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Long W, Chen Z, Chen X, Zhong Z. Investigation of the Adsorption Process of Chromium (VI) Ions from Petrochemical Wastewater Using Nanomagnetic Carbon Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3815. [PMID: 36364591 PMCID: PMC9653853 DOI: 10.3390/nano12213815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/16/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Magnetic mesoporous carbon (MMC) and magnetic activated carbon (MAC) are good functionalized carbon materials to use when applying environmental techniques. In this work, a series of efficient magnetic composite adsorbents containing Fe3O4 and carbon were prepared successfully and used for the adsorption of Cr(VI) ions in petrochemical wastewater. The morphology and structure of these magnetic adsorbents were characterized with FTIR, TG, XRD, VSM, BET, and SEM technologies. The effect of different factors, such as pH, adsorption time, initial Cr(VI) ions' concentration, Fe3O4 loading, and adsorption time, on the adsorption behavior were discussed. The results showed that the 8%Fe3O4@MMC adsorbent exhibited a high removal rate, reutilization, and large adsorption capacity. The corresponding adsorption capacity and removal rate could reach 132.80 mg·g-1 and 99.60% when the pH value, adsorption time, and initial Cr(VI) ions' concentration were 2, 180 min, and 80 mg·L-1 at 298 K. Four kinds of adsorption isotherm models were used for fitting the experimental data by the 8%Fe3O4@MMC adsorbent at different temperatures in detail, and a kinetic model and thermodynamic analysis also were performed carefully. The reutilization performance was investigated, and the Fe3O4@MMC adsorbent exhibited greater advantage in the adsorption of Cr(VI) ions. These good performances can be attributed to a unique uniform pore structure, different crystalline phases of Fe3O4 particles, and adsorption potential rule. Hence, the 8%Fe3O4@MMC adsorbent can be used in industrial petrochemical wastewater treatment.
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Affiliation(s)
- Wei Long
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Guangdong University of Petrochemical Technology, Maoming 525000, China
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhilong Chen
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Xiwen Chen
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhanye Zhong
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming 525000, China
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Chen J, Li H, Li J, Chen F, Lan J, Hou H. Efficient removal of tetracycline from water by tannic acid-modified rice straw-derived biochar:Kinetics and mechanisms. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wei W, Li J, Han X, Yao Y, Zhao W, Han R, Li S, Zhang Y, Zheng C. Insights into the adsorption mechanism of tannic acid by a green synthesized nano-hydroxyapatite and its effect on aqueous Cu(II) removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146189. [PMID: 33714103 DOI: 10.1016/j.scitotenv.2021.146189] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/31/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
The polyphenolic tannic acid (TA) has been widely used in the stabilization and surface modification of nanomaterials. The interaction mechanism of TA with the biogenic nano-hydroxyapatite (nHAP) and its environmental importance, however, are poorly understood. This study explored the adsorption of TA using the green synthesized, eggshell-derived nHAP and implications of this process for the removal of aqueous Cu(II) via batch adsorption experiments, Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) investigations. TA adsorption by nHAP was a complex pH-dependent process and significantly correlated with TA molecule speciation and amphoteric properties of nHAP via multiple adsorption modes including surface complexation, electrostatic attraction, and hydrogen bond. The maximum TA adsorption amount was found to be 94.8 mg/g for less crystalline nHAP with lower calcination temperature. In the ternary Cu-TA-nHAP systems, TA promoted Cu(II) adsorption at pH < 5 and reduced Cu(II) uptake at pH > 5. Further studies of the effects of ionic strength and addition sequences, as well as Raman, FTIR, and XPS analyses revealed Cu(II) adsorption on nHAP was mainly dominated by inner-sphere surface complexation. These results can shed light on not only the utility of biogenic nHAP for TA and Cu(II) adsorption but also the evaluation of the effect of TA on the environmental behavior of heavy metals.
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Affiliation(s)
- Wei Wei
- School of Environment, Nanjing Normal University, Nanjing 210023, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China; Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Shenzhen 518055, China
| | - Junsuo Li
- School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Xuan Han
- School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Yijun Yao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Zhao
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian, China
| | - Ruiming Han
- School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Shiyin Li
- School of Environment, Nanjing Normal University, Nanjing 210023, China
| | - Yong Zhang
- Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Chunmiao Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Shenzhen 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science & Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
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Fang Y, Yang K, Zhang Y, Peng C, Robledo-Cabrera A, López-Valdivieso A. Highly surface activated carbon to remove Cr(VI) from aqueous solution with adsorbent recycling. ENVIRONMENTAL RESEARCH 2021; 197:111151. [PMID: 33844973 DOI: 10.1016/j.envres.2021.111151] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/20/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
To enhance the inferior removal capability of aqueous Cr(VI) by commercial activated carbon under neutral conditions. The emerging ball milling technology was employed and the removal efficiency of Cr(VI) by ball-milled highly activated carbon (HAC) increased from 68.3% to 99.0% under pH 6 and from 42.7% to 77.8% under pH 7 compared to pristine activated carbon (AC), respectively. Raman spectra and Boehm's titration results signified that the enhanced Cr(VI) removal performance of HAC under neutral conditions was associated with the enriched surface acid functional groups, in which the content of COOH groups increased from 0.31 mmol/g to 0.97 mmol/g. Two Cr(VI) removal mechanisms were proposed established on the acid and alkalic solution washed chromium-loaded HAC, involving the reduction of Cr(VI) to Cr(III) subsequently accompany with the formation of chromium hydroxides on the surface and inside the pores of HAC, and the bonding of CrO42- on the surface COOH groups, as confirmed by SEM-EDX element mapping and specific surface area and porosity measurements. The Pseudo-second order model and Freundlich model fitted the adsorption kinetic and isotherm of AC and HAC well severally, suggesting that the specific interaction of Cr(VI) with the HAC surface and the Cr(VI) removal was multi-layer adsorption. Thermodynamic study exhibited the spontaneity of Cr(VI) removal on ball-milled HAC was increased. Reusability and regeneration studies of HAC denoted the potential application on Cr(VI) uptake under neutral conditions.
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Affiliation(s)
- Yi Fang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Ke Yang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Yipeng Zhang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Changsheng Peng
- School of Environmental and Chemical Engineering, Zhaoqing Univerity, Zhaoqing, 526061, China.
| | - Aurora Robledo-Cabrera
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Alejandro López-Valdivieso
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
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Chaudhary P, Beniwal V, Umar A, Kumar R, Sharma P, Kumar A, Al-Hadeethi Y, Chhokar V. In vitro microcosm of co-cultured bacteria for the removal of hexavalent Cr and tannic acid: A mechanistic approach to study the impact of operational parameters. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111484. [PMID: 33120265 DOI: 10.1016/j.ecoenv.2020.111484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Industrial wastes, for instance, tannery wastes are rich soups of resistant and bioremediation-potent bacteria. In the present work, Chromium (Cr) and tannic acid (TA) resistance bacterial strains were isolated from tannery effluent and identified as Bacillus subtilis (MCC 3275) and Bacillus safensis (MCC 3283) based on its 16S Ribosomal RNA homology. Hexavalent Cr is highly toxic and mutagenic due to its high mobility and reactivity. Whereas, TA is known to inhibit enzyme activity, substrate deprivation, and interaction with membranes and matrix-metal ions. The developed In vitro co-cultured microcosm of B. subtilis and B. safensis was able to remove Cr(VI) up to 95% and TA up to 23%. The bacteria cultures separately were able to degrade Cr(VI) to 88% by B. subtilis and 91% by B. safensis and TA up to 27%. Plackett Burman design (PBD) followed by Response surface methodology (RSM) was applied for the optimization of physio-chemical parameters. The optimized conditions for co-culture development were recorded as K2HPO4 = 0.2 g/L, MgSO4 = 0.2 g/L, NH4Cl = 0.5 g/L, glucose - 0.2 g/L, TA - 5%, Cr = 200 ppm, incubation period of 96 h, agitation speed of 110 rpm, pH = 5.0, temperature= 30 °C and inoculum size = 3%. Scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) revealed the thorough mechanism of cellular uptake followed by degradation of Cr(VI) and TA. The efficiency of co-culture for other heavy metals was observed as follows: Zn 65%, Pb 63%, Cd 65%, and Ni 65%. Bioremediation using bacteria is an economical and environmentally better alternative to conventional remediation methods. The isolated bacteria are useful in the effluent treatment of tannery or related industries and in metal recovery in mining processes.
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Affiliation(s)
- Prachi Chaudhary
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India
| | - Vikas Beniwal
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India.
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran 11001, Saudi Arabia.
| | - Raman Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, India
| | - Priyanka Sharma
- Department of Environment Studies, Panjab University, Sector-14, Chandigarh 160014, India
| | - Anil Kumar
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar 125001, Haryana, India
| | - Yas Al-Hadeethi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Vinod Chhokar
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science & Technology, Hisar 125001, Haryana, India
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Wei W, Han X, Zhang M, Zhang Y, Zhang Y, Zheng C. Macromolecular humic acid modified nano-hydroxyapatite for simultaneous removal of Cu(II) and methylene blue from aqueous solution: Experimental design and adsorption study. Int J Biol Macromol 2020; 150:849-860. [DOI: 10.1016/j.ijbiomac.2020.02.137] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/11/2020] [Accepted: 02/13/2020] [Indexed: 12/30/2022]
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7
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Phallus impudicus loaded with γ-Fe2O3 as solid phase bioextractor for the preconcentrations of Zn(II) and Cr(III) from water and food samples. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.03.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Intrinsic acid resistance and high removal performance from the incorporation of nickel nanoparticles into nitrogen doped tubular carbons for environmental remediation. J Colloid Interface Sci 2020; 566:46-59. [DOI: 10.1016/j.jcis.2020.01.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/16/2020] [Accepted: 01/16/2020] [Indexed: 12/25/2022]
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9
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Tu B, Wen R, Wang K, Cheng Y, Deng Y, Cao W, Zhang K, Tao H. Efficient removal of aqueous hexavalent chromium by activated carbon derived from Bermuda grass. J Colloid Interface Sci 2020; 560:649-658. [DOI: 10.1016/j.jcis.2019.10.103] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/21/2019] [Accepted: 10/27/2019] [Indexed: 12/30/2022]
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10
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Xie H, Ma D, Liu W, Chen Q, Zhang Y, Huang J, Zhang H, Jin Z, Luo T, Peng F. Zr-Based MOFs as new photocatalysts for the rapid reduction of Cr(vi) in water. NEW J CHEM 2020. [DOI: 10.1039/d0nj00457j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydroxyl modified Zr-based MOFs is used for photocatalytic reduction of hexavalent chromium existing in wastewater.
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Affiliation(s)
- Haimei Xie
- College of Chemistry and Chemical Engineering
- Anhui University
- Hefei
- P. R. China
| | - Duomou Ma
- College of Chemistry and Chemical Engineering
- Anhui University
- Hefei
- P. R. China
| | - Wanyan Liu
- Anhui Key Laboratory of Water Pollution Control and Wastewater Resource
- Anhui Jianzhu University
- Hefei
- P. R. China
- School of Environment and Energy Engineering
| | - Qian Chen
- College of Chemistry and Chemical Engineering
- Anhui University
- Hefei
- P. R. China
| | - Yong Zhang
- Anhui Key Laboratory of Water Pollution Control and Wastewater Resource
- Anhui Jianzhu University
- Hefei
- P. R. China
- School of Environment and Energy Engineering
| | - Jian Huang
- Anhui Key Laboratory of Water Pollution Control and Wastewater Resource
- Anhui Jianzhu University
- Hefei
- P. R. China
- School of Environment and Energy Engineering
| | - Hua Zhang
- Anhui Key Laboratory of Water Pollution Control and Wastewater Resource
- Anhui Jianzhu University
- Hefei
- P. R. China
- School of Environment and Energy Engineering
| | - Zhen Jin
- School of Materials and Chemical Engineering
- Anhui Jianzhu University
- Hefei
- P. R. China
| | - Tao Luo
- Anhui Key Laboratory of Water Pollution Control and Wastewater Resource
- Anhui Jianzhu University
- Hefei
- P. R. China
- School of Environment and Energy Engineering
| | - Fumin Peng
- College of Chemistry and Chemical Engineering
- Anhui University
- Hefei
- P. R. China
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11
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Nejadshafiee V, Islami MR. Intelligent-activated carbon prepared from pistachio shells precursor for effective adsorption of heavy metals from industrial waste of copper mine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:1625-1639. [PMID: 31755054 DOI: 10.1007/s11356-019-06732-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/10/2019] [Indexed: 05/23/2023]
Abstract
A novel and efficient bio-adsorbent based on magnetic activated carbon nanocomposites (MAC NCs)-modified by sulfamic acid (H3NSO3) has been developed from pistachio shell precursor as agricultural by-products and then was applied for heavy metal removal. Design an experimental model (Central Composite Design (CCD)) for adopting surface response could efficiently be used for adsorption process, and it is an economical way of obtaining the optimal adsorption conditions based on the limited number of experiments. The variants of adsorbent dosage, metal ion concentration, and contact time were optimized for Cu(II) metal by CCD. In addition, adsorption capacity and isoelectric point (pHzpc) of adsorbent were studied at different pH values. Kinetic and isotherm of adsorption were investigated via the Langmuir and the pseudo-second-order model. The maximum adsorption capacity using the Langmuir model was 277.77 mg g-1 for Cu(II) ions on H2NSO3-MAC NCs. Then adsorption process was investigated for ions of Fe(II), Zn(II), and Ni(II) under optimized condition. Also, the competitive adsorption of Fe(II), Zn(II), and Ni(II) ions mixed solution onto H2NSO3-MAC NCs was conducted. Adsorption-desorption results exhibited that the H2NSO3-MAC NCs can be used up to seven cycles while they have excellent performance. Finally, to evaluate the efficiency of this bio-adsorbent, the removal of heavy metals from wastewater of the Sarcheshmeh copper mine as a real sample was studied. Graphical abstract.
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Affiliation(s)
- Vajihe Nejadshafiee
- Chemistry Department, Shahid Bahonar University of Kerman, Kerman, 76169, Iran.
- Central Lab, Shahid Bahonar University of Kerman, Kerman, 76169, Iran.
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Zhao Y, Lu W, Liu Y, Wang J, Zhou S, Mao Y, Li G, Deng Y. Efficient total nitrogen removal from wastewater by Paracoccus denitrificans DYTN-1. Lett Appl Microbiol 2019; 70:263-273. [PMID: 31879967 DOI: 10.1111/lam.13268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/26/2019] [Accepted: 12/20/2019] [Indexed: 01/20/2023]
Abstract
Bioaugmentation is an effective treatment method to reduce nitrogenous pollutants from wastewater. A strain of DYTN-1, which could effectively remove TN from sewage, was isolated from the sludge of a wastewater treatment plant and was identified as Paracoccus denitrificans. The TN in wastewater reduced to <20 mg l-1 within 12 h under optimal conditions by free cells of P. denitrificans DYTN-1. To enhance the removal of TN, P. denitrificans DYTN-1 cells were immobilized in sodium alginate (SA) using different divalent metal ions as cross-linking agents. It was found that the immobilized P. denitrificans DYTN-1 cells could reduce the TN concentration from 100 to below 20 mg l-1 within 8 h. After the optimization of an orthogonal experiment, the immobilized P. denitrificans DYTN-1 cells could reduce the TN concentration from 100 mg l-1 to below 20 mg l-1 within 1 h and significantly reduce the fermentation cycle. These findings would provide an economical and effective method for the removal of total nitrogen in wastewater by immobilized cells of P. denitrificans DYTN-1. SIGNIFICANCE AND IMPACT OF THE STUDY: We identified a new Paracoccus denitrificans strain (DYTN-1) for removal of the total nitrogen in wastewater. The total nitrogen could be removed effectively by P. denitrificans DYTN-1 within 12 h in wastewater. Using sodium alginate as the carrier and Ba2+ as cross-linking agent, the immobilized P. denitrificans DYTN-1 cells could improve the removal efficiency of total nitrogen in wastewater and significantly reduce the fermentation cycle. The assay has provided an economical and effective method for the removal of total nitrogen in wastewater by immobilized cell.
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Affiliation(s)
- Y Zhao
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - W Lu
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Y Liu
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing, China
| | - J Wang
- China-Canada Joint Lab of Food Nutrition and Health (Beijing), Beijing Technology & Business University, Beijing, China
| | - S Zhou
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Y Mao
- School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - G Li
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Y Deng
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China.,School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China.,Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
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Yang X, Xu G, Yu H. Removal of lead from aqueous solutions by ferric activated sludge-based adsorbent derived from biological sludge. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.04.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
In this study, Grewia spp. biopolymer was utilized as a biosorbent for elimination of hexavalent chromium from water. Fourier-transform infrared spectrometry (FTIR) and X-ray diffraction (XRD) were performed for characterization of the biosorbent. Experiments were conducted in a batch mode at room temperature (25 ± 2°C) and agitation speed of 100 rpm to determine the influence of biosorbent dose, contact time, Cr(VI) concentration, and initial solution pH. It was found that equilibrium was attained in 50 min. A pseudo-first-order model suited well than a pseudo-second-order model. Biosorption capacity of Grewia spp. biopolymer increased with increase in concentration and depended on the solution pH. Langmuir and Freundlich models described experimental data very well. These findings showed that Grewia spp. biopolymer can serve as a biosorbent for elimination of Cr(VI) from water.
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16
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H3PO4-Activated Cattail Carbon Production and Application in Chromium Removal from Aqueous Solution: Process Optimization and Removal Mechanism. WATER 2018. [DOI: 10.3390/w10060754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Facile synthesis and characterization of γ-AlOOH/PVA composite granules for Cr(VI) adsorption. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.11.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Adsorption and kinetic studies on the removal of chromium and copper onto Chitosan-g-maliec anhydride-g-ethylene dimethacrylate. Int J Biol Macromol 2017; 104:1578-1585. [DOI: 10.1016/j.ijbiomac.2017.01.142] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/12/2017] [Accepted: 01/31/2017] [Indexed: 11/23/2022]
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19
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Preparation of a Thermally Modified Diatomite and a Removal Mechanism for 1-Naphthol from Solution. WATER 2017. [DOI: 10.3390/w9090651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Luo L, Cai W, Zhou J, Li Y. Facile synthesis of boehmite/PVA composite membrane with enhanced adsorption performance towards Cr(VI). JOURNAL OF HAZARDOUS MATERIALS 2016; 318:452-459. [PMID: 27450337 DOI: 10.1016/j.jhazmat.2016.07.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 06/25/2016] [Accepted: 07/06/2016] [Indexed: 06/06/2023]
Abstract
A novel boehmite/PVA composite membrane (BPCM) with remarkably enhanced adsorption performance towards Cr(VI) was successfully synthesized from Al(NO3)3·9H2O using HAc as the peptizing agent via a facile sol-gel method. The physicochemical properties of the BPCM, the boehmite powder (BP) without PVA and a commercial boehmite powder (CBP) were comparatively characterized by XRD, TGA-DSC, FT-IR and XPS. Batch adsorption experiments showed that the adsorption performance of the BPCM is much better than those of BP and CBP. Its adsorption process was well described by the pseudo-second-order kinetic model, and its equilibrium data fit the Langmuir isotherm well with a maximum adsorption capacity of 36.41mgg(-1). Its interference adsorption experiment in presence of coexisting anions showed that SO4(2-) and HPO4(2-) have greater effect than those of the Cl(-), F(-), C2O4(2-) and HCO3(-). A three step action mechanism including adsorption of Cr(VI) anions, complexation between Cr(VI) anions and the functional groups on the surface of BPCM, and the reduction of Cr(VI) to Cr(III) was proposed to illustrate the adsorption process. This efficient film could be easily separated after adsorption, exhibiting great potential for the removal of Cr(VI) from aqueous solution, and other fields of environmental remediation.
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Affiliation(s)
- Lei Luo
- School of Chemistry, Chemical Engineering and Life Sciences, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, PR China
| | - Weiquan Cai
- School of Chemistry, Chemical Engineering and Life Sciences, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, PR China.
| | - Jiabin Zhou
- School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Yuanzhi Li
- School of Chemistry, Chemical Engineering and Life Sciences, State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, PR China
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Combination of advanced oxidation processes and active carbons adsorption for the treatment of simulated saline wastewater. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.07.026] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Dahlan NA, Ng SL, Pushpamalar J. Adsorption of methylene blue onto powdered activated carbon immobilized in a carboxymethyl sago pulp hydrogel. J Appl Polym Sci 2016. [DOI: 10.1002/app.44271] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nuraina Anisa Dahlan
- School of Science; Monash University Malaysia; Jalan Lagoon Selatan 47500 Bandar Sunway, Subang Jaya, Selangor Malaysia
| | - Si Ling Ng
- School of Science; Monash University Malaysia; Jalan Lagoon Selatan 47500 Bandar Sunway, Subang Jaya, Selangor Malaysia
- School of Chemical Sciences; Universiti Sains Malaysia; 11800 Universiti Sains Malaysia Penang Malaysia
| | - Janarthanan Pushpamalar
- School of Science; Monash University Malaysia; Jalan Lagoon Selatan 47500 Bandar Sunway, Subang Jaya, Selangor Malaysia
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23
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Three-dimensional composite hydrogel based on polyamine zirconium oxide, alginate and tannic acid with high performance for Pb(Ⅱ), Hg(Ⅱ) and Cr(Ⅵ) trapping. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.05.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Fan R, Yi Q, Xie Y, Xie F, Zhang Q, Luo Z. Enhanced adsorption and recovery of Pb(II) from aqueous solution by alkali-treated persimmon fallen leaves. J Appl Polym Sci 2016. [DOI: 10.1002/app.43656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ruiyi Fan
- Key Laboratory of Horticultural Plant Biology; Huazhong Agricultural University; Wuhan 430070 China
| | - Qingping Yi
- Key Laboratory of Horticultural Plant Biology; Huazhong Agricultural University; Wuhan 430070 China
- College of Bioengineering; Jingchu University of Technology; Jingmen 448000 China
| | - Yucong Xie
- Key Laboratory of Horticultural Plant Biology; Huazhong Agricultural University; Wuhan 430070 China
| | - Feng Xie
- Institute of Horticultural Sciences; Jiangxi Academy of Agricultural Sciences; Nanchang 330200 China
| | - Qinglin Zhang
- Key Laboratory of Horticultural Plant Biology; Huazhong Agricultural University; Wuhan 430070 China
- Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains; Huanggang Hubei 438000 China
| | - Zhengrong Luo
- Key Laboratory of Horticultural Plant Biology; Huazhong Agricultural University; Wuhan 430070 China
- Hubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie Mountains; Huanggang Hubei 438000 China
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25
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Wang K, Qiu G, Cao H, Jin R. Removal of Chromium(VI) from Aqueous Solutions Using Fe₃O₄ Magnetic Polymer Microspheres Functionalized with Amino Groups. MATERIALS 2015; 8:8378-8391. [PMID: 28793717 PMCID: PMC5458844 DOI: 10.3390/ma8125461] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 12/02/2022]
Abstract
Magnetic polymer microspheres (MPMs) using glycidylmethacrylate (GMA) as a functional monomer were synthesized in the presence of Fe3O4 nanoparticles via dispersion polymerization. After polymerization, the magnetic polymer microbeads were modified with ethylenediamine (EDA). The obtained ethylenediamine-functionalized magnetic microspheres (EDA-MPMs) were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), vibrating-sample magnetometer (VSM) and Fourier transform infrared (FT-IR) spectroscopy. Then the EDA-MPMs were applied as adsorbents for the removal of Cr(VI) from aqueous solution. Langmuir equation was appropriate to describe the experimental data. The maximum adsorption capacities obtained from the Langmuir model were 236.9, 242.1 and 253.2 mg/g at 298, 308 and 318 K, respectively. The Cr(VI) adsorption equilibrium was established within 120 min and the adsorption kinetics was compatibly described by the pseudo-second order equation. The thermodynamic parameters (ΔG°, ΔH°, ΔS°) of the sorption process revealed that the adsorption was spontaneous and was an endothermic process. The regeneration study demonstrated that the EDA-MPMs could be repeatedly utilized with no significant loss of adsorption efficiency.
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Affiliation(s)
- Kai Wang
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, China.
| | - Guangming Qiu
- College of Energy and Power Engineering, Inner Mongolia University of Technology, Huhhot 010051, China.
| | - Hongyu Cao
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, China.
| | - Ruifa Jin
- Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, China.
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26
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Zhang YJ, Ou JL, Duan ZK, Xing ZJ, Wang Y. Adsorption of Cr(VI) on bamboo bark-based activated carbon in the absence and presence of humic acid. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.04.050] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Xu G, Yang X, Spinosa L. Development of sludge-based adsorbents: preparation, characterization, utilization and its feasibility assessment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 151:221-32. [PMID: 25577702 DOI: 10.1016/j.jenvman.2014.08.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/31/2014] [Accepted: 08/01/2014] [Indexed: 05/09/2023]
Abstract
The increasing generation of sludge and its subsequent treatment are very sensitive environmental problems. For a more stable and sustainable treatment of sludge, there have been many studies, including the conversion of sludge into sludge-based adsorbents (SBAs) for pollutants removal. In this review, current SBAs preparation conditions and use as adsorbent for contaminant removal in water treatment are summarized and discussed. Carbonization, physical activation and chemical activation are three common preparation methods. The controlling key parameters include pyrolysis temperature, dwell time, heating rate, activator and feedstock type. The efficacy of SBAs in contaminant adsorption depends on their surface area, pore size distribution, surface functional groups and ion-exchange capacity. It has been demonstrated that SBAs can attain high uptakes of dyes and metal ions due to their high cation exchange capacity; whereas the strong antibiotics adsorption performance of SBAs derives from high degree of mesoporosity. In addition, thermal treatment significantly stabilizes heavy metals contained in sludge. The paper also discusses the economic feasibility and environmental safety of preparation and application of SBAs. Further research will include investigations on the migration and transformation of element in sludge by thermal treatment, more economical and efficient chemical activation reagents, obtaining SBAs for designated application, combination of coagulation and SBAs adsorption, regeneration of SBAs and full-scale tests.
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Affiliation(s)
- Guoren Xu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Xin Yang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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28
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Mahmoud MR, Lazaridis NK. Simultaneous Removal of Nickel(II) and Chromium(VI) from Aqueous Solutions and Simulated Wastewaters by Foam Separation. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2014.978456] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Sahiner N, Sagbas S, Aktas N. Very fast catalytic reduction of 4-nitrophenol, methylene blue and eosin Y in natural waters using green chemistry: p(tannic acid)–Cu ionic liquid composites. RSC Adv 2015. [DOI: 10.1039/c5ra00126a] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Using tannic acid (TA) as a biopolymer, poly(tannic Acid) (p(TA)) microgels were obtained by cross-linking TA with trimethylolpropane triglycidyl ether (TMPGDE) as cross-linker in a water-in-oil micro emulsion system.
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Affiliation(s)
- Nurettin Sahiner
- Faculty of Science & Arts
- Chemistry Department
- Canakkale Onsekiz Mart University
- 17100 Canakkale
- Turkey
| | - Selin Sagbas
- Faculty of Science & Arts
- Chemistry Department
- Canakkale Onsekiz Mart University
- 17100 Canakkale
- Turkey
| | - Nahit Aktas
- Chemical Engineering Department
- Yuzuncu Yil University
- Van
- Turkey
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30
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He X, Cheng L, Wang Y, Zhao J, Zhang W, Lu C. Aerogels from quaternary ammonium-functionalized cellulose nanofibers for rapid removal of Cr(VI) from water. Carbohydr Polym 2014; 111:683-7. [DOI: 10.1016/j.carbpol.2014.05.020] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 04/09/2014] [Accepted: 05/03/2014] [Indexed: 10/25/2022]
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31
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Zero valent iron-brick grain nanocomposite for enhanced solar-Fenton removal of malachite green. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.07.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Li WG, Gong XJ, Wang K, Zhang XR, Fan WB. Adsorption characteristics of arsenic from micro-polluted water by an innovative coal-based mesoporous activated carbon. BIORESOURCE TECHNOLOGY 2014; 165:166-173. [PMID: 24631151 DOI: 10.1016/j.biortech.2014.02.069] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 06/03/2023]
Abstract
An innovative coal-based mesoporous activated carbon (NCPAC) was prepared by re-agglomeration, oxidation and two-step activation using coal-blending as precursor. Adsorption capacities of As(III) and As(V) ions (<0.5mg/L) onto NCPAC as a function of pH, adsorbent dose, initial arsenic concentrations, contact time, and adsorption isotherms at 7°C was investigated. The innovative methods promoted total pore volume (1.087cm(3)/g), mesoporosity (64.31%), iodine numbers (1104mg/g), methylene blue (251.8mg/g) and ash contents (15.26%). The adsorption capacities of NCPAC for As(III) and As(V) were found to be strongly dependent on pH and contact time. The optimal pH value was 6. The equilibrium time was 60min for adsorption of As(III) and As(V) by NCPAC. The Langmuir model fitted the experimental data well for both As(III) (R(2)=0.9980) and As(V) (R(2)=0.9988). Maximum adsorption capacities of As(III) and As(V) (C0=0.50mg/L) by NCPAC were 1.491 and 1.760mg/g, respectively.
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Affiliation(s)
- Wei-Guang Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Xu-Jin Gong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China; School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Ke Wang
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xin-Ran Zhang
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Wen-Biao Fan
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China.
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33
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34
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Gong X, Li W, Wang K, Hu J. Study of the adsorption of Cr(VI) by tannic acid immobilised powdered activated carbon from micro-polluted water in the presence of dissolved humic acid. BIORESOURCE TECHNOLOGY 2013; 141:145-151. [PMID: 23453800 DOI: 10.1016/j.biortech.2013.01.166] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 01/29/2013] [Accepted: 01/31/2013] [Indexed: 06/01/2023]
Abstract
The adsorption of Cr(VI) (0.500 mg/L) onto food-grade tannic-acid immobilised powdered activated carbon (TA-PAC) in the presence of dissolved humic acid (DHA) was investigated at 280 K as a function of pH, along with the adsorption capacities and the adsorption isotherms for chromium ions. The results showed that the presence of DHA improved the adsorption capacities of Cr(VI) and its reduction product (Cr(III)) over a wide pH range (4.0-8.0). The main mechanism for metal-DHA complexation in the Cr(VI) system was the reduction of Cr(VI) followed by complexation between Cr(III) and DHA. The Freundlich isotherms yielded the best fits to all data (R(2)=0.9951, qm=5.639 mg/g) in the presence of DHA. The adsorption mechanisms of Cr(VI) onto TA-PAC in the presence of DHA were summarized into three categories: (i) binding by anion adsorption, (ii) Cr(VI) reduction followed by Cr(III) adsorption, and (iii) adsorption of Cr(III)-DHA complexes.
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Affiliation(s)
- Xujin Gong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
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35
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Zhang D, Li W, Huang X, Qin W, Liu M. Removal of ammonium in surface water at low temperature by a newly isolated Microbacterium sp. strain SFA13. BIORESOURCE TECHNOLOGY 2013; 137:147-152. [PMID: 23584414 DOI: 10.1016/j.biortech.2013.03.094] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 03/09/2013] [Accepted: 03/13/2013] [Indexed: 06/02/2023]
Abstract
The strain SFA13, isolated from Songhua River, demonstrates ability to convert ammonium to nitrogen under aerobic conditions at low temperature. On the basis of 16S rRNA gene sequence, the strain SFA13 was a species in genera Microbacterium. The isolate showed unusual ability of autotrophic nitrification with the ratio of 0.11 mg NH4(+)-N/L/h at 5°C. Ammonium was consumed by the strain SFA13 with the biodegradation of organic carbon and without nitrite or nitrate accumulation. NO3(-)-N or NO2(-)-N was reduced by the strain SFA13. The denitrification ratio was 0.24mgNO3(-)-N/L/h. Hydroxylamine oxidase, nitrite reductase and nitrate reductase were detectable. The putative nitrogen removal process by the strain SFA13 was as follows: NH4(+)→NH2OH→NO2(-)→NO3(-), then NO3(-)→NO2(-)→N2. Biological activated carbon attached with the strain SFA13 could effectively remove ammonium in surface water with the rate of 2.68±0.27-3.16±0.25 mg NH4(+)-N/L/h at C/N 2-10, temperature 10°C, and DO>5.2 mg/L.
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Affiliation(s)
- Duoying Zhang
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, PR China
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36
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Foo KY, Lee LK, Hameed BH. Preparation of tamarind fruit seed activated carbon by microwave heating for the adsorptive treatment of landfill leachate: A laboratory column evaluation. BIORESOURCE TECHNOLOGY 2013; 133:599-605. [PMID: 23501142 DOI: 10.1016/j.biortech.2013.01.097] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/15/2013] [Accepted: 01/20/2013] [Indexed: 06/01/2023]
Abstract
The preparation of tamarind fruit seed granular activated carbon (TSAC) by microwave induced chemical activation for the adsorptive treatment of semi-aerobic landfill leachate has been attempted. The chemical and physical properties of TSAC were examined. A series of column tests were performed to determine the breakthrough characteristics, by varying the operational parameters, hydraulic loading rate (5-20 mL/min) and adsorbent bed height (15-21 cm). Ammonical nitrogen and chemical oxygen demand (COD), which provide a prerequisite insight into the prediction of leachate quality was quantified. Results illustrated an encouraging performance for the adsorptive removal of ammonical nitrogen and COD, with the highest bed capacity of 84.69 and 55.09 mg/g respectively, at the hydraulic loading rate of 5 mL/min and adsorbent bed height of 21 cm. The dynamic adsorption behavior was satisfactory described by the Thomas and Yoon-Nelson models. The findings demonstrated the applicability of TSAC for the adsorptive treatment of landfill leachate.
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Affiliation(s)
- K Y Foo
- Environment and Occupational Health Programme, School of Health Sciences, Health Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia.
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37
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Jung C, Heo J, Han J, Her N, Lee SJ, Oh J, Ryu J, Yoon Y. Hexavalent chromium removal by various adsorbents: Powdered activated carbon, chitosan, and single/multi-walled carbon nanotubes. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2012.12.028] [Citation(s) in RCA: 197] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Foo KY, Hameed BH. Utilization of oil palm biodiesel solid residue as renewable sources for preparation of granular activated carbon by microwave induced KOH activation. BIORESOURCE TECHNOLOGY 2013; 130:696-702. [PMID: 23334029 DOI: 10.1016/j.biortech.2012.11.146] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 11/09/2012] [Accepted: 11/30/2012] [Indexed: 06/01/2023]
Abstract
In this work, preparation of granular activated carbon from oil palm biodiesel solid residue, oil palm shell (PSAC) by microwave assisted KOH activation has been attempted. The physical and chemical properties of PSAC were characterized using scanning electron microscopy, volumetric adsorption analyzer and elemental analysis. The adsorption behavior was examined by performing batch adsorption experiments using methylene blue as dye model compound. Equilibrium data were simulated using the Langmuir, Freundlich and Temkin isotherm models. Kinetic modeling was fitted to the pseudo-first-order, pseudo-second-order and Elovich kinetic models, while the adsorption mechanism was determined using the intraparticle diffusion and Boyd equations. The result was satisfactory fitted to the Langmuir isotherm model with a monolayer adsorption capacity of 343.94mg/g at 30°C. The findings support the potential of oil palm shell for preparation of high surface area activated carbon by microwave assisted KOH activation.
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Affiliation(s)
- K Y Foo
- School of Chemical Engineering, Engineering Campus, Universit Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
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39
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Punyapalakul P, Suksomboon K, Prarat P, Khaodhiar S. Effects of Surface Functional Groups and Porous Structures on Adsorption and Recovery of Perfluorinated Compounds by Inorganic Porous Silicas. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.710888] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Liu X, Qian X, Shen J, Zhou W, An X. An integrated approach for Cr(VI)-detoxification with polyaniline/cellulose fiber composite prepared using hydrogen peroxide as oxidant. BIORESOURCE TECHNOLOGY 2012; 124:516-519. [PMID: 23010214 DOI: 10.1016/j.biortech.2012.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 08/28/2012] [Accepted: 09/01/2012] [Indexed: 06/01/2023]
Abstract
In this short communication, the demonstration of a new integrated process concept involving the use of a bio-based material for detoxification of Cr(VI)-contaminated water is presented. Specifically, the bio-based material is a polyaniline/cellulose fiber composite prepared by in situ polymerization of aniline in the presence of cellulose fibers, using the industrially favorable hydrogen peroxide (instead of costly oxidants such as ammonium persulfate) as the oxidant. Ferric chloride was used to catalyze the polymerization reaction. The process conditions for the preparation of the composite were preliminarily optimized, and the proposed concept was demonstrated. Under the conditions studied, the use of the composite was quite effective in the detoxification of the model solution. The proposed concept may serve as an alternative approach for water treatment using renewable materials.
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Affiliation(s)
- Xiangyao Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
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