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Bi J, Tao Q, Huang X, Wang J, Wang T, Hao H. Simultaneous decontamination of multi-pollutants: A promising approach for water remediation. CHEMOSPHERE 2021; 284:131270. [PMID: 34323782 DOI: 10.1016/j.chemosphere.2021.131270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 05/08/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Water remediation techniques have been extensively investigated due to the increasing threats of soluble pollutants posed on the human health, ecology and sustainability. Confronted with the complex composition matrix of wastewater, the simultaneous elimination of coexisting multi-pollutants remains a great challenge due to their different physicochemical properties. By integrating multi-contaminants elimination processes into one unit operation, simultaneous decontamination attracted more and more attention under the consideration of versatile applications and economical benefits. In this review, the state-of-art simultaneous decontamination methods were systematically summarized as chemical precipitation, adsorption, photocatalysis, oxidation-reduction, biological removal and membrane filtration. Their applications, mechanisms, mutual interactions, sustainability and recyclability were outlined and discussed in detail. Finally, the prospects and opportunities for future research were proposed for further development of simultaneous decontamination. This work could provide guidelines for the design and fabrication of well-organized simultaneous decontaminating system.
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Affiliation(s)
- Jingtao Bi
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Qingqing Tao
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xin Huang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Co-Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
| | - Jingkang Wang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Co-Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China; State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China
| | - Ting Wang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Co-Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - Hongxun Hao
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Co-Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China; State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, China.
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Singh V, Mishra V. Sustainable reduction of Cr (VI) and its elemental mapping on chitosan coated citrus limetta peels biomass in synthetic wastewater. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1993921] [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: 10/20/2022]
Affiliation(s)
- Veer Singh
- School of Biochemical Engineering, Iit (Bhu), Varanasi, India
| | - Vishal Mishra
- School of Biochemical Engineering, Iit (Bhu), Varanasi, India
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Li C, Li H, Xu K. High-substitute nitrochitosan used as energetic materials: Preparation and detonation properties. Carbohydr Polym 2020; 237:116176. [PMID: 32241397 DOI: 10.1016/j.carbpol.2020.116176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/08/2020] [Accepted: 03/13/2020] [Indexed: 10/24/2022]
Abstract
In order to develop new high-energy materials utilizing natural products, a high-substitute nitrochitosan was prepared with different methods. Prepared processes and detonation properties of the nitrochitosan samples were systematically studied. The nitration substitute degree, nitrogen content, exothermic decomposition enthalpy, heat of combustion, impact sensitivity, detonation velocity and detonation pressure of the prepared high-substitute nitrochitosan were 2.01, 16.67 %, -2226 J g-1, -7831.6 ± 116.3 J g-1, >14.2 J, 7.81 km s-1, and 24.03 GPa, respectively. Compared with nitrocellulose (NC), the nitrogen content, impact sensitivity and detonation properties of the prepared nitrochitosan were significantly improved. Nitrochitosan and RDX can form a uniform composite in acetone. With the increase of RDX content, the impact sensitivity of composite increased, but the composite was more stable and not easy to decompose. High-substitute nitrochitosan presents a potential application in solid propellants.
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Affiliation(s)
- Chuping Li
- School of Chemical Engineering/Integrated Military-Civilian Innovation Center for Energetic Materials, Northwest University, Xi'an, 710069, China
| | - Hui Li
- Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Kangzhen Xu
- School of Chemical Engineering/Integrated Military-Civilian Innovation Center for Energetic Materials, Northwest University, Xi'an, 710069, China.
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