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Effects of Glucomannan Supplementation on Type II Diabetes Mellitus in Humans: A Meta-Analysis. Nutrients 2023; 15:nu15030601. [PMID: 36771306 PMCID: PMC9919128 DOI: 10.3390/nu15030601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/14/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
The hypoglycemic and lipid-lowering effects of glucomannan are widely known, and it is a potential effective treatment for type II diabetes. In this study, we evaluated the effects of glucomannan supplementation on blood-lipid-related indicators, blood-glucose-related indicators, blood pressure (BP), and body weight (BW) in patients suffering from type II diabetes. We searched databases including PubMed, Cochrane, the comprehensive biomedical research database (Embase), Web of Science, and China National Knowledge Infrastructure (CNKI) for literature on glucomannan and type II diabetes. Six randomized controlled trials (RCTs) were eligible (n = 440 participants) to be included in our analysis. Glucomannan not only reduced the total cholesterol (TC) (MD -0.38 [95% CI: -0.61, -0.15], p = 0.001) and low-density lipoprotein (LDL) levels (MD -0.35 [95% CI: -0.52, -0.17], p < 0.0001) compared with the control group, but also reduced the fasting blood glucose (FBG) (MD -1.08 [95% CI: -1.65, -0.50], p = 0.0002), 2 h postprandial blood glucose (P2hBG) (MD -1.92 [95% CI: -3.19, -0.65], p = 0.003), fasting insulin (FINS) (MD -1.59 [95% CI: -2.69, -0.50], p = 0.004), and serum fructosamine (SFRA) levels (SMD -1.19 [95% CI: -1.74, -0.64], p < 0.0001). Our analysis indicates that glucomannan is an effective nutritional intervention for type II diabetes.
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Yang J, Zhang X, Lu Q, Wang L, Hu X, Zhang H. Preparation, Flocculation and Application in Sugar Refining of eco-friendly dextran-polylysine complex flocculant. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Jiang X, Li Y, Tang X, Jiang J, He Q, Xiong Z, Zheng H. Biopolymer-based flocculants: a review of recent technologies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:46934-46963. [PMID: 34263401 PMCID: PMC8279699 DOI: 10.1007/s11356-021-15299-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Biopolymer-based flocculants have become a potential substitute for inorganic coagulants and synthetic organic flocculants due to their wide natural reserves, environmental friendliness, easy natural degradation, and high material safety. In recent years, with more and more attention to clean technologies, a lot of researches on the modification and application of biopolymer-based flocculants have been carried out. The present paper reviews the latest important information about the base materials of biopolymer-based flocculants, including chitosan, starch, cellulose, and lignin etc. This review also highlights the various modification methods of these base materials according to reaction types in detail. Via the recent researches, the flocculation mechanisms of biopolymer-based flocculants, such as adsorption, bridging, charge neutralization, net trapping, and sweeping, as well as, some other special mechanisms are comprehensively summarized. This paper also focuses on the water treatment conditions, the removal efficiency, and advantages of biopolymer-based flocculants in applications. Further, this review sheds light on the future perspectives of biopolymer-based flocculants, which may make progress in the sources of base materials, modification processes, multi-function, and deepening application researches. We believe that this review can guide the further researches and developments of biopolymer-based flocculants in the future, to develop them with a higher efficiency, a lower cost, more safety, and multi-function for more diversified applications. Graphical abstract.
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Affiliation(s)
- Xincheng Jiang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
| | - Yisen Li
- Digital Chongqing Big Data Application Development Co., Ltd, Chongqing, 400000, People's Republic of China
| | - Xiaohui Tang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
| | - Junyi Jiang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
| | - Qiang He
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
| | - Zikang Xiong
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China
| | - Huaili Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China.
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing, 400045, People's Republic of China.
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4
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de Almeida WS, da Silva DA. Does polysaccharide quaternization improve biological activity? Int J Biol Macromol 2021; 182:1419-1436. [PMID: 33965482 DOI: 10.1016/j.ijbiomac.2021.05.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 12/19/2022]
Abstract
The natural polysaccharides, due to their structural diversity, commonly present very distinct solubility and physical chemical properties and additionally have intrinsic biological activities that, gene-rally, reveal themselves in a light way. The chemical modification of the molecular structure can improve these parameters. In this review, original articles that approached the quaternization of polysaccharides for purposes of biological application were selected, without limitation of year of publication, in the databases Scopus, Web of Science and PubMed. The results obtained from the bibliographic survey indicate that the increase in positive charges caused by quaternization improves the interaction between modified polysaccharides and structures that have negative charges on their surface, such as the cell wall of microorganisms and some cells in the human body, such as the DNA. This greater interaction is reflected as an increase in the biological activity of all polysaccharides broached in this study. Another important data obtained was the fact that the chemical changes did not affect or irrelevantly affect the toxicity of almost all of the polysaccharides that were quaternized. Therefore, polysaccharide quaternization is a safe and effective way to obtain improvements in the biological behavior of these macromolecules.
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Affiliation(s)
- Wanessa Sales de Almeida
- Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, 64049-550 Teresina, PI, Brazil.
| | - Durcilene Alves da Silva
- Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, 64049-550 Teresina, PI, Brazil; Núcleo de Pesquisa em Biotecnologia e Biodiversidade, Universidade Federal do Delta do Parnaíba, Brazil.
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5
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Chen Y, Feng L, Liu B, Peng J, Chen Y, Xu C, Ren J. Study of microwave‐template initiated copolymerization peculiarity and evaluation on the coal floc distinctive behavior and flocculation performance. J Appl Polym Sci 2020. [DOI: 10.1002/app.49519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yao Chen
- School of River and Ocean EngineeringChongqing Jiaotong University Chongqing China
| | - Li Feng
- School of Civil and Transportation EngineeringGuangdong University of Technology, Higher Education Mega Center Guangzhou Guangdong China
| | - Bingzhi Liu
- School of Civil and Transportation EngineeringGuangdong University of Technology, Higher Education Mega Center Guangzhou Guangdong China
| | - Junlin Peng
- School of Mechanical Engineering, Xiangtan University Xiangtan Hunan China
| | - Yuning Chen
- School of Civil and Transportation EngineeringGuangdong University of Technology, Higher Education Mega Center Guangzhou Guangdong China
| | - Chuang Xu
- School of Civil and Transportation EngineeringGuangdong University of Technology, Higher Education Mega Center Guangzhou Guangdong China
| | - Jie Ren
- Key Laboratory of the Three Gorges Reservoir Region's Eco‐Environment, Ministry of EducationChongqing University Chongqing China
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7
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Oxidation of dextran using H2O2 and NaClO/NaBr and their applicability in iron chelation. Int J Biol Macromol 2020; 144:615-623. [DOI: 10.1016/j.ijbiomac.2019.12.104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/15/2019] [Accepted: 12/12/2019] [Indexed: 12/17/2022]
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8
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Zhang C, Yang X, Hu W, Han X, Fan L, Tao S. Preparation and characterization of carboxymethyl chitosan/collagen peptide/oxidized konjac composite hydrogel. Int J Biol Macromol 2020; 149:31-40. [PMID: 31954789 DOI: 10.1016/j.ijbiomac.2020.01.127] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 12/15/2022]
Abstract
Medical dressings are used to protect damaged skin from external factors and provide a good healing environment. Hydrogels are aggregates of hydrophilic polymers and water that have a three-dimensional space and can absorb large amounts of water. It has been widely studied in the field of biomedical materials. In this study, we prepared a novel composite hydrogel combined carboxymethyl chitosan, collagen peptide and oxidized konjac, all three materials have been shown to be biocompatible. Then, we set up different hydrogels and tested hydrogels with different proportions. The structures of CMCS (carboxymethyl chitosan)/COP (collagen peptide)/OKGM (oxidized konjac) hydrogels were characterized by IR, NMR, X-ray diffraction and SEM. The effects of hydrogels on the growth of NS-FB and HS-FB cells were studied in vitro. The results of these tests show that the composite hydrogel has excellent mechanical properties and biological activity, and has potential application in wound dressing field.
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Affiliation(s)
- Chang Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Xiaoshuang Yang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Wanqing Hu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Xianshun Han
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Lihong Fan
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China.
| | - Shengxiang Tao
- Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
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Du Y, Sun J, Wang L, Wu C, Gong J, Lin L, Mu R, Pang J. Development of antimicrobial packaging materials by incorporation of gallic acid into Ca2+ crosslinking konjac glucomannan/gellan gum films. Int J Biol Macromol 2019; 137:1076-1085. [DOI: 10.1016/j.ijbiomac.2019.06.079] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/01/2019] [Accepted: 06/11/2019] [Indexed: 12/17/2022]
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10
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Preparation and flocculation properties of biodegradable konjac glucomannan-grafted poly(trimethyl allyl ammonium chloride). Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02836-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Zeng T, Hu XQ, Wu H, Yang JW, Zhang HB. Microwave assisted synthesis and characterization of a novel bio-based flocculant from dextran and chitosan. Int J Biol Macromol 2019; 131:760-768. [DOI: 10.1016/j.ijbiomac.2019.03.116] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/11/2019] [Accepted: 03/18/2019] [Indexed: 11/27/2022]
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12
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Zhu F. Modifications of konjac glucomannan for diverse applications. Food Chem 2018; 256:419-426. [DOI: 10.1016/j.foodchem.2018.02.151] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/21/2017] [Accepted: 02/27/2018] [Indexed: 10/17/2022]
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13
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Ghimici L, Constantin M. Removal of the commercial pesticides Novadim Progress, Bordeaux mixture and Karate Zeon by pullulan derivatives based flocculants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 218:31-38. [PMID: 29665484 DOI: 10.1016/j.jenvman.2018.04.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/23/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
Cationic pullulan derivatives have been synthesized and evaluated, for the first time, as flocculants for the separation of the commercial pesticides, Novadim Progress (organophosphoric type), Bordeax mixture and Karate Zeon (pyrethroid type) from synthetic wastewater. The investigated polymer samples contained either pendent tertiary amine or quaternary ammonium salts groups. The separation efficiency was followed by UV-Vis spectroscopy, while the information regarding the mechanism involved in the separation of pesticide particles have been obtained by zeta potential. UV-Vis spectroscopy data showed strong pesticide particles/polycation interactions in case of Novadim Progress and Bordeaux mixture (maximum pesticide removal between 90% and 98%). Good separation efficiency (around 80%) of Karate Zeon emulsion was also noticed. The zeta potential measurements indicated that the charge neutralization was the common flocculation mechanism for the removal of these pesticides. In addition, the hydrogen bondings and chelation of copper ions by amide and/or tertiary amino groups of the polycations had a noteworthy contribution to the pesticide removal.
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Affiliation(s)
- Luminita Ghimici
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda, 41A, 700487 Iasi, Romania.
| | - Marieta Constantin
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda, 41A, 700487 Iasi, Romania
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14
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Dextran derivatives application as flocculants. Carbohydr Polym 2018; 190:162-174. [DOI: 10.1016/j.carbpol.2018.02.075] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/08/2018] [Accepted: 02/22/2018] [Indexed: 01/06/2023]
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15
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Wang K, Gao S, Shen C, Liu J, Li S, Chen J, Ren X, Yuan Y. Preparation of cationic konjac glucomannan in NaOH/urea aqueous solution. Carbohydr Polym 2018; 181:736-743. [DOI: 10.1016/j.carbpol.2017.11.084] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/22/2017] [Accepted: 11/22/2017] [Indexed: 12/16/2022]
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16
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Feng L, Zheng H, Tang X, Zheng X, Liu S, Sun Q, Wang M. The investigation of the specific behavior of a cationic block structure and its excellent flocculation performance in high-turbidity water treatment. RSC Adv 2018; 8:15119-15133. [PMID: 35541323 PMCID: PMC9079996 DOI: 10.1039/c8ra02006j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/07/2018] [Indexed: 11/21/2022] Open
Abstract
The fabrication of a cationic polyacrylamide (CPAM) with high efficiency and economy has been highly desired in the field of high-turbidity water treatment. This study introduced an ultrasound (US)-initiated template polymerization (UTP) method to develop a novel cationic templated polyacrylamide (TPAA) with a microblock structure. TPAA was prepared using acrylamide (AM) and sodium (3-acrylamidopropyl)trimethylammonium chloride (ATAC) as the monomers and sodium polyacrylate (NaPAA) as the template. Factors that affected polymerization such as the ultrasound power, ultrasound time, initiator concentration, pH, and mAM : mATAC and nNaPAA : nATAC values were investigated. The properties of the polymers were characterized by Fourier transform infrared spectroscopy (FTIR), 1H nuclear magnetic resonance spectroscopy (1H NMR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The results indicated the successful formation of a cationic microblock structure in TPAA. In addition, TPAA displayed favorable thermal decomposition properties and a rough and coarse surface morphology, as shown by analyses using TGA and SEM, respectively. Moreover, a zip (type I) template polymerization mechanism was identified via analyses of the association constant (KM), conversion (Cv) and polymerization rate (Rp). The flocculation performance of the templated copolymer TPAA was evaluated by treating high-turbidity water. According to the results for the zeta potentials and FTIR spectra of the generated flocs, it was indicated that the cationic microblocks in the templated copolymer could greatly enhance its charge neutralization, patching and bridging ability, and therefore excellent flocculation performance (residual turbidity: 5.8 NTU, Df: 1.89, floc size d50: 608.404 μm and floc kinetic: 15.86 × 10−4 s−1) for treating high-turbidity water was achieved. The fabrication of a cationic polyacrylamide (CPAM) with high efficiency and economy has been highly desired in the field of high-turbidity water treatment.![]()
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Affiliation(s)
- Li Feng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control
- Chongqing University
- Chongqing 400044
- China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
| | - Huaili Zheng
- State Key Laboratory of Coal Mine Disaster Dynamics and Control
- Chongqing University
- Chongqing 400044
- China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
| | - Xiaomin Tang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- China
| | - Xinyu Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- China
| | - Shuang Liu
- State Key Laboratory of Coal Mine Disaster Dynamics and Control
- Chongqing University
- Chongqing 400044
- China
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
| | - Qiang Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- China
| | - Moxi Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment
- Ministry of Education
- Chongqing University
- Chongqing 400045
- China
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17
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Fabrication of a cationic polysaccharide for high performance flocculation. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Polyacrylamide-grafted legume starch for wastewater treatment: synthesis and performance comparison. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-1959-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Gou S, Li S, Feng M, Zhang Q, Pan Q, Wen J, Wu Y, Guo Q. Novel Biodegradable Graft-Modified Water-Soluble Copolymer Using Acrylamide and Konjac Glucomannan for Enhanced Oil Recovery. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b04649] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shaohua Gou
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China
| | - Shiwei Li
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China
| | - Mingming Feng
- Xi’an Highway Research Institute, Xi’an, Shanxi 710065, China
| | - Qin Zhang
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China
| | - Qinglin Pan
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China
| | - Jun Wen
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
| | - Yuanpeng Wu
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China
| | - Qipeng Guo
- Polymers
Research Group, Institute for Frontier Materials, Deakin University, Locked
Bag 20000, Geelong, Victoria 3220, Australia
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Li RH, Zhang HB, Hu XQ, Gan WW, Li QP. An efficiently sustainable dextran-based flocculant: Synthesis, characterization and flocculation. CHEMOSPHERE 2016; 159:342-350. [PMID: 27317940 DOI: 10.1016/j.chemosphere.2016.06.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/01/2016] [Accepted: 06/02/2016] [Indexed: 05/03/2023]
Abstract
Polysaccharide-modified flocculant is a notable material in the field of wastewater treatment. Synthesis of biopolysaccharide derivatives as eco-friendly flocculants is remarkably desired for environmental protection. This work presents an efficient flocculant synthesized through copolymerization of acrylamide, sodium acrylate (AS), and dextran. Physicochemical properties of the flocculant were evaluated. Process parameters of coal-washing wastewater flocculation were tested using Response Surface Method. The application of graft polymers exhibited efficient flocculation performance at low level of flocculant dosage in alkalescent environment. The improved dextran contributes to handle industrial effluent and sanitary sewage.
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Affiliation(s)
- Ruo-Han Li
- School of Biological and Medical Engineering, Hefei University of Technology, 193# Tunxi Road, Hefei, 230009, Anhui Province, PR China
| | - Hong-Bin Zhang
- School of Biological and Medical Engineering, Hefei University of Technology, 193# Tunxi Road, Hefei, 230009, Anhui Province, PR China.
| | - Xue-Qin Hu
- School of Biological and Medical Engineering, Hefei University of Technology, 193# Tunxi Road, Hefei, 230009, Anhui Province, PR China
| | - Wei-Wei Gan
- School of Biological and Medical Engineering, Hefei University of Technology, 193# Tunxi Road, Hefei, 230009, Anhui Province, PR China
| | - Qiu-Ping Li
- School of Biological and Medical Engineering, Hefei University of Technology, 193# Tunxi Road, Hefei, 230009, Anhui Province, PR China
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