Facile synthesis of composite polyferric magnesium–silicate–sulfate coagulant with enhanced performance in water and wastewater

被引:0
|
作者
Xiangtao Huo
Rongxia Chai
Lizheng Gou
Mei Zhang
Min Guo
机构
[1] University of Science and Technology Beijing,School of Metallurgical and Ecological Engineering
来源
International Journal of Minerals, Metallurgy and Materials | 2024年 / 31卷
关键词
polyferric–magnesium–silicate–sulfate; composite coagulants; water and wastewater; excellent stability; high coagulation efficiency; decolorization;
D O I
暂无
中图分类号
学科分类号
摘要
The coagulation process is a widely applied technology in water and wastewater treatment. Novel composite polyferric magnesium–silicate–sulfate (PFMS) coagulants were synthesized using Na2SiO3·9H2O, Fe2(SO4)3, and MgSO4 as raw materials in this paper. The effects of aging time, Fe:Si:Mg, and OH:M molar ratios (M represents the metal ions) on the coagulation performance of the as-prepared PFMS were systematically investigated to obtain optimum coagulants. The results showed that PFMS coagulant exhibited good coagulation properties in the treatment of simulated humic acid–kaolin surface water and reactive dye wastewater. When the molar ratio was controlled at Fe:Si:Mg = 2:2:1 and OH:M = 0.32, the obtained PFMS presented excellent stability and a high coagulation efficiency. The removal efficiency of ultraviolet UV254 was 99.81%, and the residual turbidity of the surface water reached 0.56 NTU at a dosage of 30 mg·L−1. After standing the coagulant for 120 d in the laboratory, the removal efficiency of UV254 and residual turbidity of the surface water were 88.12% and 0.68 NTU, respectively, which accord with the surface water treatment requirements. In addition, the coagulation performance in the treatment of reactive dye wastewater was greatly improved by combining the advantages of magnesium and iron salts. Compared with polyferric silicate–sulfate (PFS) and polymagnesium silicate–sulfate (PMS), the PFMS coagulant played a better decolorization role within the pH range of 7–13.
引用
收藏
页码:574 / 584
页数:10
相关论文
共 50 条
  • [31] Experimental study on Treatment Phenolic Wastewater by Polymerized Silicate Containing Aluminium Sulfate and Magnesium Sulfate
    Yang, Jia-mo
    Chen, Ying
    Wang, Zhen
    Ma, Peng
    ADVANCED ENGINEERING MATERIALS II, PTS 1-3, 2012, 535-537 : 2154 - 2157
  • [32] Facile synthesis of potato starch sulfate magnesium salts
    Staroszczyk, H
    Tomasik, P
    E-POLYMERS, 2005,
  • [33] Removal of refractory dyes by a novel chlorine-free coagulant of polyferric-silicate-acetate (PFSA): Characterization and performance evaluation
    Wei, Yanxin
    Ding, Aimin
    Chen, Yujia
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2022, 10 (05):
  • [34] Preparation of polyaluminum zirconium silicate coagulant and its performance in water treatment
    Zhuang, Jiayan
    Qi, Yaohui
    Yang, Huizhu
    Li, Haoyu
    Shi, Taihong
    JOURNAL OF WATER PROCESS ENGINEERING, 2021, 41
  • [35] Preparation of solid composite polyferric sulfate and its flocculation behavior for wastewater containing high concentration organic compounds
    Wang, R. M.
    Wang, Y.
    He, Y. F.
    Li, F. Y.
    Zhou, Y.
    He, N. P.
    WATER SCIENCE AND TECHNOLOGY, 2010, 61 (11) : 2749 - 2757
  • [36] Performance of water-soluble composite sulfate sand core for magnesium alloy castings
    Jiang, Peng
    Liu, Fuchu
    Fan, Zitian
    Jiang, Wenming
    Liu, Xinwang
    ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, 2016, 16 (03) : 494 - 502
  • [37] A novel titanium sulfate modified poly-magnesium-silicate coagulant with improved pH range for dye removal
    Wei, Yanxin
    Ding, Aimin
    Chen, Yanyan
    JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2023, 343
  • [38] Facile synthesis of ZnO/halloysite nanotube composite with greatly enhanced photocatalytic performance
    Yu, Han
    Xu, Hongliang
    Hao, Tianran
    Yuan, Yucao
    Zhang, Bing
    Wang, Hailong
    Shao, Gang
    Fan, Bingbing
    Lu, Hongxia
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2024, 688
  • [39] Characterization and coagulation performance of a novel inorganic polymer coagulant-Poly-zinc-silicate-sulfate
    Zeng, Yubin
    Park, Junboum
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2009, 334 (1-3) : 147 - 154
  • [40] Preparation and performance characterization of solid polyferric sulfate (SPFS) water purifier from sintering dust
    Wu, Zhichao
    Fang, De
    Cheng, Qiao
    Zhang, Wan
    Wang, Qibo
    Xie, Junlin
    He, Feng
    MATERIALS RESEARCH EXPRESS, 2019, 6 (07):