Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor

›› 2011, Vol. 19 ›› Issue (3): 391-396.

Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor

程翔¹, 叶杰旭², 孙德智¹, 陈爱燕³

1. College of Environmental Science&Engineering, Beijing Forestry University, Beijing 100083, China;
2. School of Municipal&Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;
3. Heilongjiang Provincial Research Institute of Environmental Sciences, Harbin 150056, China

收稿日期:2010-05-27 修回日期:2011-03-11 出版日期:2011-06-28 发布日期:2011-06-28
通讯作者: SUN Dezhi, E-mail: sdzlab@126.com
基金资助:
Supported by the National Natural Science Foundation of China(50978029,51008023)

Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor

CHENG Xiang¹, YE Jiexu², SUN Dezhi¹, CHEN Aiyan³

1. College of Environmental Science&Engineering, Beijing Forestry University, Beijing 100083, China;
2. School of Municipal&Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;
3. Heilongjiang Provincial Research Institute of Environmental Sciences, Harbin 150056, China

Received:2010-05-27 Revised:2011-03-11 Online:2011-06-28 Published:2011-06-28
Supported by:
Supported by the National Natural Science Foundation of China(50978029,51008023)

摘要/Abstract

摘要： A group of Zn-Al layered double hydroxides(LDHs)were synthesized at different temperatures from 25-90℃ in order to investigate the influence of synthesis temperature on characteristics of the LDHs and their phosphate adsorption behaviour.The results reveal that an increase in the synthesis temperature generally improves the specific surface area of the sample and the phosphate adsorption capacity.The significantly enhanced crystallinity of the Zn-Al-30,synthesized at 30℃,leads to a remarkable decrease in the specific surface area and consequently a poor phosphate adsorption capacity.It is suggested that the surface adsorption plays an important role in the phosphate uptake by the Zn-Al LDHs.Zn-Al-70 presents a relatively higher crystallinity and a lower specific surface area,compared with Zn-Al-60 and Zn-Al-80,but the highest phosphate adsorption capacity,indicating that surface adsorption is only one of the pathways for phosphate removal.The phosphate adsorption by the Zn-Al follows a pseudo-second-order kinetic equation.The adsorption isotherms fit Langmuir models,and the maximum adsorption capacities of the Zn-Al-25,Zn-Al-50 and Zn-Al-70 are estimated to be 17.82,21.01 and 27.10 mg·g^-1 adsorbent,respectively.

关键词: excess sludge liquor, layered double hydroxides, phosphate adsorption, synthesis temperature

Abstract: A group of Zn-Al layered double hydroxides(LDHs)were synthesized at different temperatures from 25-90℃ in order to investigate the influence of synthesis temperature on characteristics of the LDHs and their phosphate adsorption behaviour.The results reveal that an increase in the synthesis temperature generally improves the specific surface area of the sample and the phosphate adsorption capacity.The significantly enhanced crystallinity of the Zn-Al-30,synthesized at 30℃,leads to a remarkable decrease in the specific surface area and consequently a poor phosphate adsorption capacity.It is suggested that the surface adsorption plays an important role in the phosphate uptake by the Zn-Al LDHs.Zn-Al-70 presents a relatively higher crystallinity and a lower specific surface area,compared with Zn-Al-60 and Zn-Al-80,but the highest phosphate adsorption capacity,indicating that surface adsorption is only one of the pathways for phosphate removal.The phosphate adsorption by the Zn-Al follows a pseudo-second-order kinetic equation.The adsorption isotherms fit Langmuir models,and the maximum adsorption capacities of the Zn-Al-25,Zn-Al-50 and Zn-Al-70 are estimated to be 17.82,21.01 and 27.10 mg·g^-1 adsorbent,respectively.

Key words: excess sludge liquor, layered double hydroxides, phosphate adsorption, synthesis temperature

程翔, 叶杰旭, 孙德智, 陈爱燕. Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor[J]. , 2011, 19(3): 391-396.

CHENG Xiang, YE Jiexu, SUN Dezhi, CHEN Aiyan. Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor[J]. , 2011, 19(3): 391-396.

参考文献

1 Namasivayam, C., Sangeetha, D., “Equilibrium and kinetic studies of adsorption of phosphate onto ZnCl₂ activated coir pith carbon”, J. Colloid. Interf. Sci., 280(2), 359-365(2004).
2 Kostura, B., Kulveitová, H., Le ko, J., “Blast furnace slags as sorbents of phosphate from water solutions”, Water Res., 39(9), 1795-1802(2005).
3 Seida, Y., Nakano, Y., “Removal of phosphate by layered double hydroxides containing iron”, Water Res., 36(5), 1306-1312(2002).
4 Monzón, A., Latorre, N., Ubieto, T., Royo, C., Romeo, E., Villacampa, J.I., Dussault, L., Dupin, J.C., Guimon, C., Montioux, M., “Improvement of activity and stability of Ni-Mg-Al catalysts by Cu addition during hydrogen production by catalytic decomposition of methane”, Catal. Today, 116(3), 264-270(2006).
5 Roto, R., Yamagishi, A., Villemure, G., “Electrochemical quartz crystal microbalance study of mass transport in thin film of a redox active Ni-Al-Cl layered double hydroxide”, J. Electroanal. Chem., 572(1), 101-108(2004).
6 Das, D.P., Das, J., Parida, K., “Physicochemical characterization and adsorption behavior of calcined Zn/Al hydrotalcite-like compound(HTlc) towards removal of fluoride from aqueous solution”, J. Colloid. Interf. Sci., 261(2), 213-220(2003).
7 Mandal, S., Mayadevi, S., “Adsorption of fluoride ions by Zn-Al layered double hydroxides”, Appl. Clay Sci., 40(1-4), 54-62(2008).
8 Carja, G., Ratoi, S., Ciobanu, G., Balasanian, I., “Uptake of As(V) from aqueous solution by anionic clays type FeLDHs”, Desalination, 223(1-3), 243-248(2008).
9 Kwon, T., Tsigdinos, G.A., Pinnavaia, T.J., “Pillaring of layered double hydroxides(LDH’s) by polyoxometalate anions”, J. Am. Chem. Soc., 110(11), 3653-3654(1988).
10 Miyata, S., “The syntheses of hydrotalcite-like compounds and their structures and physico-chemical properties-I: The systems Mg²⁺-Al³⁺-NO₃^-, Mg²⁺-Al³⁺-Cl^-, Mg²⁺-Al³⁺-ClO₄^-, Ni²⁺-Al³⁺-Cl^- and Zn²⁺-Al³⁺-Cl^-”, Clay. Clay Miner., 23(5), 396-375(1975).
11 Taylor, H.F.W., “Crystal structures of some double hydroxide minerals”, Mineral. Mag., 39(304), 377-389(1973).
12 Kuzawa, K., Jung, Y.J., Kiso, Y., Yamada, T., Nagai, M., Lee, T.G., “Phosphate removal and recovery with a synthetic hydrotalcite as an adsorbent”, Chemosphere, 62(1), 45-52(2006).
13 Das, J., Patra, B.S., Baliarsingh, N., Parida, K.M., “Adsorption of phosphate by layered double hydroxides in aqueous solutions”, Appl. Clay Sci., 32(3-4), 252-260(2006).
14 Shin, H.S., Kim, M.J., Nam, S.Y., Moon, H.C., “Phosphorus removal by hydrotalcite-like compounds(HTLcs)”, Water Sci. Technol., 34(1), 161-168(1996).
15 Badreddine, M., Legrouri, A., Barroug, A., De Roy, A., Besse, J.P., “Ion exchange of different phosphate ions into the zinc-aluminiumchloride layered double hydroxide”, Mater. Lett., 38(6), 391-395(1999).
16 Chitrakar, R., Tezuka, S., Sonoda, A., Sakane, K., Ooi, K., Hirotsu, T., “Adsorption of phosphate from seawater on calcined MgMn-layered double hydroxides”, J. Colloid. Interf. Sci., 290(1), 45-51(2005).
17 APHA, AWWA, WEF, Standard methods for the examination of water and wastewater(20nd edition), American Public Health Association, Washington, DC(1998).
18 Duan, X., Evans, D.G., He, J., Kang, Y., Khan, A.I., Leroux, F., Li, B., Li, F., O’Hare, D., Slade, R.C.T., Layered double hydroxides, Springer, Berlin, 106(2005).
19 Fernández, J.M., Ulibarri, M.A., Labajos, F.M., Rives, V., “The effect of iron on the crystalline phases formed upon thermal decomposition of Mg-Al-Fe hydrotalcites”, J. Mater. Chem., 8(11), 2507-2514(1998).
20 Seida, Y., Nakano, Y., “Removal of humic substances by layered double hydroxide containing iron”, Water Res., 34(5), 1487-1494(2000).
21 Radha, A.V., Vishnu Kamath, P., Shivakumara, C., “Mechanism of the anion exchange reactions of the layered double hydroxides(LDHs) of Ca and Mg with Al” Solid State Sci., 7(10), 1180-1187(2005).
22 Ookubo, A., Ooi, K., Hayashi, H., “Preparation and phosphate ion-exchange properties of a hydrotalcite-like compound”, Langmuir, 9(5), 1418-1422(1993).
23 Lagergren, S., “About the theory of so-called adsorption of soluble substance”, Kung Sven. Veten. Hand, 24, 1-39(1898).
24 Ho, Y.S., McKay, G., “Pseudo-second order model for sorption processes”, Process Biochem., 34(5), 451-465(1999).
25 Aharoni, C., Sparks, D.L., Levinson, S., Ravina, I., “Kinetics of soil chemical reactions: Relationships between empirical equations and diffusion models”, Soil Sci. Soc. Am. J., 55(5), 1307-1313(1991).

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Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor

Influence of Synthesis Temperature on Phosphate Adsorption by Zn-Al Layered Double Hydroxides in Excess Sludge Liquor

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