Correlations and adsorption mechanisms of aromatic compounds on a high heat temperature treated bamboo biochar

Yang, Kun; Yang, Jingjing; Jiang, Yanlong; Wu, Wenhao; Lin, Daohui

doi:10.1016/j.envpol.2015.12.004

Cited by 120 publications

(39 citation statements)

References 36 publications

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“…In recent past, biochar derived from many agricultural wastes has been used as an effective, efficient, and low cost adsorbent for the removal of heavy metals and organic contaminants from water and soil [15] because of its highly porous structure, large surface area, high functional groups and mineral components [16]. Biochars are mainly applied for enhancing soil fertility and crops productivity, reducing emission of green house gases, waste management and energy production [17,18]. Biochars are usually prepared by the pyrolysis of carbon rich agro-solid waste materials.…”

Section: Introductionmentioning

confidence: 99%

Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Khan

Mukhlif

Khan³

2017

Egyptian Journal of Basic and Applied Sciences

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Keywords:Copper(II) and zinc(II) Muskmelon peel biochar Langmuir Pseudo-second order Exothermic a b s t r a c tThe muskmelon peel, an abundant common food waste material, has been gainfully utilized for the production of biochar. The biosorptive characteristics of muskmelon peel biochar towards copper(II) and zinc(II) from water are investigated. The biochar is characterized by infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) studies. The various process parameters for the removal of copper(II) and zinc(II) using biochar are optimized. The maximum biosorption of Cu(II) and Zn(II) is attained at pH 7. Maximum Langmuir adsorption capacity (q m ) are 78.74 for copper(II) and 72.99 mg/g for zinc(II) at 303 K. Langmuir isotherm is found to best fit the equilibrium data indicating homogeneous adsorption of metal ions onto the biochar surface. The pseudo-second order kinetic model describes the data best indicating adsorption of one molecule of metal ions onto two surface sites. Thermodynamic parameters suggest the adsorption process to be spontaneous and exothermic. Both liquid-film and intra-particle diffusions controll the overall kinetics of the adsorption process. Biochar proved to be an inexpensive and efficient adsorbent for the removal of titled metals from liquid phase. Ó 2017 Mansoura University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Introductionmentioning

confidence: 99%

Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Khan

Mukhlif

Khan³

2017

Egyptian Journal of Basic and Applied Sciences

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“…It also relates to the optimization of the retention of phenol on the eggshells calcined at different temperatures of 200˚C to 1000˚C. The effect of various conditions and parameters were studied in batch experiments [18].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Calcined Eggshell Waste as an Adsorbent for the Removal of Phenol from Aqueous Solution

Chraibi¹,

Moussout²,

Boukhlifi³

et al. 2016

JEAS

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Calcined eggshells (CES) were tested as adsorbent at a low cost for the removal of phenol from the waste water. The shells of Eggs extracts from waste were washed and then dried at a temperature of 60˚C and finally calcined in an oven at the atmospheric air in several temperatures 200˚C, 400˚C, 600˚C, 800˚C, 1000˚C. The chemical composition of the obtained adsorbs was analyzed by the X-ray diffraction. The isothermal study of adsorption of the phenol was realized for the various adsorbates. It showed that the biggest efficiency of the elimination was attributed to the calcined eggshells to 1000˚C with a percentage that reached 37%. The kinetics of adsorption were described by the first rate model. The intra particular distribution is a significant step in the adsorption process of phenol on calcined eggshells (CES). The separation factor gives a favorable adsorption of phenol on the CES.

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“…Several reports were found on p-cresol adsorption on biochars [33][34][35] with adsorption capacities for p-cresol ranging from 0.33, 6.97 and 7.63 mg·g −1 for bamboo, pinewood, and swine manure biochars, respectively. The two higher reported adsorption capacities equated to 3-4 h until the biochars reached their capacity under the conditions observed in this study at a biochar dosage of 4.56 kg·m −2 , i.e., not practical for stored manure.…”

Section: Treatment Effects On Volatile Organic Compoundsmentioning

confidence: 99%

Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions

et al. 2017

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Abstract:Managing the environmental impacts associated with livestock production is a challenge for farmers, public and regulatory agencies. Sustainable solutions that take into account technical and socioeconomic factors are needed. For example, the comprehensive control of odors, ammonia (NH 3 ), hydrogen sulfide (H 2 S), and greenhouse gas (GHG) emissions from swine production is a critical need. Stored manure is a major source of gaseous emissions. Mitigation technologies based on bio-based products such as biochar are of interest due to the potential benefits of nutrient cycling. The objective of this study was to test non-activated (non-functionalized) biochar for the mitigation of gaseous emissions from stored manure. Specifically, this included testing the effects of: (1) time; and (2) dosage of biochar application to the swine manure surface on gaseous emissions from deep-pit storage. The biochar surface application was tested with three treatments (1.14, 2.28 and 4.57 kg·m −2 manure) over a month. Significant reductions in emissions were observed for NH 3 (12.7-22.6% reduction as compared to the control). Concomitantly, significant increases in CH 4 emissions (22.1-24.5%) were measured. Changes to emissions of other target gases (including CO 2 , N 2 O, H 2 S, dimethyl disulfide/methanethiol, dimethyl trisulfide, n-butyric-, valeric-, and isovaleric acids, p-cresol, indole, and skatole) were not statistically significant. Biochar treatment could be a promising and comparably-priced option for reducing NH 3 emissions from stored swine manure.

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Correlations and adsorption mechanisms of aromatic compounds on a high heat temperature treated bamboo biochar

Cited by 120 publications

References 36 publications

Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Utilization of Calcined Eggshell Waste as an Adsorbent for the Removal of Phenol from Aqueous Solution

Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions

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Correlations and adsorption mechanisms of aromatic compounds on a high heat temperature treated bamboo biochar

Cited by 120 publications

References 36 publications

Uptake of Cu2+and Zn2+from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Uptake of Cu2+and Zn2+from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Utilization of Calcined Eggshell Waste as an Adsorbent for the Removal of Phenol from Aqueous Solution

Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions

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Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies

Uptake of Cu²⁺and Zn²⁺from simulated wastewater using muskmelon peel biochar: Isotherm and kinetic studies