Adsorption of pyrimethamine from wastewater using activated carbons prepared from <i>Daniellia-oliveri</i> sawdust

Giwa, Abdur-Rahim Adebisi; Adesokan, Saheed Ademola; Bello, Isah Adewale

doi:10.1080/03067319.2021.1884858

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…The primary cause of the differential in CDDO-BC has been identified as the lignin cellulosic content of Daniellia oliveri. 32,59 The carbon content of the derived biochar is also consistent with the synergistic impact of mixing Daniellia oliveri with cow dung. Table 3 also provides the prediction for CD-BC, which predominates inorganic components.…”

Section: Energy Dispersive Spectroscopysupporting

confidence: 59%

“…The CDDO‐BC was discovered to have the most significant carbon content, at 67.80%. The primary cause of the differential in CDDO‐BC has been identified as the lignin cellulosic content of Daniellia oliveri 32,59 . The carbon content of the derived biochar is also consistent with the synergistic impact of mixing Daniellia oliveri with cow dung.…”

Section: Discussion Of Resultsmentioning

confidence: 60%

“…Consequently, compared with the unaltered waste lubricant oil contaminated soils, the introduction of Daniellia oliveri biochar enhanced the soil pH and organic carbon, which subsequently enabled the growth of cowpea seeds. According to Giwa et al ., 32 their research was primarily concerned with using the Daniellia oliveri leaves as a starting point to create biochar for the adsorption of pyrimethamine from aqueous media. Their investigation showed that biochar made from Daniellia oliveri leaves was a good choice for the procedure.…”

Section: Introductionmentioning

confidence: 99%

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Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Adeniyi

Iwuozor

Emenike

2022

Biofuels Bioprod Bioref

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African balsam (Daniella oliveri) leaves and cow dung are waste materials that are commonly accessible in Africa and can be used to produce biochar by simultaneous thermochemical processing. In this study, biochar was produced in a retort‐heated, non‐electrically powered, top‐lit updraft reactor using the biomass fuel‐powered thermochemical conversion of dried cow dung and African balsam leaves at an average temperature of 320 °C. The biochar was characterized using Fourier transform infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), differential thermal analysis/thermogravimetric analysis (DTA/TGA), and Brunauer–Emmett–Teller (BET) analyses. After carbonization for 100 min, biochar was obtained from processed mixed leaves/cow dung with a yield of 70%. Fourier transform infrared analysis showed the presence of alkene, hydroxyl, alkyne, alkane, and sulfur‐containing functional groups. Scanning electron micrographs showed that the biochar's surface was made up of fibrillated particles with very few pores. The biochar was observed to have a surface area of 328.199 m2/g with a higher pore volume and lower pore size than biochar produced from cow dung alone. Energy dispersive spectroscopy showed that the biochar is mostly made up of carbon (67%), and that the introduction of the leaves into the biochar feedstock increased its carbon, silicon, potassium, and bromine content. Differential thermal analysis/thermogravimetric analyses revealed the biochar to be thermally stable. The findings of this study are helpful for attempts to manage solid wastes (African balsam leaves and cow dung), reduce environmental pollution, and produce biochar whose properties are adequate for it to be used as a soil additive. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Energy Dispersive Spectroscopysupporting

confidence: 59%

Section: Discussion Of Resultsmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Adeniyi

Iwuozor

Emenike

2022

Biofuels Bioprod Bioref

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“…The sample was dried in an oven at 70 • C for 72 hours; then ground and stored as Raw Daniellia Sawdust (RDS). The method was described elsewhere [29], 3g of RDS was mixed with 3 mL of 1 M H 3 PO 4 and 3 mL of 1 M ZnCl 2 each in separate crucibles. These were subjected to the furnace at 800 • C (carbonization and activation in self-generated atmosphere) for 5 minutes.…”

Section: Preparation Of Adsorbentsmentioning

confidence: 99%

Removal of Trimethoprim from Water using Carbonized Wood Waste as Adsorbents

Adesokan

Giwa

Bello

2021

J. Nig. Soc. Phys. Sci.

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Daniellia—oliveri sawdust-based adsorbents were employed to remove trimethoprim (TMP) from water. The sawdust was thermally carbonized and activated in-stu with ZnCl2 and H3PO4 separately. The adsorbents surface features were profiled using scanning electron microscopic (SEM) and pH point of zero charge (pHpzc ) analyses. The prospects of the adsorbents for the removal of trimethoprim from water were verified. The adsorption processes were performed under different experimental conditions. The adsorption isotherm, the kinetics, and the thermodynamics were studied; and the data fitting output revealed that both chemisorptions and physisorption occurred. Surface and pore diffusion played active role in the adsorption of TMP by the adsorbents. The optimum conditions for adsorption of TMP by the adsorbents were pH at slightly acidic to neutral medium and temperature at room temperature. The fitting isotherm models were: Langmuir (R2 = 0.993) for the zinc-chloride-activated-carbon, Temkin (R2 = 0.962) for the phosphoric-acid-activated-carbon, and the kinetics: pseudo-second order (R2 = 0.997) for both. The maximum monolayer adsorption capacities of the adsorbents for TMP was 4.115 and 6.495 mg/g, respectively. The thermodynamic parameters determined suggested feasibility, spontaneity, and endothermicity of the adsorption processes. The results reveal that the adsorbents were goodprospects for the removal of TMP from water.

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An overview of forest residues as promising low-cost adsorbents

et al. 2022

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Anthropogenic activities have severely affected biogeochemical cycles on a global scale, resulting in a drastic increase in environmental problems, intensified by wastewater generation containing high levels of pollutants. As it is known that water is precious yet limited, viable wastewater treatments must be developed. Adsorption is an environmentally friendly option, and it offers the possibility of resolving two problems simultaneously. Besides removing pollutants from water, many adsorbents can be produced using wooden forestry residues. Such materials are generally considered as waste, which leads to their direct disposal. In addition, there are types of wooden forestry waste that have little or no use for humankind, such as fallen leaves or rotten fruits. Therefore, the utilization of wooden forestry residues for preparing low-cost adsorbents is promising. In this review, we briefly approach adsorption advantages to wastewater treatment. Later on, we focus on several types of wooden forestry residues as alternative low-cost adsorbents.

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Adsorption of pyrimethamine from wastewater using activated carbons prepared from Daniellia-oliveri sawdust

Cited by 4 publications

References 14 publications

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Thermochemical conversion of African balsam leaves‐cow dung hybrid wastes into biochar

Removal of Trimethoprim from Water using Carbonized Wood Waste as Adsorbents

An overview of forest residues as promising low-cost adsorbents

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