Experimental research on Phanerochaete chrysosporium as coal microbial flocculant

Zhang, Dongchen; Hou, Zhenting; Li, Yong; Wang, Tao

doi:10.1016/j.ijmst.2013.07.009

Cited by 22 publications

(10 citation statements)

References 5 publications

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“…Stretching mode observed at 1628 cm −1 indicated the presence of C = O in an amide group and the frequency at 1409 cm −1 was the result of COO − symmetrical vibration (Zhang et al 2013). The vibration band between 1000 and 1100 cm −1 suggested the presence of saccharide derivatives.…”

Section: Functional Group Analysis Of Crude Bioflocculantmentioning

confidence: 96%

Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

Nurul-Adela

Nasrin

Loh

2016

Bioresour. Bioprocess.

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Background: Palm oil mill effluent (POME) generated from the palm oil milling process contains high organic matter from which the molecule of interest for bioconversion such as fermentable sugar can be derived. This study examined the enzymatic hydrolysis of complex celluloses and polysaccharides present in POME with the aim to release the simple sugars as low-cost fermentable feedstock convertible into bioflocculant. Results:The maximum concentration of fermentable sugar produced after 24 h of hydrolysis was 30.5 g/L. The POME hydrolysate served as a carbon source for Bacillus marisflavi NA8 to produce bioflocculant. The optimum conditions obtained were an initial pH of 7.0 and a temperature of 37 °C with an inoculum size of 5 % (v/v), yielding 6.4 g/L or 32 kg/t bioflocculant from POME. Conclusion:This finding indicated that POME could be utilized as a low-cost substrate to improve the feasibility of commercial production of bioflocculant.

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Section: Functional Group Analysis Of Crude Bioflocculantmentioning

confidence: 96%

Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

Nurul-Adela

Nasrin

Loh

2016

Bioresour. Bioprocess.

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“…V3a, found that it was higher than 80% in the pH range of 3-11, with the highest flocculation (97%) at pH 7.0. The optimum initial pH of the growth medium aiming at the best bioflocculant activities of Bacillus xn12 and Streptomyces xn17 (97% for both) was observed at pH 5.0 (Dongchen et al, 2013). On the other hand, Okaiyeto et al (2015), using a strain of B. toyonensis from sediment of Algoa Bay of the Eastern Cape Province (South Africa), found a best bioflocculant production under acidic conditions, especially at pH 5.0.…”

Section: Similarlymentioning

confidence: 99%

“…Gomaa (2012), studying the bioflocculant produced by Pseudomonas aeruginosa, observed the presence of carboxyl, hydroxyl, amino and sugar groups, characteristics of exopolymers. Dongchen et al (2013) and Kavita et al (2013), investigating the FTIR spectra of flocculants produced by isolates of the fungus Phanerochaete chrysosporium and the bacteria Vibrio campbellii, observed groups characteristic of polysaccharides.…”

Section: Characterization Of Produced Biosurfactantmentioning

confidence: 99%

OPTIMIZATION OF BIOFLOCCULANT PRODUCTION BY Bacillus spp. FROM SUGARCANE CROP SOIL OR FROM SLUDGE OF THE AGROINDUSTRIAL EFFLUENT

Gouveia

Silva

Santos

et al. 2019

Braz. J. Chem. Eng.

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Biological flocculants are advantageous due to their biodegradability and safety to living beings. In this work, four bacterial strains, isolated from sugarcane cropped soil (Bacillus megaterium LBPMA-APFSG3Isox and B. toyonensis LBPMA-ACOPR1.Isox) and sludge of an agroindustrial effluent (B. pumilus LBPMA-BLD07 and B. thuringiensis LBPMA-EFIII), were studied. It was found that all of them secreted bioflocculants, at 37 ± 1 °C, with no pH changes over time and the flocculant activity increased during the time course of incubation. These results stimulated the optimization of the culture conditions to improve flocculation rates, such as the pH, nitrogen sources and carbon. For B. toyonensis LBPMA-ACOPR1.Isox and B. thuringiensis LBPMA-EFIII, the best pH for the bioflocculant production was 5.0. Sucrose and maltose were the best sources of carbon, while urea was the preferred source of nitrogen for two of the tested isolates (B. pumilus LBPMA-BLD07 and B. toyonensis LBPMA-ACOPR1.Isox), followed by (NH 4)2SO 4 (B. megaterium LBPMA-APFSG3Isox) and peptone (B. thuringiensis LBPMA-EFIII). The FTIR-ATR spectra of each extracted material responsible for the flocculant activities of the strains displayed carboxyl, hydroxyl and methoxy functional groups characteristic of polysaccharides.

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“…In the experiment, the original Phanerochaete chrysosporium domestication and breeding of Phanerochaete chrysosporium was used as flocculant-producing bacteria. The experiment showed that the original Phanerochaete chrysosporium under the experimental conditions the maximum flocculation rate was 93.5%, flocculation acclimation Phanerochaete chrysosporium rate can reach the maximum of 88.68%, and UV mutagenesis and chemical mutagenesis ball Phanerochaete chrysosporium's highest flocculating rate reached 95.08% and 95.04%, respectively [32,82]. The study also showed that the domestication breeding was helpful to improve the stability of the flocculation coal slurry [83][84][85].…”

Section: Coal Slurrymentioning

confidence: 87%

“…Different microbial flocculants have different sensitivity to pH value [30,31]. Microbial flocculant can only show the flocculation activity in a certain range of pH value [32,33]. When the change of pH of the reaction system exceeds this range, it will not only change the state of the charged state and the ability to neutralize the charge, but also change the surface properties of the particles [34].…”

Section: Effect Of Ph Value On Production Of Microbial Flocculantsmentioning

confidence: 99%

Preparation, Performances, and Mechanisms of Microbial Flocculants for Wastewater Treatment

et al. 2020

IJERPH

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In recent years, close attention has been paid to microbial flocculants because of their advantages, including safety to humans, environmental friendliness, and acceptable removal performances. In this review, the preparation methods of microbial flocculants were first reviewed. Then, the performances of bioflocculants in the removal of suspended solids, heavy metals, and other organic pollutants from various types of wastewater were described and commented, and the removal mechanisms, including adsorption bridging, charge neutralization, chemical reactions, and charge neutrality, were also discussed. The future research needs on microbial flocculants were also proposed. This review would lead to a better understanding of current status, challenges, and corresponding strategies on microbial flocculants and bioflocculation in wastewater treatment.

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Experimental research on Phanerochaete chrysosporium as coal microbial flocculant

Cited by 22 publications

References 5 publications

Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

OPTIMIZATION OF BIOFLOCCULANT PRODUCTION BY Bacillus spp. FROM SUGARCANE CROP SOIL OR FROM SLUDGE OF THE AGROINDUSTRIAL EFFLUENT

Preparation, Performances, and Mechanisms of Microbial Flocculants for Wastewater Treatment

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