Dispersion Stability of Drinking Water Treatment Sludge

Siriporn Larpkiattaworn; Wasana Khongwong; Siriporn Tong-On; Chutima Eamchotchawalit; Chaiwat Vorapeboonpong

doi:10.4028/www.scientific.net/KEM.659.69

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 659Dispersion Stability of Drinking Water Treatment...

Dispersion Stability of Drinking Water Treatment Sludge

Abstract:

The objective of this study is to improve the particle suspension stability of drinking water treatment sludge (DWTS) and comparable to other silicate powder which are bentonite, micro silica (micro-SiO₂), and nano-silica (nano-SiO₂). The main dispersion characteristic are related to particle size, and dispersion force. The representative samples of bentonite, micro-SiO₂, nano-SiO₂, and DWTS were dispersed at the same solid content in water. The particle size distribution and chemical composition of samples were analyzed. The suspended samples were measured for Zeta potential at the controlled pH value. Furthermore, turbidity of suspended samples were investigated at various sedimenting time. The results indicated that nano-SiO₂ has the highest Zeta potential value at pH 8-12. The stability of particle dispersion could be implied from turbidity of suspension at various sedimenting time. Bentonite suspension performed more stability than other samples for longer time. However, stability of DWTS particles can be improved by particle size controlling and treatment with dispersion agent to create repulsive force from the charge on the particle surface.

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Periodical:

Key Engineering Materials (Volume 659)

Pages:

69-73

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.659.69

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Online since:

August 2015

Authors:

Siriporn Larpkiattaworn*, Wasana Khongwong, Siriporn Tong-On, Chutima Eamchotchawalit, Chaiwat Vorapeboonpong

Keywords:

Drinking Water Treatment Sludge, Particle Suspension, Turbidity, Zeta Potential

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References

[1] Tadahito, T., Yoshiaki., Y., Kazunori., K., Yukio., N., Preparation of a novel PEG-clay hybrid as a DDS material: Dispersion stability and sustained release profiles. J. Control. Release. 107 (2005) 408-416.

DOI: 10.1016/j.jconrel.2005.03.031

Google Scholar

[2] Worrall, W.E., Clays and Ceramic Raw materials. Elsevier, London, (1986).

Google Scholar

[3] Yildiz, N., Erol, M., Baran, B., Sarikaya, Y., Calimli, A., Modification of rheology and permeability of Turkish ceramic clays using sodium silicate. Appl. Clay Sci. 13 (1998) 65-77.

DOI: 10.1016/s0169-1317(98)00013-1

Google Scholar

[4] Rossington, K.R., Senapati, U., Carty, W.M., A critical evaluation of dispersants: part II Effects on rheology, pH, and specific adsorption. Ceram. Eng. Sci. Proc. 20 (1999) 119-131.

DOI: 10.1002/9780470294543.ch12

Google Scholar

[5] Andreola, F., Pellacani, G.C., Romagnoli, M., Binary and ternary mixture of deflocculant additives for whiteware slurries. Ceram. Eng. Sci. Proc. 22 (2001) 205-211.

DOI: 10.1002/9780470294673.ch33

Google Scholar

[6] Andreola, F., Romagnoli, M., Role of the surface treatment in the deflocculation of kaolinite. J. Am. Ceram. Soc. 89 (3) (2006) 1107-1109.

DOI: 10.1111/j.1551-2916.2005.00814.x

Google Scholar

[7] Jose¢, L.A., Vicente B., Vicente S., Juan C.J., Electrokinetic and rheological properties of highly concentrated kaolin dispersions: Influence of particle volume fraction and dispersant concentration. Appl. Clay Sci. 49 (2010) 33-43.

DOI: 10.1016/j.clay.2010.03.020

Google Scholar

[8] Papo, A., Piani, L., Ricceri, R., Sodium tripolyphosphate and polyphosphate as dispersing agents for kaolin suspensions: rheological characterization. Coll. Surf. A: Physicochem. Eng. Aspects 201 (2002) 219-230.

DOI: 10.1016/s0927-7757(01)01024-x

Google Scholar