Removal of phenol from aqueous solution using acid-modified Pseudomonas putida-sepiolite/ZIF-8 bio-nanocomposites

Dong, Ruifang; Chen, Dongyun; Li, Najun; Xu, Qingfeng; Li, Hua; He, Jinghui; Lu, Jianmei

doi:10.1016/j.chemosphere.2019.124708

Cited by 39 publications

(11 citation statements)

References 38 publications

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“…Phenol, as a major component present in the effluents from several industries (oil refineries, coking plants, steel industries, etc. ), has been reported to be very harmful to the aquatic ecosystem [6,7]. The saline water in the Port of Gotherburg, located on the west coast of Sweden, was contaminated by a chemical spill of hundreds of tons of phenol in 1973 [8].…”

Section: Introductionmentioning

confidence: 99%

Phenol Degradation Kinetics by Free and Immobilized Pseudomonas putida BCRC 14365 in Batch and Continuous-Flow Bioreactors

Lin

Cheng

2020

Processes

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Phenol degradation by Pseudomonas putida BCRC 14365 was investigated at 30 °C and a pH of 5.0–9.0 in the batch tests. Experimental results for both free and immobilized cells demonstrated that a maximum phenol degradation rate occurred at an initial pH of 7. The peak value of phenol degradation rates by the free and immobilized cells were 2.84 and 2.64 mg/L-h, respectively. Considering the culture at 20 °C, there was a lag period of approximately 44 h prior to the start of the phenol degradation for both free and immobilized cells. At the temperatures ranging from 25 to 40 °C, the immobilized cells had a higher rate of phenol degradation compared to the free cells. Moreover, the removal efficiencies of phenol degradation at the final stage were 59.3–92% and 87.5–92%, for the free and immobilized cells, respectively. The optimal temperature was 30 °C for free and immobilized cells. In the batch experiments with various initial phenol concentrations of 68.3–563.4 mg/L, the lag phase was practically negligible, and a logarithmic growth phase of a particular duration was observed from the beginning of the culture. The specific growth rate (μ) in the exponential growth phase was 0.085–0.192 h−1 at various initial phenol concentrations between 68.3 and 563.4 mg/L. Comparing experimental data with the Haldane kinetics, the biokinetic parameters, namely, maximum specific growth rate (μmax), the phenol half-saturation constant (Ks) and the phenol inhibition constant (KI), were determined to equal 0.31 h−1, 26.2 mg/L and 255.0 mg/L, respectively. The growth yield and decay coefficient of P. putida cells were 0.592 ± 4.995 × 10−3 mg cell/mg phenol and 5.70 × 10−2 ± 1.122 × 10−3 day−1, respectively. A completely mixed and continuous-flow bioreactor with immobilized cells was set up to conduct the verification of the kinetic model system. The removal efficiency for phenol in the continuous-flow bioreactor was approximately 97.7% at a steady-state condition. The experimental and simulated methodology used in this work can be applied, in the design of an immobilized cell process, by various industries for phenol-containing wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Phenol Degradation Kinetics by Free and Immobilized Pseudomonas putida BCRC 14365 in Batch and Continuous-Flow Bioreactors

Lin

Cheng

2020

Processes

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“…In recent years, with the rapid development and progress of urbanization and industrialization, the pollution of various organic substances has been inevitable, which has caused serious threats to the environment, ecology and human health. [1,2] Phenol is a phenolic organic compound which is widely used in petroleum, fine chemical, pharmaceutical and other industries. However, it is also a highly toxic and carcinogenic substance with a strong pungent smell simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…The common methods to remove phenol include physical adsorption, biodegradation, chemical precipitation and so on. [1,6] Catalytic hydrogenation technology of phenol has been widely studied owing to many advantages such as environmentally-friendly and high economic benefits. [7] The catalytic hydrogenation of phenol to cyclohexanol and cyclohexanone as target products is one of the most crucial reactions in industrial production and environmental protection.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is also a highly toxic and carcinogenic substance with a strong pungent smell simultaneously. The United States Environmental Protection Agency (USEPA) stipulates that the permissible concentration of phenol in sewage is no more than 0.1 mg/L, proving that it is a serious pollutant in sewage treatment [1,3–5] . Apparently, finding an effective method for removing phenol is of great significance for improving water resources and reducing organic pollution.…”

Section: Introductionmentioning

confidence: 99%

“…The common methods to remove phenol include physical adsorption, biodegradation, chemical precipitation and so on [1,6] . Catalytic hydrogenation technology of phenol has been widely studied owing to many advantages such as environmentally‐friendly and high economic benefits [7] .…”

Section: Introductionmentioning

confidence: 99%

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Highly Selective Hydrogenation of Phenol Catalyzed by Porous BN Supported Ni−Pd Catalysts

Zhang

Fang

et al. 2021

ChemistrySelect

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Phenol, as a phenolic organic substance, is widely present in industrial wastewater and is an important organic pollutant. Porous boron nitride (p-BN) is an ideal material as catalyst support because it has a large specific surface area and a variety of pore structures. In this paper, a series of NiÀ Pd/p-BN catalysts were prepared by precipitation method. Meanwhile, the catalytic performance of the catalysts for the hydrogenation of phenol to cyclohexanol was systematical and comprehensive studied. Significantly, with the optimal catalyst, the conversion of phenol was greatly improved to reach more than 99.9 %, and the selectivity of cyclohexanol could almost exceed 99.8 %. In addition, the NiÀ Pd/p-BN catalyst can be reused as an effective catalyst for numerous cycles, indicating superior reusability and recyclability. After five cycles, the conversion of phenol and the selectivity of cyclohexanol is only reduced to ∼ 80 %. This catalyst will be a promising material in the field of industrial catalysis applications.

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Magnetically recyclable sepiolite/iron oxide/cupric oxide nanocomposite as a novel catalyst for the synthesis of S‐aryl dithiocarbamates by CS bond formation

Bagheri

Khabazzadeh

Fayazi

2021

J Chinese Chemical Soc

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A convenient and efficient procedure is described for the synthesis of S-aryl dithiocarbamates by C S bond formation through the coupling reaction of three components between secondary amines, carbon disulfide, and aryl iodides using magnetically separable and reusable sepiolite/iron oxide/cupric oxide (SEP/Fe 3 O 4 /CuO) nanocomposite as a heterogeneous catalyst. The results show that (SEP/Fe 3 O 4 /CuO) nanocomposite has good activity, and could be easily separated from the reaction mixture using an external magnet.The high efficiency of the nanocomposite was related to the temperature of 100 С and dimethylformamide (DMF) as a solvent. The structure, morphology, and crystalline phases of the prepared (SEP/Fe 3 O 4 /CuO) nanocomposite were characterized by Fourier transform infrared spectroscopy (FT-IR), vibratingsample magnetometer (VSM), scanning electron microscopy (SEM), inductively coupled plasma (ICP), and X-ray powder diffraction (XRD).

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Removal of phenol from aqueous solution using acid-modified Pseudomonas putida-sepiolite/ZIF-8 bio-nanocomposites

Cited by 39 publications

References 38 publications

Phenol Degradation Kinetics by Free and Immobilized Pseudomonas putida BCRC 14365 in Batch and Continuous-Flow Bioreactors

Phenol Degradation Kinetics by Free and Immobilized Pseudomonas putida BCRC 14365 in Batch and Continuous-Flow Bioreactors

Highly Selective Hydrogenation of Phenol Catalyzed by Porous BN Supported Ni−Pd Catalysts

Magnetically recyclable sepiolite/iron oxide/cupric oxide nanocomposite as a novel catalyst for the synthesis of S‐aryl dithiocarbamates by CS bond formation

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