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He H, Li XL, Zhao BY, Liu XK, Zhou LJ, Zhao X, Wang CX, Wang L. Adsorption performance of ammonium molybdate modified Salix wood flour biochar for the treatment of monosodium glutamate wastewater. ENVIRONMENTAL TECHNOLOGY 2023:1-13. [PMID: 38118136 DOI: 10.1080/09593330.2023.2292548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/03/2023] [Indexed: 12/22/2023]
Abstract
ABSTRACTThe problem of wastewater pollution in the production of monosodium glutamate (MSG) is becoming more and more serious. A novel type of chemically modified Salix psammophila powder charcoal (SPPCAM) was synthesized to address the chemical oxygen demand (COD) and ammonia nitrogen (NH3-N) in MSG wastewater. SPPCAM was prepared by carbonization method, in which inorganic ammonium molybdate (AM) was used as modifier and Salix psammophila powder (SPP) was used as raw material. Under optimal treatment conditions, maximum removal rates (removal capacities) of 45.9% (3313.2 mg·L-1) for COD and 29.4% (23.2 mg·L-1) for NH3-N in MSG wastewater were achieved. The treatment results significantly outperforming the unmodified Salix psammophila powder charcoal (SPPC), which only achieved removal rates (removal capacities) of 10.6% (763.9 mg·L-1) for COD and 12.9% (10 mg·L-1) for NH3-N. SPPC and SPPCAM before and after preparation were analysed by FT-IR and XRD, and Mo ions in the form of Mo2C within SPPCAM were successfully loaded. SEM, EDS-Mapping, BET, and other methods were used to analyse SPPCAM before and after MSG wastewater treatment, demonstrating that SPPCAM effectively treated organic pollutants in monosodium glutamate wastewater. The NH3-N in the treated MSG wastewater has reached the standard of safe discharge.
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Affiliation(s)
- Hao He
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Xi-Lin Li
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Bai-Yun Zhao
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Xiao-Kai Liu
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Li-Juan Zhou
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Xuan Zhao
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Chen-Xu Wang
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
| | - Li Wang
- School of Materials Science and Art and Design, Inner Mongolia Agricultural University, Hohhot, China
- Laboratory of Fibrosis and Energy Utilization of Shrubby Resources in China Inner Mongolia Autonomous Region, Hohhot, China
- China Hohhot National Forestry Grassland Engineering Technology Research Center for Efficient Development and Utilization of Sandy Shrubs, Hohhot, China
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Chibani A, Ncib S, Barhoumi A, Bouguerra W, Elaloui E. Box-Behnken design optimization of sulfate reduction from natural water by electrocoagulation process. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2134372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Amel Chibani
- Department of Chemistry, Faculty of Sciences of Gafsa, Sidi Ahmed Zarroug, Gafsa, Tunisia
| | - Sana Ncib
- Laboratory of Materials Application to Water, Environment and Energy (LAM3E), (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Afef Barhoumi
- Laboratory of Materials Application to Water, Environment and Energy (LAM3E), (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Wided Bouguerra
- Department of Chemistry, Faculty of Sciences of Gafsa, Sidi Ahmed Zarroug, Gafsa, Tunisia
- Laboratory of Materials Application to Water, Environment and Energy (LAM3E), (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Elimame Elaloui
- Department of Chemistry, Faculty of Sciences of Gafsa, Sidi Ahmed Zarroug, Gafsa, Tunisia
- Laboratory of Materials Application to Water, Environment and Energy (LAM3E), (LR21ES15), Faculty of Sciences of Gafsa, University of Gafsa, Gafsa, Tunisia
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Lu J, Zhang P, Li J. Electrocoagulation technology for water purification: An update review on reactor design and some newly concerned pollutants removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 296:113259. [PMID: 34256295 DOI: 10.1016/j.jenvman.2021.113259] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/30/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
Water shortage and quality deterioration are plaguing people all over the world. Providing sustainable and affordable treatment solutions to these problems is a need of the hour. Electrocoagulation (EC) technology is a burgeoning alternative for effective water treatment, which offers the virtues such as compact equipment, easy operation, and low sludge production. Compared to other water purification technologies, EC shows excellent removal efficacy for a wide range of contaminants in water and has great potential for addressing limitations of conventional water purification technologies. This review summarizes the latest development of principle, characteristics, and reactor design of EC. The design of key parameters including reactor shape, power supply type, current density, as well as electrode configuration is further elaborated. In particular, typical water treatment systems powered by renewable energy (solar photovoltaic and wind turbine systems) are proposed. Further, this review provides an overview on expanded application of EC in the removal of some newly concerned pollutants in recent years, including arsenite, perfluorinated compounds, pharmaceuticals, oil, bacteria, and viruses. The removal efficiency and mechanisms of these pollutants are also discussed. Finally, future research trend and focus are further recommended. This review can bridge the large knowledge gap for the EC application that is beneficial for environmental researchers and engineers.
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Affiliation(s)
- Jianbo Lu
- School of Civil Engineering, Yantai University, Yantai, Shandong, 264005, China.
| | - Peng Zhang
- School of Civil Engineering, Yantai University, Yantai, Shandong, 264005, China
| | - Jie Li
- School of Economics and Management, Yantai University, Yantai, Shandong, 264005, China
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Roadmap to distillery spent wash treatment and use of soft computing techniques. EVOLUTIONARY INTELLIGENCE 2020. [DOI: 10.1007/s12065-020-00381-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Damaraju M, Gupta VK, Bhattacharyya D, Panda TK, Kurilla KK. Improving the performance of a continuous bipolar-mode electrocoagulation (CBME) system, treating a marigold flower processing wastewater, through process modifications. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1725572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Madhuri Damaraju
- Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Vishwajeet Kumar Gupta
- Department of Civil Engineering, Indian Institute of Technology Banaras Hindu University, Varnasi, India
| | - Debraj Bhattacharyya
- Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
| | - Tarun Kanti Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Telangana, India
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Khan MJH, Hussain MA, Mujtaba IM. Developed Hybrid Model for Propylene Polymerisation at Optimum Reaction Conditions. Polymers (Basel) 2016; 8:E47. [PMID: 30979141 PMCID: PMC6432575 DOI: 10.3390/polym8020047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/20/2016] [Accepted: 01/28/2016] [Indexed: 11/16/2022] Open
Abstract
A statistical model combined with CFD (computational fluid dynamic) method was used to explain the detailed phenomena of the process parameters, and a series of experiments were carried out for propylene polymerisation by varying the feed gas composition, reaction initiation temperature, and system pressure, in a fluidised bed catalytic reactor. The propylene polymerisation rate per pass was considered the response to the analysis. Response surface methodology (RSM), with a full factorial central composite experimental design, was applied to develop the model. In this study, analysis of variance (ANOVA) indicated an acceptable value for the coefficient of determination and a suitable estimation of a second-order regression model. For better justification, results were also described through a three-dimensional (3D) response surface and a related two-dimensional (2D) contour plot. These 3D and 2D response analyses provided significant and easy to understand findings on the effect of all the considered process variables on expected findings. To diagnose the model adequacy, the mathematical relationship between the process variables and the extent of polymer conversion was established through the combination of CFD with statistical tools. All the tests showed that the model is an excellent fit with the experimental validation. The maximum extent of polymer conversion per pass was 5.98% at the set time period and with consistent catalyst and co-catalyst feed rates. The optimum conditions for maximum polymerisation was found at reaction temperature (RT) 75 °C, system pressure (SP) 25 bar, and 75% monomer concentration (MC). The hydrogen percentage was kept fixed at all times. The coefficient of correlation for reaction temperature, system pressure, and monomer concentration ratio, was found to be 0.932. Thus, the experimental results and model predicted values were a reliable fit at optimum process conditions. Detailed and adaptable CFD results were capable of giving a clear idea of the bed dynamics at optimum process conditions.
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Affiliation(s)
- Mohammad Jakir Hossain Khan
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Mohd Azlan Hussain
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
- UM Power Energy Dedicated Advanced Centre (UMPEDAC).
| | - Iqbal Mohammed Mujtaba
- Chemical Engineering Division, School of Engineering, University of Bradford, Bradford BD7 1DP, UK.
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A virtual issue of JTICE: “Decolorization technologies for textile effluent treatment”. J Taiwan Inst Chem Eng 2012. [DOI: 10.1016/j.jtice.2012.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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