is that they are mostly fabricated using toxic chemicals under severe conditions. In this study, we present a more environmentally-friendly process in fabricating biogenic Pd nanoparticles (Bio-PdNPs) using Citrobacter sp. isolated from wastewater sludge. Successful fabrication of Bio-PdNPs was achieved under anaerobic conditions at pH six and a temperature of 30 °C using sodium formate (HCOONa) as an electron donor. Citrobacter sp. showed biosorption capabilities with no enzymatic contribution to Pd(II) uptake during absence of HCOONa in both live and dead cells. Citrobacter sp. live cells also displayed high enzymatic contribution to the removal of Pd(II) by biological reduction. This was confirmed by Scanning Electron Microscope (SEM), Electron Dispersive Spectroscopy (EDS), and X-ray Diffraction (XRD) characterization, which revealed the presence Bio-PdNPs deposited on the bacterial cells. The bio-PdNPs successfully enhanced the anode performance of the Microbial Fuel Cell (MFC). The MFC with the highest Bio-PdNPs loading (4 mg Bio-PdNP/cm2) achieved a maximum power density of 539.3 mW/m3 (4.01 mW/m2) and peak voltage of 328.4 mV.

show abstract

Section: Culture Characterizationmentioning

confidence: 99%

Synthesis of Biogenic Palladium Nanoparticles Using Citrobacter sp. for Application as Anode Electrocatalyst in a Microbial Fuel Cell

2020

View full text Add to dashboard Cite

show abstract

“…In addition, endophytes play an essential role in detoxification processes. Most of the studies have focused on organic pollutants, heavy metals and metalloids [267][268][269][270][271][272][273]. In relation to organic compounds, Burkholderia kururiensis and Agrobacterium rhizogenes are phenolic tolerant and degrading bacteria.…”

Section: Phytoremediationmentioning

confidence: 99%

From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems

et al. 2020

Self Cite

View full text Add to dashboard Cite

The presence of a wide variety of emerging pollutants in natural water resources is an important global water quality challenge. Pharmaceuticals and personal care products (PPCPs) are known as emerging contaminants, widely used by modern society. This objective ensures availability and sustainable management of water and sanitation for all, according to the 2030 Agenda. Wastewater treatment plants (WWTP) do not always mitigate the presence of these emerging contaminants in effluents discharged into the environment, although the removal efficiency of WWTP varies based on the techniques used. This main subject is framed within a broader environmental paradigm, such as the transition to a circular economy. The research and innovation within the WWTP will play a key role in improving the water resource management and its surrounding industrial and natural ecosystems. Even though bioremediation is a green technology, its integration into the bio-economy strategy, which improves the quality of the environment, is surprisingly rare if we compare to other corrective techniques (physical and chemical). This work carries out a bibliographic review, since the beginning of the 21st century, on the biological remediation of some PPCPs, focusing on organisms (or their by-products) used at the scale of laboratory or scale-up. PPCPs have been selected on the basics of their occurrence in water resources. The data reveal that, despite the advantages that are associated with bioremediation, it is not the first option in the case of the recovery of systems contaminated with PPCPs. The results also show that fungi and bacteria are the most frequently studied microorganisms, with the latter being more easily implanted in complex biotechnological systems (78% of bacterial manuscripts vs. 40% fungi). A total of 52 works has been published while using microalgae and only in 7% of them, these organisms were used on a large scale. Special emphasis is made on the advantages that are provided by biotechnological systems in series, as well as on the need for eco-toxicological control that is associated with any process of recovery of contaminated systems.

show abstract

Advances in the Bioremediation of Pharmaceuticals and Personal Care Products (PPCPs): Polluted Water and Soil

Porika

Ranjit

Tippani

et al. 2021

Microorganisms for Sustainability

View full text Add to dashboard Cite

Bioremediation of Soil Contaminated with Arsenic

Cited by 4 publications

References 198 publications

Synthesis of Biogenic Palladium Nanoparticles Using Citrobacter sp. for Application as Anode Electrocatalyst in a Microbial Fuel Cell

Synthesis of Biogenic Palladium Nanoparticles Using Citrobacter sp. for Application as Anode Electrocatalyst in a Microbial Fuel Cell

From Laboratory Tests to the Ecoremedial System: The Importance of Microorganisms in the Recovery of PPCPs-Disturbed Ecosystems

Advances in the Bioremediation of Pharmaceuticals and Personal Care Products (PPCPs): Polluted Water and Soil

Contact Info

Product

Resources

About