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Zhao J, Wang L, Sun W, Yang Z, Chen X, Zhang P, Chen X, Zhao J, Liu J, Liu G. Ni-P-PTFE cathode with low surface energy for enhancing electrochemical water softening performance. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 90:1210-1224. [PMID: 39215733 DOI: 10.2166/wst.2024.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
Efficient cathode regeneration is a significant challenge in the electrochemical water softening process. This work explores the use of an electroless plating Ni-P-PTFE electrode with low surface energy for this purpose. The Ni-P-PTFE electrode demonstrates improved self-cleaning performance at high current densities. By combining the low surface energy of the electrode with fluid flushing shear force, the precipitation rate on the Ni-P-PTFE electrode remains stable at approximately 18 g/m2·h over extended periods of operation. Additionally, the cleaning efficiency of the Ni-P-PTFE electrode surpasses that of stainless steel by 66.34%. The Ni-P-PTFE electrode can maintain a larger active area and a longer operational lifespan is attributed to its self-cleaning performance derived from low surface energy. Furthermore, the loose scale layers on the electrode surface are easily removed during electrochemical water softening processes, presenting a novel approach to cathode surface design.
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Affiliation(s)
- Jingru Zhao
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Lida Wang
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China; Chambroad Chemical Industry Research Institute Co., Ltd, Economic Development Zone, Boxing Country, Binzhou 256500, China E-mail:
| | - Wen Sun
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China; Chambroad Chemical Industry Research Institute Co., Ltd, Economic Development Zone, Boxing Country, Binzhou 256500, China
| | - Zhengqing Yang
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Xuesong Chen
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Piji Zhang
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Xu Chen
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China
| | - Jin Zhao
- Chambroad Chemical Industry Research Institute Co., Ltd, Economic Development Zone, Boxing Country, Binzhou 256500, China
| | - Jincheng Liu
- Chambroad Chemical Industry Research Institute Co., Ltd, Economic Development Zone, Boxing Country, Binzhou 256500, China
| | - Guichang Liu
- Department of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China; Chambroad Chemical Industry Research Institute Co., Ltd, Economic Development Zone, Boxing Country, Binzhou 256500, China
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Bai G, Guo M, Mao S, Yin F. Graphene Oxide Inhibits Calcium Carbonate Nucleation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4592-4600. [PMID: 38381623 DOI: 10.1021/acs.langmuir.3c01629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Formation of minerals such as calcium carbonate often causes energy consumption and even safety risk increase due to the hindrance on heat/mass transfer. However, the current antiscalants are not efficient enough because of the poor understanding of the scale inhibition mechanisms. Here, we report an ultrahigh-performance antiscalant, graphene oxide (GO), which exhibits an outstanding nucleation inhibition effect far better than the current state-of-the-art antiscalants even on a subppm dosage. Our experiments reveal that the superior nucleation inhibition effect of GO is attributed to its limiting effect on the nucleation kinetics of ions and its ability to increase the nucleation barrier of calcium carbonate by altering the normal pathway of calcium carbonate polymorph formation. Further analysis indicates that the ion-limiting effect and the polymorph control ability of GO may stem from its oxygen functional group-rich surface chemistry and two-dimensional (2D) planar features, which endow GO with a Ca2+ binding ability and additional steric hindrance for CO32- diffusion, respectively.
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Affiliation(s)
- Guoying Bai
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Mengzi Guo
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Shuaipeng Mao
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Fuxing Yin
- Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
- Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510651, Guangdong, P. R. China
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Wu Z, Yan Z, Zhang Q, Zhu Y, Luo M, Zhou D. Review on descaling and anti-scaling technology of heat exchanger in high-salt wastewater thermal desalination. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:2081-2107. [PMID: 37906460 PMCID: wst_2023_325 DOI: 10.2166/wst.2023.325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Thermal desalination evaporation of high-salt wastewater has been widely used in industry because of the proposed concept of 'zero liquid discharge'. However, due to the high content of Ca2+ and Mg2+ in high-salt wastewater, the heat exchanger, as the main treatment equipment, suffers from serious scaling problems. This review presents descaling and scale inhibition technologies of high-salt wastewater. The advantages and disadvantages of various technologies are summarized and analyzed to provide theoretical support for the research of descaling and anti-scaling of heat exchangers with high-salt wastewater. In future industrial development, the synergistic application of electromagnetic water treatment technology and scale inhibitors can significantly improve the anti-scaling effect, which can reach over 95% stably. Furthermore, the addition of a physical field can also expand the application range of scale inhibitors.
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Affiliation(s)
- Zhigen Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China E-mail:
| | - Zihan Yan
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Qinghong Zhang
- School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, China
| | - Yuting Zhu
- Tongji Architectural Design (Group) Co. Ltd., Tongji University, Shanghai 200092, China
| | - Maohui Luo
- School of Mechanical Engineering, Tongji University, Shanghai 201804, China
| | - Dan Zhou
- School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, China
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Ma X, Zhou Z, Mu Y, Huang Q. Synthesis and evaluation of a new polymeric scale inhibitor with multiple scale inhibition properties. J DISPER SCI TECHNOL 2023. [DOI: 10.1080/01932691.2023.2181182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Xiping Ma
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, PR China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, PR China
| | - Zhaobo Zhou
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, PR China
| | - Yandong Mu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, PR China
| | - Qinghong Huang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, PR China
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Synthesis, scale inhibition performance evaluation and mechanism study of 3-amino-1-propane sulfonic acid modified polyaspartic acid copolymer. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wei L, Lin Y, Li C, Wang S, Gong C, Jiang Y, Li Z. Performance and mechanism study of PESA-IA as a green oilfield scale inhibitor: experimental and molecular dynamics simulation. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03382-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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