Use of calcium alginate/biochar microsphere immobilized bacteria Bacillus sp. for removal of phenol in water

Li, Jian; Jia, Yinjuan; Zhong, Jiaochan; Liu, Qinghui; Li, Han; Agranovski, Igor E.

doi:10.1016/j.envc.2022.100599

Cited by 8 publications

(3 citation statements)

References 45 publications

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“…Nevertheless, the ability of bacteria to degrade phenol varies. Bacillus cereus can degrade a concentration of 1.4 g/L for 40 hours [35] while other alginateimmobilized Pseudarthrobacter phenanthrenivorans cells degraded 1.0 g/L phenol for 192 hours [36]. Remarkably, the immobilized bacteria have higher phenol degradation compared with free bacteria [37,38 ] and immobilization in alginate beads increased the many-fold of degradation and tolerance to the toxic of phenol [39] by adaption of cell immobilized can be more resistant to higher concentrations of phenol [40].…”

Section: Discussionmentioning

confidence: 99%

Degradation of phenol by Rhodococcus pyridinivorans GM3 immobilization

Al-Defiery,

Reddy

2024

J.port.sci.res.

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One of the primary concerns of the environment is the increment of the xenobiotics levels, which are released in the natural ecosystem. Phenol has been documented as a pollutant because it has a significant role in water contamination; this will, therefore have an impact on the health of humans. Phenol degradation studies were carried out using a mineral salts medium containing various percentages (v/v) of Ca-alginate beads, polyurethane foam, agar-agar and agarose in batches of culture for 1.5 g/L phenol degradation by immobilized cells of Rhodococcus pyridinivorans GM3 during 24 hours of incubation at 32ºC, 200 rpm and pH 8.5. The results showed that a typical concentration of 3% (w/v) of the sodium alginate to form synthetic Ca-alginate beads was supporting phenol degradation which also emphasizes the structural stability of Ca-alginate beads. The concentration of 1.5 g/L phenol was completely degraded observed within 24 hours at 8% of the Ca-alginate beads immobilized cell and 10% of size cubes 0.125 cm3 of the polyurethane foam immobilized cell. Whilst, the degradation of 1.5 g/L of phenol concentration within 24 hours on both agar and agarose was 16% and 24% at cubes of size 0.125 cm3 and 1.0 cm3 respectively. However, the study of immobilization showed that Ca-alginate immobilized R. pyridinivorans GM3 was more efficient than polyurethane foam, agar and agarose.

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Section: Discussionmentioning

confidence: 99%

Degradation of phenol by Rhodococcus pyridinivorans GM3 immobilization

Al-Defiery,

Reddy

2024

J.port.sci.res.

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“…Despite advances in conventional water treatment methods, there still exist various limitations that require careful attention [ 7 , 8 , 9 ]; notable challenges include the generation of large volumes of wastewater, its costly management, high energy consumption, and environmental risks associated with the use of chemicals [ 10 , 11 ]. The susceptibility of water treatment methods to variations in water conditions has driven the search for more advanced and sustainable approaches [ 12 , 13 ]. In this context, the quest for innovative and strategic treatments has become a necessity.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Strategic Use of Sodium Alginate Polymer in the Immobilization of Microorganisms for Water Recycling

Bustos-Terrones

2024

Polymers

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In the quest for advanced and environmentally friendly solutions to address challenges in the field of wastewater treatment, the use of polymers such as sodium alginate (Na-Alg) in combination with immobilized microorganisms (IMs) stands out as a promising strategy. This study assesses the potential of Na-Alg in immobilizing microorganisms for wastewater treatment, emphasizing its effectiveness and relevance in environmental preservation through the use of IMs. Advances in IMs are examined, and the interactions between these microorganisms and Na-Alg as the immobilization support are highlighted. Additionally, models for studying the kinetic degradation of contaminants and the importance of oxygen supply to IMs are detailed. The combination of Na-Alg with IMs shows promise in the context of improving water quality, preserving ecological balance, and addressing climate change, but further research is required to overcome the identified challenges. Additional areas to explore are discussed, which are expected to contribute to the innovation of relevant systems.

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“…On the other hand, sodium alginate (SA) is also being a generally biopolymer for building an organic immobilization matrix that is non-toxic to microbes. 19 Furthermore, combining SA within polyvinyl alcohol (PVA) could increase the mechanical strength of the beads matrix. 20 Moreover, the addition of bentonite clay to the matrix also aims to increase the adsorption capacity of the beads.…”

Section: Introductionmentioning

confidence: 99%