scholarly journals Biosorption of mercury (II) from aqueous solution onto biomass of Aspergillus niger

2018 ◽  
Vol 3 (3) ◽  
pp. 15-25
Author(s):  
Ismael Acosta Rodríguez ◽  
Nancy Cecilia Pacheco-Castillo ◽  
Juan Fernando Cárdenas-González ◽  
Maria de Guadalupe Moctezuma Zarate ◽  
Víctor Manuel Martínez-Juárez ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Fungal Biomass ◽  
Industrial Wastewater ◽  
Absorption Spectrometry ◽  
Effect Of Temperature ◽  
Contaminated Water ◽  
Spectrometry Method ◽  
Removal Capacity

Mercury (II) removal capacity in aqueous solution by Aspergillus niger biomass was analyzed by the atomic absorption spectrometry method. The fungus grew in 2000 ppm of the metal (20.3%). Biosorption was evaluated at different pH (3.5, 4.5, and 5.5) at different times. In addition, the effect of temperature in the range of 28°C to 45oC and removal at different initial concentrations of Hg (II) from 100 to 500 mg/L were also studied. The highest biosorption (83.2% with 100 mg/L of the metal, and 1 g of biomass) was 24 h at pH of 5.5 and 28oC. With regard to temperature, the highest removal was to 28oC, with an 83.2% removal at 24 h, and at higher biomass concentrations, the removal was most efficient (100% in 12 h with 5 g of biomass). Fungal biomass showed good removal capacity of the metal in situ, 69% removal in contaminated water, after 7 days of incubation and 5 g of biomass (100 mL water), so it can be used to remove industrial wastewater.

scholarly journals Bioremoval of Cobalt(II) from Aqueous Solution by Three Different and Resistant Fungal Biomasses

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Juan F. Cárdenas González ◽  
Adriana S. Rodríguez Pérez ◽  
Juan M. Vargas Morales ◽  
Víctor M. Martínez Juárez ◽  
Ismael Acosta Rodríguez ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Fungal Biomass ◽  
Contaminated Water ◽  
Removal Capacity ◽  
Optimum Ph

The biosorption of Co(II) on three fungal biomasses: Paecilomyces sp., Penicillium sp., and Aspergillus niger, was studied in this work. The fungal biomass of Paecilomyces sp. showed the best results, since it removes 93% at 24 h of incubation, while the biomasses of Penicillium sp. and Aspergillus niger are less efficient, since they remove the metal 77.5% and 70%, respectively, in the same time of incubation, with an optimum pH of removal for the three analyzed biomasses of 5.0 ± 0.2 at 28°C. Regarding the temperature of incubation, the most efficient biomass was that of Paecilomyces sp., since it removes 100%, at 50°C, while the biomasses of Penicillium sp. and Aspergillus niger remove 97.1% and 94.1%, at the same temperature, in 24 hours of incubation. On the contrary, if the concentration of the metal is increased, the removal capacity for the three analyzed biomasses decreases; if the concentration of the bioadsorbent is increased, the removal of the metal also increases. It was observed that, after 4 and 7 days of incubation, 100%, 100%, and 96.4% of Co(II) present in naturally contaminated water were removed, respectively.

scholarly journals Removal of Cobalt (II) from Waters Contaminated by the Biomass of Eichhornia crassipes

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1725
Author(s):  
Ismael Acosta-Rodríguez ◽  
Adriana Rodríguez-Pérez ◽  
Nancy Cecilia Pacheco-Castillo ◽  
Erika Enríquez-Domínguez ◽  
Juan Fernando Cárdenas-González ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Eichhornia Crassipes ◽  
Methyl Isobutyl Ketone ◽  
Colorimetric Method ◽  
Effect Of Temperature ◽  
Contaminated Water ◽  
Isobutyl Ketone ◽  
Removal Capacity

Due to the increase in contamination of aquatic niches by different heavy metals, different technologies have been studied to eliminate these pollutants from contaminated aquatic sources. So the objective of this work was to determine the removal of cobalt (II) in aqueous solution by the biomass of the aquatic lily or water hyacinth (Eichhornia crassipes) which, is one of the main weeds present in fresh water, due to its rapid reproduction, growth, and high competitiveness, by the colorimetric method of the methyl isobutyl ketone. The removal was evaluated at different pHs (4.0–8.0) for 28 h. The effect of temperature in the range from 20 °C to 50 °C and the removal at different initial concentrations of cobalt (II) of 100 to 500 mg/L was also studied. The highest bioadsorption (100 mg/L) was at 28 h, at pH 5.0 and 28 °C, with a removal capacity of 73.1%, which is like some reports in the literature. Regarding the temperature, the highest removal was at 50 °C, at 28 h, with a removal of 89%. At the metal and biomass concentrations analyzed, its removal was 82% with 400–500 mg/L, and 100% with 5 g of natural biomass at 20 h. In addition, this completely removes the metal in situ (100 mg/L in contaminated water, at 7 days of incubation, with 10 g of natural biomass in 100 mL). So, the natural biomass can be used to remove it from industrial wastewater, even if in vivo, only eliminate 17.3% in 4 weeks.

scholarly journals Removal of chromium (VI) in aqueous solution by oat biomass (Avena sativa)

2017 ◽  
Vol 2 (2) ◽  
pp. 196-205
Author(s):  
Nancy Cecilia Pacheco-Castillo ◽  
Juan Fernando Cárdenas-González ◽  
María de Guadalupe Moctezuma Zarate ◽  
Víctor Manuel Martínez-Juárez ◽  
Adriana Rodríguez-Pérez ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Avena Sativa ◽  
Industrial Wastewater ◽  
Metal Removal ◽  
Effect Of Temperature ◽  
Ph Values ◽  
Chromium Vi ◽  
Removal Capacity ◽  
Oat Biomass

Chromium (VI) removal capacity in aqueous solution by oat biomass was analyzed by the diphenylcarbazide method. Bioadsorption was evaluated at different pH values (1, 2, 3 and 4) and at different times. The effect of temperature in the range of 28 °C to 60 °C and the removal at different initial Cr (VI) concentrations of 200 to 1000 mg/L were also studied. The highest bioadsorption (100% with 100 mg/L of the metal and 1 g of biomass) was at 8 h, at pH of 1.0 and 28 °C. With regard to temperature, the highest removal was to 60 oC, with a 100% removal at 90 min. Removal was more efficient when higher concentrations of biomass were used (100%, 3 h and 5 g of biomass). Untreated biomass (washed and ground biomass) showed excellent metal removal capacity in situ, 82.6% and 85.3% removal in contaminated soil and water, respectively, after 10 days of incubation, using 25 g of the biomass (100 mL of water). These results show that Cr (VI) can be removed from industrial wastewater using oat biomass.

scholarly journals Bioremoval of Different Heavy Metals by the Resistant Fungal StrainAspergillus niger

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Ismael Acosta-Rodríguez ◽  
Juan F. Cárdenas-González ◽  
Adriana S. Rodríguez Pérez ◽  
Juana Tovar Oviedo ◽  
Víctor M. Martínez-Juárez
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Aspergillus Niger ◽  
Fungal Biomass ◽  
Dry Weight ◽  
Removal Capacity ◽  
Removal Of Heavy Metals ◽  
The Ideal

The objective of this work was to study the resistance and removal capacity of heavy metals by the fungusAspergillus niger. We analyzed the resistance to some heavy metals by dry weight and plate: the fungus grew in 2000 ppm of zinc, lead, and mercury, 1200 and 1000 ppm of arsenic (III) and (VI), 800 ppm of fluor and cobalt, and least in cadmium (400 ppm). With respect to their potential of removal of heavy metals, this removal was achieved for zinc (100%), mercury (83.2%), fluor (83%), cobalt (71.4%), fairly silver (48%), and copper (37%). The ideal conditions for the removal of 100 mg/L of the heavy metals were 28°C, pH between 4.0 and 5.5, 100 ppm of heavy metal, and 1 g of fungal biomass.

scholarly journals In-situ Surface Observation of Zn and Zn-5%Al Alloy in Aqueous Solution by Polarization Modified Infrared Reflection Absorption Spectrometry

2007 ◽  
Vol 93 (2) ◽  
pp. 156-162
Author(s):  
Katsuhiro NISHIHARA ◽  
Masamitsu MATSUMOTO ◽  
Masanari KIMOTO ◽  
Takeo KUDO ◽  
Hitoshi UCHIDA
Keyword(s):  
Aqueous Solution ◽  
Absorption Spectrometry ◽  
Al Alloy ◽  
Surface Observation ◽  
Infrared Reflection

Bioadsorption of lead(II) from aqueous solution by fungal biomass of Aspergillus niger

2001 ◽  
Vol 87 (3) ◽  
pp. 273-277 ◽  
Author(s):  
Wang Jianlong ◽  
Zhan Xinmin ◽  
Ding Decai ◽  
Zhou Ding
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Fungal Biomass

Removal of a Dye from an Aqueous Solution by the Fungus Aspergillus niger

2000 ◽  
Vol 35 (1) ◽  
pp. 95-112 ◽  
Author(s):  
Yuzhu Fu ◽  
T. Viraraghavan
Keyword(s):  
Aqueous Solution ◽  
Aspergillus Niger ◽  
Fungal Biomass ◽  
Freundlich Isotherm ◽  
Isotherm Models ◽  
Promising Alternative ◽  
Biosorption Capacity ◽  
Initial Ph ◽  
Removal Processes ◽  
Kinetics Of

Abstract Biosorption is becoming a promising alternative to replace or supplement the present dye removal processes from dye wastewater. In this study, removal of a dye, Basic Blue 9, from an aqueous solution by biosorption on the dead fungal biomass Aspergillus niger was studied. The effective pretreatment method for increasing the biosorption capacity of A. niger was investigated. Autoclaving was found to effectively enhance the biosorption capacity of A. niger to 18.54 mg/g compared with 1.17 mg/g of living cells for Basic Blue 9. Batch pH, kinetic and isotherm studies were conducted to evaluate the biosorption capacity of the pretreated (dead) biomass. The initial pH of the dye solution strongly affected the biosorption capacity and rate. The effective initial pH was between 4 and 6. The equilibrium time varied with the initial pH of the dye solution and was set at 30 h because no significant dye removals occurred after that time of contact. The Lagergren and Ho et al. models can be used to describe the kinetics of Basic Blue 9 biosorption on A. niger successfully for different initial pH values, except for pH 4. At initial pH 4, biosorption of Basic Blue 9 fitted the Langmuir equation well; at initial pH 10, the Langmuir and Freundlich isotherm models both fitted biosorption well. The results of this study indicated that fungal biomass of A. niger can be used for removing Basic Blue 9 from an aqueous solution.

Utilization of Waste of Enzymes Biomass as Biosorbent for the Removal of Dyes from Aqueous Solution in Batch and Fluidized Bed Column

2020 ◽  
Vol 71 (1) ◽  
pp. 1-12
Author(s):  
Salman H. Abbas ◽  
Younis M. Younis ◽  
Mohammed K. Hussain ◽  
Firas Hashim Kamar ◽  
Gheorghe Nechifor ◽  
...  
Keyword(s):  
Experimental Data ◽  
Aqueous Solution ◽  
Particle Size ◽  
Adsorption Capacity ◽  
Fluidized Bed ◽  
Flow Rate ◽  
Fungal Biomass ◽  
Solution Flow Rate ◽  
Maximum Adsorption Capacity ◽  
Solution Flow

The biosorption performance of both batch and liquid-solid fluidized bed operations of dead fungal biomass type (Agaricusbisporus ) for removal of methylene blue from aqueous solution was investigated. In batch system, the adsorption capacity and removal efficiency of dead fungal biomass were evaluated. In fluidized bed system, the experiments were conducted to study the effects of important parameters such as particle size (701-1400�m), initial dye concentration(10-100 mg/L), bed depth (5-15 cm) and solution flow rate (5-20 ml/min) on breakthrough curves. In batch method, the experimental data was modeled using several models (Langmuir,Freundlich, Temkin and Dubinin-Radushkviechmodels) to study equilibrium isotherms, the experimental data followed Langmuir model and the results showed that the maximum adsorption capacity obtained was (28.90, 24.15, 21.23 mg/g) at mean particle size (0.786, 0.935, 1.280 mm) respectively. In Fluidized-bed method, the results show that the total ion uptake and the overall capacity will be decreased with increasing flow rate and increased with increasing initial concentrations, bed depth and decreasing particle size.

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