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Ren J, Guo H, Wang Z, Ling G, Han J, Ren RP, Yongkang-Lv. Engineering of single atomic Fe-N 4 sites on hollow carbon cages to achieve highly reversible MoS 2 anodes for Li-ion batteries. J Colloid Interface Sci 2024; 664:45-52. [PMID: 38458054 DOI: 10.1016/j.jcis.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/03/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Although the single atom electrocatalysts have been demonstrated as efficient catalysts for promoting Li2S/Na2S formation and decomposition in Li-S/Na-S batteries, the functional morphological and structural engineering capable of exposing more active sites is regarded as an essential factor to further enhance the catalytic activity. Here, we have synthesized a single atomically dispersed Fe sites embedded within hollow nitrogen doped carbon cages (Fe-N-HCN) using Fe3O4 spheres as an oxidant and sacrificial template, which is used as a high-efficiency catalyst for boosting the reversible capacity of MoS2 anode in lithium-ion batteries (LIBs). As expected, the electrochemical reaction of MoS2/Fe-N-HCN anode exhibits higher reversibility than pure MoS2 electrodes. Moreover, density functional theory is also employed to reveal that Fe-N-HCN can be effectively adsorbed and catalyze the rapid decomposition of Li2S. The hollow carbon cage structure can facilitate the exposure of the active Fe-N4 sites and favor the mass transfer during the electrochemical reactions, thus the synergistic effect of the Fe-N4 site and the hollow carbon cage structure together improve the catalytic activity for the conversion reaction of MoS2 anode.
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Affiliation(s)
- Jing Ren
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, China
| | - Hao Guo
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Zihan Wang
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China
| | - Guoqiang Ling
- College of Chemistry, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jianqiang Han
- School of Semiconductor and Physics, North University of China, Taiyuan 030051, China.
| | - Rui-Peng Ren
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030017, China.
| | - Yongkang-Lv
- State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030017, China
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2
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Lv JY, Ren RP, Lv YK. A theoretical study on the mechanism of conversion of C 3H 8 and CO 2 to C 3H 6 and HCOOH by M 4–B 24N 28 catalysis. NEW J CHEM 2022. [DOI: 10.1039/d2nj00522k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we explored the reaction mechanism of metallic copper-doped modified aperiodic (BN)28 nanocages for the catalytic oxidation of propane with carbon dioxide. The DFT calculation is performed on all possible paths during the reaction process.
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Affiliation(s)
- Jia-Yuan Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, 87 Zhengyang Street, Xiaodian District, Taiyuan, Shanxi, China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, 87 Zhengyang Street, Xiaodian District, Taiyuan, Shanxi, China
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3
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Wang W, Ren RP, Lv YK. Size-dependence of fullerene-like confinement in catalytic methanol cracking. NEW J CHEM 2022. [DOI: 10.1039/d2nj03053e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, the cracking mechanism of CH3OH on fullerene-like surfaces of different sizes is investigated by DFT. The study shows that the activity of CH3OH cracking decreases with the increase of Cu@CnB8 size.
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Affiliation(s)
- Wannan Wang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030024, Shanxi, China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030024, Shanxi, China
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Wu LJ, Li XX, Zhou Q, Yang F, Ren RP, Lyu YK. Towards the understanding of hyperthermophilic methanogenesis from waste activated sludge at 70 °C: Performance, stability, kinetic and microbial community analyses. Waste Manag 2021; 125:172-181. [PMID: 33689991 DOI: 10.1016/j.wasman.2021.02.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/27/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion is promising for waste activated sludge (WAS) degradation. However, conventional processes were generally stuck with limited hydrolysis and poor pathogen destruction. Hyperthermophilic digestion at 70 °C has drawn attention in overcoming those issues at a relatively low energy requirement and operating difficulties. In order to illuminate its operation characteristics, a single-stage hyperthermophilic digester was controlled at 70 °C and operated continuously to degrade WAS. 88.7 mL/g VSadded of methane yield could be achieved in the hyperthermophilic system, fourfold higher than that in the mesophilic system. Kinetic analysis revealed that hyperthermophilic digestion was advantageous in converting the non-degradable fraction. Consequently, hydrolysis under the hyperthermophilic condition was able to be significantly improved. Above 10 d was necessary for the hyperthermophilic system to gain such a high methane production. In the case of stability, the organic loading of higher than 10.2 g VS/L/d resulted in increasing limitation from methanogenesis and accumulation of propionic, butyric and valeric acids. In addition to the dominant acetoclastic genus Methanothrix for methane production in the hyperthermophilic system, two hydrogenotrophic methanogens Methanospirillum and Methanothermobacter reached 18.84% and 8.31%, respectively. The genus Coprothermobacter, affiliated with the phylum Firmicutes, made more contribution to protein hydrolysis in the hyperthermophilic digester.
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Affiliation(s)
- Li-Jie Wu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Xiao-Xiao Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Quan Zhou
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Fan Yang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yong-Kang Lyu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
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Yang JR, Wang Y, Chen H, Ren RP, Lv YK. A new approach for the effective removal of NO x from flue gas by using an integrated system of oxidation-absorption-biological reduction. J Hazard Mater 2021; 404:124109. [PMID: 33049641 DOI: 10.1016/j.jhazmat.2020.124109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/03/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
A new process of NOx removal from flue gas, using an integrated system of oxidation-absorption-biological reduction (OABR), is introduced. The experimental results show that increasing the NOx oxidation ratio in flue gas can effectively improve the NOx removal efficiency of the OABR system. The NOx removal efficiency could reach 98.8% with 0.02 M NaHCO3 as the chemical absorbent and under the condition of the optimal NOx oxidation ratio of 50%. During stable operation, the OABR system could maintain a high NOx removal efficiency (above 94%) under the following conditions: 1-8 vol% (104-8 × 104 ppmv) O2, 200-800 ppmv NOx, 0.5-1.5 L/min gas flow rate and 100-800 ppmv SO2. The nitrogen equilibrium results showed that about 59% of the nitrogen in the inlet NOx were transformed to N2 through microbial denitrification, 37% of the nitrogen were converted to biological nitrogen for microbial growth, and only 1.1% of the nitrogen remained in the liquid phase. This new approach has an excellent NOx removal performance and great potential for industrial application.
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Affiliation(s)
- Jing-Rui Yang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Ying Wang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Hu Chen
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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Wu LJ, Li XX, Liu YX, Yang F, Zhou Q, Ren RP, Lyu YK. Optimization of hydrothermal pretreatment conditions for mesophilic and thermophilic anaerobic digestion of high-solid sludge. Bioresour Technol 2021; 321:124454. [PMID: 33285502 DOI: 10.1016/j.biortech.2020.124454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Hydrothermal pretreatment (HTP) conditions were optimized for continuous mesophilic (MAD) and thermophilic (TAD) anaerobic digestion of high-solid sludge (10-11% total solids). COD solubilization increased with prolonged HTP durations, and became not significant after 210 min. According to the methane production rate and energy consumption, the optimal HTP temperature was determined at 160 °C. Regarding continuous operation without HTP, TAD achieved higher methane yield and volatile solids (VS) reduction, at 0.12 L/g VSadded and 23.9%, respectively. After HTP, methane yield and VS reduction in MAD and TAD were increased by 400% and 191% (MAD), 67% and 72% (TAD), respectively. TAD was limited due to the inhibition from about 2800 mg/L of NH4+-N concentration. The methanogenic activity of MAD was enhanced, whereas TAD displayed a reduced value owing to ammonia inhibition. Ultimately, MAD with HTP and TAD without HTP achieved the higher energy balance, 5.25 and 3.27 kJ/g VS, respectively.
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Affiliation(s)
- Li-Jie Wu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Xiao-Xiao Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yu-Xiang Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Fan Yang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Quan Zhou
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
| | - Yong-Kang Lyu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
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Wu LJ, Li XX, Yang F, Zhou Q, Ren RP, Lyu YK. One-step acquirement of superior microbial communities from mesophilic digested sludge to upgrade anaerobic digestion. Chemosphere 2021; 263:128047. [PMID: 33297060 DOI: 10.1016/j.chemosphere.2020.128047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/24/2020] [Accepted: 08/16/2020] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion is a promising waste-to-energy alternative technology. However, the efficiency upgrading for conventional mesophilic digestion of organic solid waste is always indispensable. Employing hyperthermophilic or thermophilic microbial community is one of the viable upgrading alternatives. Given the unavailability of the superior microbial communities, mesophilic digested sludge was used as inoculum, and instantly controlled at 70 °C and 55 °C for acclimation of hyperthermophilic and thermophilic inocula, respectively. Waste activated sludge was continuously and synchronously fed into two digesters. After one round, thermophilic digester achieved stable biogas production rate at 0.22 L L-1 d-1, with a methane proportion over 60%, whereas fluctuation was observed in the hyperthermophilic digester, and approximately triple time was needed to reach a relatively stable biogas production rate 0.12 L L-1 d-1. Nevertheless, higher hydrolysis ratio 24.4% was observed in the hyperthermophilic digester despite the lower biogas production. Therefore, methanogenesis step limited the whole anaerobic process for the hyperthermophilic digestion, and digestion at 70 °C was appropriate as a pre-fermentation stage to enhanced hydrolysis. The genus Methanothrix proportion in the thermophilic digester gradually decreased, while another acetoclastic genus Methanosarcina ultimately was acclimated to the dominant methanogen. In addition to Methanothrix, hydrogenotrophic archaea became competitive in the hyperthermophilic digester, with Methanothermobacter dominant at 22.6%. The genus Psychrobacter, affiliated to the phylum Proteobacteria could survive better than the others at 70 °C, with a final proportion of 62.5%.
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Affiliation(s)
- Li-Jie Wu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Xiao-Xiao Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Fan Yang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Quan Zhou
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yong-Kang Lyu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
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Wu LJ, Li XX, Qin ZF, Yang F, Zhou Q, Ren RP, Lyu YK. Establishment and differential performance of hyperthermophilic microbial community during anaerobic self-degradation of waste activated sludge. Environ Res 2020; 191:110035. [PMID: 32827519 DOI: 10.1016/j.envres.2020.110035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
Hyperthermophilic anaerobic digestion, especially at 70 °C, has drawn wide attention. In order to acquire the inoculum and digestion characteristics, batch acclimation and continuous operation experiments were conducted under hyperthermophilic (70 °C), thermophilic (55 °C) and mesophilic (35 °C) conditions, respectively. Archaea at each temperature was successfully enriched from the sole-source waste activated sludge (WAS). Hyperthermophilic digestion achieved higher archaea diversity, close to the Shannon index 2.23 for the thermophilic digestion, but the population were not improved, at a 16S rRNA genes 5.99 × 105 copies mL-1. Hydrogenotrophic methanogens, Methanospirillum and Methanothermobacter, dominated in the hyperthermophilic digester, accounting for 27.15%, while the primary phylum Firmicutes was promoted to 36.31%, with the proteolytic genus Coprothermobacter in Firmicutes at 19.50%. Refractory organic fractions were converted more with a higher digestion temperature, which was demonstrated by the fact that the COD/VS increased to 5.8, 5.2 and 4.2 at 70 °C, 55 °C and 35 °C, respectively, at the end of batch acclimation. In addition, the most solubilization for the dominant fraction protein in the WAS occurred at 70 °C as well. Similar hydrolysis ratio, over 10%, and specific hydrolysis rate, around 0.025 g COD (g VSS·d)-1, were achieved at 70 °C and 55 °C. The higher hydrolysis for hyperthermophilic digestion even resulted in a higher methane yield than that for the mesophilic digestion. Nevertheless, contrary to higher hydrolysis, methanogenesis limited hyperthermophilic digestion in WAS degradation, with an ultimate methane yield 71.2 mL g-1 VSadded, despite an almost complete VFA conversion through the continuous operation.
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Affiliation(s)
- Li-Jie Wu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Xiao-Xiao Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Zhi-Feng Qin
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Fan Yang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Quan Zhou
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yong-Kang Lyu
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, China
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Ren J, Ren RP, Lv YK. Hollow I-Cu2MoS4 nanocubes coupled with an ether-based electrolyte for highly reversible lithium storage. J Colloid Interface Sci 2020; 577:86-91. [DOI: 10.1016/j.jcis.2020.05.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 11/25/2022]
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Ren RP, Li W, Lv YK. A robust, superhydrophobic graphene aerogel as a recyclable sorbent for oils and organic solvents at various temperatures. J Colloid Interface Sci 2017; 500:63-68. [DOI: 10.1016/j.jcis.2017.01.071] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 10/20/2022]
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Wang Y, Chen H, Liu YX, Ren RP, Lv YK. An adsorption-release-biodegradation system for simultaneous biodegradation of phenol and ammonium in phenol-rich wastewater. Bioresour Technol 2016; 211:711-719. [PMID: 27060247 DOI: 10.1016/j.biortech.2016.03.149] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/21/2016] [Accepted: 03/25/2016] [Indexed: 06/05/2023]
Abstract
The feasibility of simultaneous biodegradation of phenol and ammonium in phenol-rich wastewater was evaluated in a reusable system, which contained macroporous adsorption resin and Alcaligenes faecalis strain WY-01. In the system, up to 6000mg/L phenol could be completely degraded by WY-01; meanwhile, 99.03±3.95% of ammonium was removed from the initial concentration of 384mg/L. This is the first study to show the capability of single strain in simultaneous removal of ammonium and phenol in wastewater containing such high concentrations of phenol. Moreover, the resin was regenerated during the biodegradation process without any additional manipulations, indicating the system was reusable. Furthermore, enzyme assay, gene expression patterns, HPLC-MS and gas chromatography analysis confirmed that phenol biodegradation accompanied with aerobic nitrifier denitrification process. Results imply that the reusable system provides a novel strategy for more efficient biodegradation of phenol and ammonium contained in some particular industrial wastewater.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Hu Chen
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yu-Xiang Liu
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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12
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Zhang YC, Ren RP, Liu SZ, Zuo ZJ, Lv YK. Theoretical study on the influence of a secondary metal on the Cu(110) surface in the presence of H2O for methanol decomposition. RSC Adv 2016. [DOI: 10.1039/c5ra18226c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Density functional theory calculations with the continuum solvation slab model are performed to investigate the effect of metal dopants on the Cu(110) surface in the presence of H2O for the methanol decomposition.
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Affiliation(s)
- Yong-Chao Zhang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Shi-Zhong Liu
- Department of Chemistry
- Stony Brook University
- New York 11794
- USA
| | - Zhi-Jun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
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13
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Zhang YC, Zuo ZJ, Ren RP, Lv YK. Insights into the effect of Pt doping of Cu(110)/H 2O for methanol decomposition: a density functional theory study. RSC Adv 2016. [DOI: 10.1039/c6ra09395g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Density functional theory calculations with the periodic slab model were performed to investigate the methanol decomposition mechanism with different ratios of Pt doped into Cu(110)/H2O surfaces.
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Affiliation(s)
- Yong-Chao Zhang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Zhi-Jun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
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14
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Wang Y, Chen H, Liu YX, Ren RP, Lv YK. Effect of temperature, salinity, heavy metals, ammonium concentration, pH and dissolved oxygen on ammonium removal by an aerobic nitrifier. RSC Adv 2015. [DOI: 10.1039/c5ra13318a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An aerobic nitrifier WY-01 was identified asAlcaligenes faecalisby its 16S rRNA gene sequence analysis. It could remove ammonium effectively in varying physico-chemical conditions, such as low temperature, high salinity and high ammonium loads.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Coal Science and Technology
- Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Hu Chen
- Key Laboratory of Coal Science and Technology
- Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yu-Xiang Liu
- College of Environmental Science and Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Rui-Peng Ren
- Key Laboratory of Coal Science and Technology
- Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology
- Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
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15
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Abstract
The sulfurized processes of H2S on dehydrated (100) and (110) as well as partially hydrated (110) surfaces of γ-Al2O3 were investigated using a periodic density functional theory method.
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Affiliation(s)
- Rui-Peng Ren
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Xiao-Wei Liu
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Zhi-Jun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Yong-Kang Lv
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| |
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