Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process
Jianzhang Sun, Baoyu Gao(), Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang
Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
Green source Ep was extracted from marine alga waste.
The molecule model structure of Ep was studied and constructed.
PAC-Ep coagulation system improves the efficiency of removal efficiency.
Synergistic effects between NPs and HA make a big difference to enhance efficiency.
Mechanism is charge neutralization, hydrogen bonding and adsorbing-complexing
Enteromorpha polysaccharide (Ep) extracted from alga a novel green coagulant aid for nanoparticles (NPs) and heavy metal ions removal and the structure of EP was intensively studied in this study. The integration of Ep with polyaluminum chloride (PAC-Ep) coagulants exhibited higher coagulation performance than that of the polyaluminum chloride (PAC) because of the negatively charged NPs suspension and humic aid (HA) solution. Significant high removal efficiencies of dissolved organic matter (94.1%), turbidity (99.3%) and Zn ions (69.3%) were achieved by the PAC-Ep coagulants. The dual-coagulation properties of PAC-Ep for different pollutants was based on multiple mechanisms, including (i) Al3+ charge neutralization; (ii) hydroxy aluminum hydroxyl bridging formed polynuclearhydroxy complexes bridge and sweep colloidal particles; (iii) adsorption and bridging of Ep chain for the NPs and heavy metal ions. Results indicated that the destabilization of colloid was induced by the coexisting HA and higher removal was achieved as ions adsorption was enhance in the presence of HA complexation. On the basis of that, the extraction of polysaccharide is a promising candidate for its high coagulation performance in water treatment.
Sanghi R, Bhatttacharya B, Singh V. Cassia angustifolia seed gum as an effective natural coagulant for decolourisation of dye solutions. Green Chemistry, 2002, 4(3): 252–254 https://doi.org/10.1039/b200067a
2
Teh C Y, Wu T Y. The potential use of natural coagulants and flocculants in the treatment of urban waters. Chemical Engineering Transactions, 2014, 39: 1603–1608
3
Teh C Y, Budiman P M, Shak K P Y, Wu T Y. Recent advancement of coagulation–flocculation and its application in wastewater treatment. Industrial & Engineering Chemistry Research, 2016, 55(16): 4363–4389 https://doi.org/10.1021/acs.iecr.5b04703
Wang Y, Xue N, Chu Y, Sun Y, Yan H, Han Q. CuO nanoparticle–humic acid (CuONP–HA) composite contaminant removal by coagulation/ultrafiltration process: The application of sodium alginate as coagulant aid. Desalination, 2015, 367: 265–271 https://doi.org/10.1016/j.desal.2015.04.018
6
Sun J, Gao B, Zhao S, Li R, Yue Q, Wang Y, Liu S. Simultaneous removal of nano-ZnO and Zn2+ based on transportation character of nano-ZnO by coagulation: Enteromorpha polysaccharide compound polyaluminum chloride. Environmental Science and Pollution Research International, 2017, 24(6): 5179–5188 https://doi.org/10.1007/s11356-016-7116-0
pmid: 27349787
7
Ganesan K, Suresh Kumar K, Subba Rao P V, Tsukui Y, Bhaskar N, Hosokawa M, Miyashita K. Studies on chemical composition of three species of Enteromorpha. Biomedicine & Preventive Nutrition, 2014, 4(3): 365–369 https://doi.org/10.1016/j.bionut.2014.04.001
8
Zhao S, Gao B, Wang Y, Yang Z. Influence of a new coagulant aid-Enteromorpha extract on coagulation performance and floc characteristics of aluminum sulfate coagulant in kaolin–humic acid solution treatment. Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 2013, 417: 161–169 https://doi.org/10.1016/j.colsurfa.2012.10.062
9
Zhao S, Gao B, Yue Q, Wang Y, Li Q, Dong H, Yan H. Study of Enteromorpha polysaccharides as a new-style coagulant aid in dye wastewater treatment. Carbohydrate Polymers, 2014, 103(0): 179–186 https://doi.org/10.1016/j.carbpol.2013.12.045
pmid: 24528717
10
Qi X, Mao W, Gao Y, Chen Y, Chen Y, Zhao C, Li N, Wang C, Yan M, Lin C, Shan J. Chemical characteristic of an anticoagulant-active sulfated polysaccharide from Enteromorpha clathrata. Carbohydrate Polymers, 2012, 90(4): 1804–1810 https://doi.org/10.1016/j.carbpol.2012.07.077
pmid: 22944450
11
Zhao S, Gao B, Yue Q, Sun S, Song W, Jia R. Influence of Enteromorpha polysaccharides on variation of coagulation behavior, flocs properties and membrane fouling in coagulation-ultrafiltration process. Journal of Hazardous Materials, 2015, 285: 294–303 https://doi.org/10.1016/j.jhazmat.2014.12.017
pmid: 25528227
12
Zhao Y X, Phuntsho S, Gao B Y, Huang X, Qi Q B, Yue Q Y, Wang Y, Kim J H, Shon H K. Preparation and characterization of novel polytitanium tetrachloride coagulant for water purification. Environmental Science & Technology, 2013, 47(22): 12966–12975 https://doi.org/10.1021/es402708v
pmid: 24106890
13
Grosvenor A P, Kobe B A, Mcintyre N S. Examination of the oxidation of iron by oxygen using X-ray photoelectron spectroscopy and QUASES. Surface Science, 2004, 565(2): 151–162 https://doi.org/10.1016/j.susc.2004.06.210
14
Zou Y, Wang X, Ai Y, Liu Y, Li J, Ji Y, Wang X. Coagulation behavior of graphene oxide on nanocrystallined Mg/Al layered double hydroxides: Batch experimental and theoretical calculation study. Environmental Science & Technology, 2016, 50(7): 3658–3667 https://doi.org/10.1021/acs.est.6b00255
pmid: 26978487
15
Simate G S, Iyuke S E, Ndlovu S, Heydenrych M. The heterogeneous coagulation and flocculation of brewery wastewater using carbon nanotubes. Water Research, 2012, 46(4): 1185–1197 https://doi.org/10.1016/j.watres.2011.12.023
pmid: 22212884
16
Yang S, Hu J, Chen C, Shao D, Wang X. Mutual effects of Pb(II) and humic acid adsorption on multiwalled carbon nanotubes/polyacrylamide composites from aqueous solutions. Environmental Science & Technology, 2011, 45(8): 3621–3627 https://doi.org/10.1021/es104047d
pmid: 21395259
17
Shirasaki N, Matsushita T, Matsui Y, Marubayashi T. Effect of aluminum hydrolyte species on human enterovirus removal from water during the coagulation process. Chemical Engineering Journal, 2016, 284: 786–793 https://doi.org/10.1016/j.cej.2015.09.045
18
Yang Z, Yuan B, Huang X, Zhou J, Cai J, Yang H, Li A, Cheng R. Evaluation of the flocculation performance of carboxymethyl chitosan-graft-polyacrylamide, a novel amphoteric chemically bonded composite flocculant. Water Research, 2012, 46(1): 107–114 https://doi.org/10.1016/j.watres.2011.10.024
pmid: 22075036
19
Shobharani P, Nanishankar V H, Halami P M, Sachindra N M. Antioxidant and anticoagulant activity of polyphenol and polysaccharides from fermented Sargassum sp. International Journal of Biological Macromolecules, 2014, 65: 542–548 https://doi.org/10.1016/j.ijbiomac.2014.02.005
pmid: 24530322
20
Lim S F, Zheng Y M, Zou S W, Chen J P. Characterization of copper adsorption onto an alginate encapsulated magnetic sorbent by a combined FT-IR, XPS, and mathematical modeling study. Environmental Science & Technology, 2008, 42(7): 2551–2556 https://doi.org/10.1021/es7021889
pmid: 18504995
21
Tabarsa M, Lee S J, You S. Structural analysis of immunostimulating sulfated polysaccharides from Ulva pertusa. Carbohydrate Research, 2012, 361: 141–147 https://doi.org/10.1016/j.carres.2012.09.006
pmid: 23023040
22
Schild D, Marquardt C M, Schild D.Analysis of Th(IV)-humate by XPS. Radiochimica Acta, 2000, 88(9–11): 587–591
23
Wang J, Li Y, Chen W, Peng J, Hu J, Chen Z, Wen T, Lu S, Chen Y, Hayat T, Ahmad B, Wang X. The rapid coagulation of graphene oxide on La-doped layered double hydroxides. Chemical Engineering Journal, 2017, 309: 445–453 https://doi.org/10.1016/j.cej.2016.10.053
24
Cassolato J E, Noseda M D, Pujol C A, Pellizzari F M, Damonte E B, Duarte M E. Chemical structure and antiviral activity of the sulfated heterorhamnan isolated from the green seaweed Gayralia oxysperma. Carbohydrate Research, 2008, 343(18): 3085–3095 https://doi.org/10.1016/j.carres.2008.09.014
pmid: 18845298
25
Li H, Mao W, Zhang X, Qi X, Chen Y, Chen Y, Xu J, Zhao C, Hou Y, Yang Y, Li N, Wang C. Structural characterization of an anticoagulant-active sulfated polysaccharide isolated from green alga Monostroma latissimum. Carbohydrate Polymers, 2011, 85(2): 394–400 https://doi.org/10.1016/j.carbpol.2011.02.042
26
Chen K L, Mylon S E, Elimelech M. Enhanced aggregation of alginate-coated iron oxide (hematite) nanoparticles in the presence of calcium, strontium, and barium cations. Langmuir, 2007, 23(11): 5920–5928 https://doi.org/10.1021/la063744k
pmid: 17469860
27
Katsoufidou K, Yiantsios S G, Karabelas A J. Experimental study of ultrafiltration membrane fouling by sodium alginate and flux recovery by backwashing. Journal of Membrane Science, 2007, 300(1–2): 137–146 https://doi.org/10.1016/j.memsci.2007.05.017
28
Gao B, Chu Y, Yue Q, Wang Y. Purification and characterization of Al13 species in coagulant polyaluminum chloride. Journal of Environmental Sciences (China), 2009, 21(1): 18–22 https://doi.org/10.1016/S1001-0742(09)60005-X
pmid: 19402394
29
Martínez-Quiroz M, López-Maldonado E A, Ochoa-Terán A, Oropeza-Guzman M T, Pina-Luis G E, Zeferino-Ramírez J. Innovative uses of carbamoyl benzoic acids in coagulation-flocculation’s processes of wastewater. Chemical Engineering Journal, 2017, 307: 981–988 https://doi.org/10.1016/j.cej.2016.09.011
