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Liu X, Ji R, Shi Y, Wang F, Chen W. Release of polycyclic aromatic hydrocarbons from biochar fine particles in simulated lung fluids: Implications for bioavailability and risks of airborne aromatics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:1159-1168. [PMID: 30577109 DOI: 10.1016/j.scitotenv.2018.11.294] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
Airborne carbonaceous fine particles, such as soot and biochar, represent a significant fraction of air particulate matter and have received widespread concern due to their health effects. Atmospheric carbonaceous particles can contain high concentration of polycyclic aromatic hydrocarbons (PAHs), and may pose significant health risks when carried into respiratory system from inhalation of particulates. In this study, the bioaccessibility of two PAH compounds, phenanthrene and pyrene, bound to biochar fine particles was assessed by examining their release in two simulated lung fluids: Gamble's solution and artificial lysosomal fluid (ALF). We observed that only 0.47 to 0.75% of biochar-bound PAHs were released in the simulated lung fluids, most likely due to the physical entrapment of PAH molecules in the micropore regimes of biochar, resulting in strong desorption hysteresis, even though apparent desorption equilibrium was reached within 30 min, well within the average clearance time of particulate matter in lung system. The inorganic and organic salts in the simulated lung fluids were found to inhibit the release of PAHs by exerting the pore blockage effect and salting-out effect. Moreover, the low molecular weight organic acids (LMWOAs) in the lung fluids further inhibited PAH release by increasing the micropore volume and surface area of biochar fine particles. When taking into account the inhibited release, the estimated carcinogenic risks of biochar-bound PAHs are typically low, even under extreme conditions wherein both biochar concentrations and PAH loadings on biochar are very high. An important implication is that contaminant bioavailability needs to be taken into account when assessing the risks of the contaminants bound to airborne carbonaceous materials.
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Affiliation(s)
- Xinlei Liu
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yu Shi
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, China
| | - Fang Wang
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China.
| | - Wei Chen
- College of Environmental Science and Engineering, Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, Nankai University, Tianjin 300350, China
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52
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Silva MRFDA, Queiroz MELRDE, Neves AA, Silva AADA, Oliveira AFDE, Oliveira RLDE, Azevedo MM. Impact of percentage and particle size of sugarcane biochar on the sorption behavior of clomazone in Red Latosol. AN ACAD BRAS CIENC 2018; 90:3745-3759. [PMID: 30517221 DOI: 10.1590/0001-3765201820180135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 06/08/2018] [Indexed: 11/22/2022] Open
Abstract
Biochar is a carbonaceous material that has excellent potential as a fertilizer and soil conditioner. However, there is a lack of information concerning the effects of the amount and particle size of this pyrogenic material on the soil sorption capacity. In this work, evaluation was made of changes in clomazone (CMZ) sorption in a Red Latosol following soil conditioning using different percentages (0.25, 0.5, and 1% w/w) of sugarcane biochar in three particle sizes (<106, 106-508, and 508-610 µm). The conditioned soils presented apparent sorption coefficients (Kd) up to 1300 times higher than that of pure soil, besides changes in the behavior of CMZ sorption. The biochar particle size and percentage influenced sorption of the herbicide as well as its retention in the amended soil during desorption processes. Both sorption and desorption Freundlich constants were linearly correlated with the external surface area of the biochar present in the soil.
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Affiliation(s)
- Marcos R F DA Silva
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - Maria Eliana L R DE Queiroz
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - Antônio A Neves
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - Antônio A DA Silva
- Laboratório de Manejo Integrado de Plantas Daninhas/MIPD, Departamento de Fitotecnia, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - André F DE Oliveira
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - Renan L DE Oliveira
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
| | - Mariane M Azevedo
- Laboratório de Química Analítica/LAQUA, Departamento de Química, Universidade Federal de Viçosa, Avenida Peter Henry Rolfs, s/n, Campus Universitário, 36570-900 Viçosa, MG, Brazil
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53
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Dong X, He L, Liu Y, Piao Y. Preparation of highly conductive biochar nanoparticles for rapid and sensitive detection of 17β-estradiol in water. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.09.129] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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54
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Hu S, Zhang D, Xiong Y, Yang Y, Ran Y. Nanopore-filling effect of phenanthrene sorption on modified black carbon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 642:1050-1059. [PMID: 30045487 DOI: 10.1016/j.scitotenv.2018.06.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 06/09/2018] [Accepted: 06/09/2018] [Indexed: 06/08/2023]
Abstract
Black carbon was produced by slow pyrolysis under an oxygen-limited condition at 500 °C, and was modified by some chemical methods (oxidation, hydrolysis, activation, and surface recombination). The modified samples were characterized by using elemental analysis, Fourier transformed infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) surface analysis, Boehm titration, cation exchange capacity(CEC)analysis, CO2 adsorption analysis, and then used to investigate the sorption behavior of phenanthrene. The results showed that the activation of ZnCl2 gave a maximum nanopore volume of 96.5 μL/g and a specific surface area of 241 m2/g, while the oxidation of NaClO gave a minimum nanopore volume of 63.3 μL/g and a specific surface area of 158 m2/g. The FTIR, XPS, and Boehm titration analysis showed that the new oxygen-containing functional groups were introduced during the oxidation treatments of H2O2 and NaClO. The sorption of phenanthrene on all samples was typically nonlinear, and the nonlinear factor (n) was negatively correlated with Vo, especially with Vo at 0-1.1 nm. The sorption parameter (log KOC) was positively correlated with nanopore volume (Vo) and specific surface area (SSA). Moreover, the model analysis showed that the nanopore filling was the main sorption mechanism, and molecular sieve effect was observed in the sorption of phenanthrene.
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Affiliation(s)
- Shujie Hu
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dainan Zhang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yongqiang Xiong
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yu Yang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yong Ran
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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55
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Wu L, Li B, Liu M. Influence of aromatic structure and substitution of carboxyl groups of aromatic acids on their sorption to biochars. CHEMOSPHERE 2018; 210:239-246. [PMID: 30005345 DOI: 10.1016/j.chemosphere.2018.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 06/25/2018] [Accepted: 07/01/2018] [Indexed: 06/08/2023]
Abstract
In order to clarify the influence of aromatic structure and COOH substitution of aromatic acids on their sorption to biochars, benzoic acid (BA), phthalic acid (PA), hemimellitic acid (HA), 2-biphenylcarboxylic acid (2-BA), 1-naphthoic acid (1-NA) and naphthalene were selected as model sorbates. Batch experiments on sorption of them to wheat straw-derived biochars at 300 °C (WS300) and 700 °C (WS700) were conducted. Results showed that WS700 with higher specific surface area and pore volume had faster and higher sorption of aromatic acids than WS300. Sorption affinity of aromatic acids decreased with increasing number of aromatic rings (BA > 1-NA > 2-BA), and was weakened by COOH substitution (BA > PA > HA). This was likely due to the π-electron delocalization into additional ring, reduced contact area of nonplanar aromatic structure on biochar surfaces, size exclusion of larger molecules in smaller pores of biochars and decreased hydrophobicity of aromatic acids by COOH substitution that abated the sorption. Dissociation of COOH substitution of aromatic acids also weakened their sorption to biochars due to the lower hydrophobicity of anionic species, and electrostatic repulsion between anionic species and negatively charged surface of biochars.
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Affiliation(s)
- Lin Wu
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources and Environmental Engineering, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Binghua Li
- Beijing Water Science and Technology Institute, Beijing, 100048, China.
| | - Mingzhu Liu
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources and Environmental Engineering, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China.
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56
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Chen T, Luo L, Deng S, Shi G, Zhang S, Zhang Y, Deng O, Wang L, Zhang J, Wei L. Sorption of tetracycline on H 3PO 4 modified biochar derived from rice straw and swine manure. BIORESOURCE TECHNOLOGY 2018; 267:431-437. [PMID: 30032057 DOI: 10.1016/j.biortech.2018.07.074] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/10/2018] [Accepted: 07/14/2018] [Indexed: 05/04/2023]
Abstract
Currently, the information about the sorption of tetracycline (TC) on animal manure derived biochar was rare although plant residue derived biochar showed high sorption of TC). Therefore, this study explored the sorption of TC on swine manure derived biochar, and compared with rice straw derived biochar simultaneously. Also, H3PO4 was adopted to modify both types of biochar. The sorption kinetic and isotherm data showed H3PO4 modification enhanced the sorption of TC on both types of biochar (especially swine-manure-biochar), and indicated the chemisorptions including H-bonding and π-π electron donor acceptor interaction might be the primary mechanism. Moreover, the strengthened electrostatic attraction between TC and biochars might largely explain the enhanced sorption capacity of TC along with pH increasing from 5.0 to 9.0. At the same conditions, swine manure derived biochar demonstrated lower sorption capacity of TC than rice straw biochar, but still could be good material for the sorption of TC.
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Affiliation(s)
- Tingwei Chen
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Ling Luo
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China.
| | - Shihuai Deng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China.
| | - Guozhong Shi
- Biogas Institute of Ministry of Agriculture, Chengdu 610041, People's Republic of China.
| | - Shirong Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Yanzong Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Ouping Deng
- College of Resources, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Lilin Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Jing Zhang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Luoyu Wei
- Biogas Institute of Ministry of Agriculture, Chengdu 610041, People's Republic of China
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57
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Sun K, Qiu M, Han L, Jin J, Wang Z, Pan Z, Xing B. Speciation of phosphorus in plant- and manure-derived biochars and its dissolution under various aqueous conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:1300-1307. [PMID: 29710629 DOI: 10.1016/j.scitotenv.2018.04.099] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
Phosphorus (P) in biochar serves as both a P source for plant growth and a contributor to water eutrophication, thus prioritizing the efficient management of P in biochar. This study employed solid- and solution- state 31P-nuclear magnetic resonance and X-ray diffraction analyses to explore the impact of feedstock and heating treatment temperature (HTT) on P species of biochars. The effects of ambient temperature, coexisting anions, pH and nutrient solution on P release were also investigated to study the effect of various environmental factors on P release from biochars. P species in both plant- and manure- derived biochars were dominated by inorganic orthophosphate and pyrophosphate (mainly calcium-bound-phosphates). The HTT of biochar showed a negative impact upon its pyrophosphate content. Compared with plant biochars, manure biochars contained higher P but had a lower release degree. Release of P from biochars was controlled by diffusion-dissolution process and was enhanced by higher ambient temperature, co-existing anions, and both acidic and alkaline conditions but inhibited by coexisting Hoagland nutrients. Anion-induced increase in P release was more significant for plant biochars than manure biochars. These findings help to adjust favorable environmental conditions for the full utilization of P in biochars.
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Affiliation(s)
- Ke Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Mengyi Qiu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Lanfang Han
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
| | - Jie Jin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Ziying Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Zezhen Pan
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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58
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Yang Y, Sun K, Han L, Jin J, Sun H, Yang Y, Xing B. Effect of minerals on the stability of biochar. CHEMOSPHERE 2018; 204:310-317. [PMID: 29665534 DOI: 10.1016/j.chemosphere.2018.04.057] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/03/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
The stability of biochar is a major determinant of its potential for carbon sequestration. In previous studies, the biochar stability was evaluated by analyzing the oxidation resistance property of biochar, for which, K2Cr2O7/H2O2 oxidation and thermogravimetric analysis (TGA) were widely used to measure the high oxidation resistance of biochars. In this study, rice straw (RI)- and swine manure (SW)-derived biochars produced at different heating treatment temperatures (HTTs) and their corresponding de-ashed biochars and iron-biochars were selected to investigate the effect of minerals on these biochars stability. There was a significantly positive correlation between carbon remaining values (CRVs) obtained after K2Cr2O7/H2O2 oxidation and ash (mineral) contents of biochars (p < 0.05). Moreover, the decreasing CRVs of most biochars were observed after de-ashing treatment. These K2Cr2O7/H2O2 oxidation results indicated that endogenous minerals in biochars can protect biochars from chemical oxidation. On the other hand, the R50 (C recalcitrance index) values of iron-biochars (33.3-57.4%) were lower than those of corresponding biochars (38.6-60.8%), indicating that Fe-bearing mineral formed in biochars can promote the thermal decomposition of biochars. In H2O2 oxidation, the different change trend of CRVs between biochars produced at 450 °C and biochars produced at 600 °C after iron mineral treatment showed that the effect of exogenous Fe-bearing mineral on biochar stability was related to biochar category regulated by HTTs. This study indicated that endogenous minerals could increase biochar stability, and exogenous Fe-bearing minerals had dissimilar effects on different kinds of biochars, which critically regulates the potential of biochar for long-term carbon sequestration.
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Affiliation(s)
- Yan Yang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Ke Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Lanfang Han
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jie Jin
- School of Environment and Chemical Engineering, North China Electric Power University, Beijing 102206, China
| | - Haoran Sun
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yu Yang
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USA
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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59
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Schreiter IJ, Schmidt W, Schüth C. Sorption mechanisms of chlorinated hydrocarbons on biochar produced from different feedstocks: Conclusions from single- and bi-solute experiments. CHEMOSPHERE 2018; 203:34-43. [PMID: 29605747 DOI: 10.1016/j.chemosphere.2018.03.173] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 03/08/2018] [Accepted: 03/26/2018] [Indexed: 06/08/2023]
Abstract
Biochar is increasingly deemed a potential sorbent for contaminants in soil and water remediation. We tested three biochars from different feedstocks (cattle manure, grain husk, and wood chips) produced at relatively low pyrolysis temperature (450 °C), for their sorption behavior towards trichloroethylene (TCE) and tetrachloroethylene (PCE) in single- and bi-solute systems. In single-solute experiments, all biochars show stronger sorption for TCE (about 50% based on solubility-normalized Freundlich coefficients). The lower sorption of PCE is attributed to steric effects, e.g. size exclusion in small micropores and specific interactions. Plant-derived, carbon-rich biochars with high specific surface area and microporosity predominantly sorb via pore-filling, as also observed in activated carbon. Biochar produced from manure, with higher ash content and polarity, and smaller total pore volume (PVtot), shows significant contribution of partitioning. These findings also apply to bi-solute systems. TCE and PCE show different competition behavior depending on biochar properties. Plant-based biochars are pore-filling-dominated and show strong competition. However, competition behavior in microporous biochars depends on the concentration range. Manure biochar with high polarity and low PVtot shows significant partitioning and therefore less competition. Compared to the plant-based chars competition in manure biochar is not concentration-dependent. These results indicate that biochars with a large fraction of non-carbonized phase facilitate non-competitive sorption and might be a valuable sorbent in mixed contaminant systems.
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Affiliation(s)
- Inga J Schreiter
- Institute of Applied Geosciences, Technische Universität Darmstadt, Schnittspahnstraße 9, 64287, Darmstadt, Germany.
| | - Wolfgang Schmidt
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.
| | - Christoph Schüth
- Institute of Applied Geosciences, Technische Universität Darmstadt, Schnittspahnstraße 9, 64287, Darmstadt, Germany.
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60
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Huang P, Ge C, Feng D, Yu H, Luo J, Li J, Strong PJ, Sarmah AK, Bolan NS, Wang H. Effects of metal ions and pH on ofloxacin sorption to cassava residue-derived biochar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:1384-1391. [PMID: 29074248 DOI: 10.1016/j.scitotenv.2017.10.177] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/12/2017] [Accepted: 10/17/2017] [Indexed: 06/07/2023]
Abstract
In this study, the impacts of various cations, cation strength and pH on ofloxacin (OFL) adsorption to cassava residue-derived biochars were determined. The associated adsorption mechanisms are discussed. The biochars were prepared at pyrolysis temperatures ranging from 350°C to 750°C, and labeled as CW350, CW450, CW550, CW650 and CW750. The Freundlich model provided the best fit to describe the adsorption capacity of OFL and the Freundlich coefficient (logKf) increased with increasing pyrolysis temperature. The inclusion of Zn2+ or Al3+ increased OFL sorption capacities of five biochars, while Cu2+ reduced sorption to CW450 and CW550. No significant impacts on OFL sorption were observed in the presence of K+ and Ca2+. The concentration of Ca2+ affected the adsorption capacity of CW550, but had no significant impact on other biochars. The pH of OFL solution, ranging from 3 to 9, had no significant changes on OFL adsorption by all the tested biochars. Results of FTIR spectra and zeta potential indicated that electrostatic interactions, cationic exchange, metal bridging and micropore filling could be the main sorption mechanism between OFL and biochars. These studies indicated that cassava residue can be converted into biochars that are effective adsorbents for removing OFL from aqueous solution.
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Affiliation(s)
- Peng Huang
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Chengjun Ge
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Dan Feng
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Huamei Yu
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Jiwei Luo
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Jiatong Li
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - P J Strong
- Queensland University of Technology, GPO Box 2432, 2 George St, Brisbane, QLD 4001, Australia
| | - Ajit K Sarmah
- Civil & Environmental Engineering Department, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Hailong Wang
- School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Dongguan, Guangdong 523169, China.
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61
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Li J, Cao L, Yuan Y, Wang R, Wen Y, Man J. Comparative study for microcystin-LR sorption onto biochars produced from various plant- and animal-wastes at different pyrolysis temperatures: Influencing mechanisms of biochar properties. BIORESOURCE TECHNOLOGY 2018; 247:794-803. [PMID: 30060415 DOI: 10.1016/j.biortech.2017.09.120] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 09/15/2017] [Accepted: 09/17/2017] [Indexed: 06/08/2023]
Abstract
Diverse biochars produced from various feedstock sources (i.e., plant- and animal-wastes) at different pyrolysis temperatures (PTs) were characterized for their structural properties and sorption behaviors of aqueous microcystin-LR (MC-LR). Results indicated that MC-LR sorption capability of tested biochars varied as a function of biochar structural properties. Sorption mechanisms involved electrostatic attraction, pore-filling, hydrogen-bonding effect and π-π electron donor-acceptor interaction, but predominant mechanisms varied for different biochars. At the same PT (300 or 600°C), chicken manure-derived biochars (CMBs) exhibited stronger MC-LR sorption than others, with sorption coefficient (Kd) of 6.321-15.529Lg-1 and 6.354-8.294Lg-1 at aqueous equilibrium concentration (Ce) of 40 and 200μgL-1, respectively. Higher mesoporosity, the point of zero charge and total surface groups concentration related to higher ash content of CMBs, which might be indispensable for enhancing MC-LR sorption. This study suggested that CMBs have great potential as low-cost sustainable sorbents to abate MC-LR contamination.
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Affiliation(s)
- Jieming Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
| | - Linrong Cao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Yue Yuan
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Ruiping Wang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Yunze Wen
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Jiyong Man
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
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62
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Rosales E, Meijide J, Pazos M, Sanromán MA. Challenges and recent advances in biochar as low-cost biosorbent: From batch assays to continuous-flow systems. BIORESOURCE TECHNOLOGY 2017; 246:176-192. [PMID: 28688738 DOI: 10.1016/j.biortech.2017.06.084] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 06/14/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
Over the past few years, the increasing amount of pollutants and their diversity demand to develop versatile low-cost adsorption systems. The use of biomass feedstock such as agricultural residues, wood chips, manure or municipal solid wastes as source to produce low-cost biosorbent, and the new advances in their synthesis have encouraged remarkable efforts towards the development of biochar "on demand" in which their characteristics can be improved. This new trend opens the potential of biochar application in the removal of pollutants from wastewater, however, its use in environmental management requires the development of full-scale biosorption in engineered systems. Thus, this paper provides a brief review of recent progress in the research and practical application of biochar with a special emphasis on its potential to reduce the pollutants present in wastewater or to render them harmless. Furthermore, research gaps and uncertainties detected in their scale-up in continuous-flow systems are highlighted.
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Affiliation(s)
- Emilio Rosales
- Department of Chemical Engineering, University of Vigo, Campus Universitario As Lagoas - Marcosende, E-36310 Vigo, Spain
| | - Jessica Meijide
- Department of Chemical Engineering, University of Vigo, Campus Universitario As Lagoas - Marcosende, E-36310 Vigo, Spain
| | - Marta Pazos
- Department of Chemical Engineering, University of Vigo, Campus Universitario As Lagoas - Marcosende, E-36310 Vigo, Spain
| | - María Angeles Sanromán
- Department of Chemical Engineering, University of Vigo, Campus Universitario As Lagoas - Marcosende, E-36310 Vigo, Spain.
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63
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Zhang X, Gao B, Zheng Y, Hu X, Creamer AE, Annable MD, Li Y. Biochar for volatile organic compound (VOC) removal: Sorption performance and governing mechanisms. BIORESOURCE TECHNOLOGY 2017; 245:606-614. [PMID: 28910648 DOI: 10.1016/j.biortech.2017.09.025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/01/2017] [Accepted: 09/04/2017] [Indexed: 06/07/2023]
Abstract
Sorption is one of the most efficient and low cost strategies for volatile organic compound (VOC) removal, but VOC sorption by biochar has seen limited research. In this work, gas phase sorption experiments were conducted to determine the sorption potential and mechanisms of VOCs onto biochar. A total of 15 biochars produced from 5 common feedstocks at 300, 450, and 600°C were evaluated as sorbents. Three common VOCs (acetone, cyclohexane, and toluene) were chosen as sorbates. The results showed that all the tested biochars had VOC sorption capacity in the range of 5.58-91.2mgg-1. The sorption capacities were mainly influenced by both the surface area of biochar and its noncarbonized organic matter content. The vapor sorption process was exothermic, and the removal of VOCs by the biochars decreased with increasing feedstock temperature. Both the physical adsorption and partition mechanisms played important roles in controlling the VOC removal by the biochars. Biochar maintained its VOC removal ability after five consecutive sorption-desorption cycles, which indicated good reusability. Findings of this work suggest that biochar is a promising alternative sorbent for gaseous VOC removal.
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Affiliation(s)
- Xueyang Zhang
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221000, PR China; Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle (Nanchang HangKong University), Nanchang 330063, PR China; Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Yulin Zheng
- Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Xin Hu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Center of Material Analysis, 20 Hankou Road, Nanjing University, Nanjing 210093, PR China
| | - Anne Elise Creamer
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221000, PR China
| | - Michael D Annable
- Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Yuncong Li
- Tropical Research and Education Center, University of Florida, Homestead, FL 33031, USA
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64
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Lee SR, Lee J, Lee T, Tsang YF, Jeong KH, Oh JI, Kwon EE. Strategic use of CO 2 for co-pyrolysis of swine manure and coal for energy recovery and waste disposal. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.09.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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65
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Miao Q, Bi E, Li B. Roles of polar groups and aromatic structures of biochar in 1-methyl-3-octylimidazolium chloride ionic liquid adsorption: pH effect and thermodynamics study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22265-22274. [PMID: 28799134 DOI: 10.1007/s11356-017-9886-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
Adsorption mechanisms of 1-methyl-3-octylimidazolium chloride ([OMIM]Cl) on rice straw-derived biochars produced at 400, 500, and 700 °C (referred as RB400, RB500, and RB700, respectively) were evaluated. Adsorption affinity followed the order of RB700 > RB400 > RB500. Electrostatic attraction and hydrogen bond controlled adsorption of [OMIM]Cl on RB400, while π-π EDA interaction between [OMIM]Cl and the aromatic rings of biochar dominated adsorption of RB500 and RB700. With increasing solution pH, -COOH and -OH on biochar became deprotonated. Consequently, [OMIM]Cl binding to these sites changed from hydrogen bond to electrostatic attraction. Adsorption capacity of [OMIM]Cl increased with increasing pH during the adsorption process. Solid concentration induced by -OH of [OMIM]Cl was higher than that of -COOH. Thermodynamics study indicated that adsorption process was spontaneous and endothermic. ∆H 0 values indicated that [OMIM]Cl adsorption on biochars was a physisorption.
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Affiliation(s)
- Qiuci Miao
- School of Water Resources and Environment, and Beijing Key Laboratory of Water Resources and Environment Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China
| | - Erping Bi
- School of Water Resources and Environment, and Beijing Key Laboratory of Water Resources and Environment Engineering, China University of Geosciences (Beijing), Beijing, 100083, People's Republic of China.
| | - Binghua Li
- Beijing Water Science and Technology Institute, Beijing, 100048, China
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66
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Zhang F, Li Y, Zhang G, Li W, Yang L. The importance of nano-porosity in the stalk-derived biochar to the sorption of 17β-estradiol and retention of it in the greenhouse soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:9575-9584. [PMID: 28247270 DOI: 10.1007/s11356-017-8630-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 02/12/2017] [Indexed: 06/06/2023]
Abstract
Natural estrogens in greenhouse soils with long-term manure application are becoming a potential threat to adjacent aquatic environment. Porous stalk biochar as a cost-effective adsorbent of estrogen has a strong potential to reduce their transportation from soil to waters. But the dominant adsorption mechanism of estrogen to stalk biochars and retention of estrogen by greenhouse soils amended with biochar are less well known. Element, function groups, total surface area (SAtotal), nano-pores of stalk biochars, and chemical structure of 17β-estradiol (E2, length 1.20 nm, width 0.56 nm, thickness 0.48 nm) are integrated in research on E2 sorption behavior in three stalk-derived biochars produced from wheat straw (WS), rice straw (RS), and corn straw (CS), and greenhouse soils amended with optimal biochar. The three biochars had comparable H/C and (O + N)/C, while their aromatic carbon contents and total surface areas (SAtotal) both varied as CS > WS > RS. However, WS had the highest sorption capacity (logK oc), sorption affinity (K f ), and strongest nonlinearity (n). Additionally, the variation of Langmuir maximum adsorption capacity (Q 0) was consistent with the trend for SA1.2-20 (WS > RS > CS) but contrary to the trend for SAtotal and SA<1.2 (CS > WS > RS). These results indicate that pore-filling dominates the sorption of E2 by biochars and exhibits "sieving effect" and length-directionality-specific via H-bonding between -OH groups on the both ends of E2 in the length direction and polar groups on the inner surface of pores. After the addition of wheat straw biochar, the extent of increase in the sorption affinity for E2 in the soil with low OC content was higher than those in the soil with high OC content. Therefore, the effectiveness for the wheat straw biochar mitigating the risk of E2 in greenhouse soil depended on the compositions of soil, especially organic matter.
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Affiliation(s)
- Fengsong Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101, Beijing, China
| | - Yanxia Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, 100875, Beijing, China
| | - Guixiang Zhang
- College of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China.
| | - Wei Li
- Nuclear and Radiation Safety Centre, Ministry of Environmental Protection of China, 100082, Beijing, China
| | - Lingsheng Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101, Beijing, China.
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67
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Guo X, Dong H, Yang C, Zhang Q, Liao C, Zha F, Gao L. Application of goethite modified biochar for tylosin removal from aqueous solution. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.015] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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68
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Jin J, Kang M, Sun K, Pan Z, Wu F, Xing B. Properties of biochar-amended soils and their sorption of imidacloprid, isoproturon, and atrazine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 550:504-513. [PMID: 26845186 DOI: 10.1016/j.scitotenv.2016.01.117] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/19/2016] [Accepted: 01/19/2016] [Indexed: 05/26/2023]
Abstract
Biochars produced from rice straw, wheat straw and swine manure at 300, 450 and 600°C were added to soil at 1, 5, 10, or 20% levels to determine whether they would predictably reduce the pore water concentration of imidacloprid, isoproturon, and atrazine. The sorption capacity of the mixtures increased with increasing biochar amounts. The enhanced sorption capacity could be attributed to the increased organic carbon (OC) content and surface area (SA) as well as the decreased hydrophobicity. Biochar dominated the overall sorption when its content was above 5%. The OC contents of the mixtures with 10% and 20% biochar were generally lower than the predicted values. This implies possible interaction between soil components and biochar and/or the effect of biochar oxidation. For soils amended with biochars produced at 300°C, the N2 SA (N2-SA) values were underestimated. The predicted CO2 SA (CO2-SA) values of the mixtures at the biochar content of 10% and 20% were generally higher than the experimental values. Sorption of imidacloprid to the soils amended with biochar at 10% and 20% levels, excluding the soils amended with rice (SR300) and wheat (SW300) straw-derived biochar produced at 300°C, was lower than the predicted value. For SR300 and SW300, the intrinsic sorption capacity of biochar was enhanced by 1.3-5.6 times, depending on the biochar, solute concentration, and biochar dose. This study indicates that biochars would be helpful to stabilize the soil contaminated with imidacloprid, isoproturon, and atrazine, but the sorption capacity of the mixtures could exceed or fall short of predicted values without assuming a cross-effect between soil and biochar.
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Affiliation(s)
- Jie Jin
- State Key Laboratory of Water Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
| | - Mingjie Kang
- State Key Laboratory of Water Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Ke Sun
- State Key Laboratory of Water Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Zezhen Pan
- State Key Laboratory of Water Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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