Modification of bio-char derived from fast pyrolysis of biomass and its application in removal of tetracycline from aqueous solution

Liu, Pei; Liu, Wujun; Jiang, Hong; Chen, Jie‐Jie; Li, Wen‐Wei; Yu, Han‐Qing

doi:10.1016/j.biortech.2012.06.085

Cited by 584 publications

(190 citation statements)

References 33 publications

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“…As illustrated in Table 3, removal of sulfamethoxazole were in the range of 12% for two types of wood feedstock, while using sugarcane as the feedstock produced a biochar able to achieve removal up to 21% [79]. Using rice husk and rice straw as the feedstock, sulfamethoxazole removal was as low as 11.6% except when using alkali treated rice husk feedstock where almost 30% removal was achieved [67]. The carbon, nitrogen and phosphorus content in the feedstock has been found to create significant differences in the treatment performance of biochar [67,79].…”

Section: Adsorption Using Biocharmentioning

confidence: 99%

Treatment technologies for emerging contaminants in water: A review

Rodríguez-Narváez

Peralta‐Hernández

Goonetilleke

et al. 2017

Chemical Engineering Journal

982

287

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Section: Adsorption Using Biocharmentioning

confidence: 99%

Treatment technologies for emerging contaminants in water: A review

Rodríguez-Narváez

Peralta‐Hernández

Goonetilleke

et al. 2017

Chemical Engineering Journal

982

287

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“…Pyrolysis is a rapid and incomplete combustion process that converts biomaterials into biochar (Liu et al 2012;Wang and Xing 2007). Because sulfonamide antibiotics are unstable at high temperatures, pyrolysis may be an alternative method to convert cow manure to a useful bio-adsorbent that is free of residual antibiotics.…”

Section: Introductionmentioning

confidence: 99%

Removal of sulfamethazine antibiotics using cow manure-based carbon adsorbents

Tzeng

Liu

Deng

et al. 2016

Int. J. Environ. Sci. Technol.

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Low-cost adsorbents, e.g., cow manure-based carbon, provide alternatives to remove veterinary antibiotic sulfamethazine (SMT) from contaminated water bodies. In this study, the chemical structures and compositions of cow manure (CM) carbonized at 400, 600, and 800°C (CM400, CM600, and CM800) were examined using elemental analyzer (EA), Brunauer-Emmett-Teller, and spectroscopic techniques. Adsorptions of SMT on CM samples were conducted as functions of pH, hydrophobicity, and ionic strengths. Results of EA and spectroscopic analyses suggested that the raw CM and CM400 samples contained the highest amounts of O-containing groups and aliphatic domains. Amounts of such two chemical groups decreased as carbonization temperatures increased. The specific surface areas and total pore volumes of CM samples increased significantly when the carbonization temperatures exceeded 600°C. SMT adsorption on CM samples could be described essentially by the pseudo-second-order kinetic, intra-particle diffusion, and Freundlich isotherm models. Low pH and ionic strength were favorable for SMT adsorption in CM samples, particularly for the CM800, because a strong p ? -p electron donor-acceptor interaction (p ? -p EDA) was formed between SMT and CM surfaces enriched with hydrophobic domains. Further, the high adsorption affinity of SMT to the CM600 and CM800 samples was attributed in part to their larger surface areas and total pore volumes. Generally, CM-based materials carbonized [600°C showed relatively stable structures and exhibited strong aromatic properties. Moreover, maximum adsorption capacities of SMT on the CM800 sample (37-39 mM/kg) were significantly higher than those of other common adsorbents (0.02-35.93 mM/kg).

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“…Biochar can be produced in every country using various raw materials including energy crops (e.g., corn, cereals, wood pellets, and oilseed rape), agricultural wastes (e.g., wheat straw, rice husk, waste wood, pistachio, peanut, hazelnut shells, and manure) and other wastes including sewage sludge (Liu et al, 2012;Moussavi and Khosravi, 2012;Agrafioti et al, 2013Agrafioti et al, , 2014Inyang et al, 2014;Frišták et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Morphology of Modified Biochar and Its Potential for Phenol Removal from Aqueous Solutions

Komnitsas

Zaharaki

2016

Front. Environ. Sci.

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In the present study, the efficiency of phenol removal from synthetic aqueous solutions by chemically modified biochar with the use of 1M KOH or 1M FeCl 3 was investigated. Initially, biochar was produced after slow pyrolysis of three different agricultural wastes, namely pistachio (Pistacia vera L.) shells, pecan (Carya illinoinensis) shells, and wood sawdust. The quality of biochar was assessed by evaluating its main properties, such as pH, surface area, porosity and C content. X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Fourier Transform Infrared Spectroscopy (FTIR) were used for the identification of biochar's structure. The efficiency of phenol removal from synthetic solutions was assessed with the use of kinetic and equilibrium experiments. The experimental results show that the KOH-modified biochar exhibited the highest phenol removal efficiency. Hydrophobic sorption on its surface is the main phenol removal mechanism. The pseudo-second order model fits best the kinetic data, while the Freundlich model, as deduced from an equilibrium study describes very well sorption of phenols on all biochars examined.

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Modification of bio-char derived from fast pyrolysis of biomass and its application in removal of tetracycline from aqueous solution

Cited by 584 publications

References 33 publications

Treatment technologies for emerging contaminants in water: A review

Treatment technologies for emerging contaminants in water: A review

Removal of sulfamethazine antibiotics using cow manure-based carbon adsorbents

Morphology of Modified Biochar and Its Potential for Phenol Removal from Aqueous Solutions

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