effect of calcination temperature in production of...

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2013 Moving Forward The 11th International Conference on Mining, Materials and Petroleum Engineering The 7th International Conference on Earth Resources Technology ASEAN Forum on Clean Coal Technology November 11-13, 2013, Chiang Mai, Thailand

129

PPaappeerr IIDD 9911

Effect of Calcination Temperature in Production of

Magnetic Nanoparticles for Arsenic Adsorption

T. Bhongsuwan1*

, D. Bhongsuwan2, N. Chomchoey

2, L. Boonchuay

2

1 Department of Physics, Geophysics Research Center, Prince of Songkla

University, Thailand 2 Department of Materials Science and Technology, Prince of Songkla

University, Thailand

*Corresponding author, e-mail: [email protected]

ABSTRACT

The effects of calcinations temperature in production of MNPs for arsenic adsorption were the main target of this study. MNPs were synthesized by precipitation of ferrous / ferric chloride solution and heat treatment at the temperature between 80 - 700°C. The MNPs were characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM). Their magnetic properties were measured using a vibrating sample magnetometer (VSM) for magnetic hysteresis properties, a Kappabridge for measurement of the initial magnetic susceptibility, acquisition of the isothermal remanent magnetization (IRM) and AF demagnetization of the acquired IRM. The concentration of total arsenic and iron were measured by an inductively coupled plasma-optical emission spectrometer (ICP-OES). The results show that the MNPs prepared at 350°C are maghemite with the crystallite size of 18.5 nm whereas the MNPs prepared at 700°C are hematite of 27.6 nm. Magnetic properties of the synthetic MNPs confirm the present of maghemite at a lower temperature and hematite at 700°C. The highest monolayer adsorption capacity for As(V) is obtained at 46 mg/g for the MNPs calcining at 80°C and it decreases gradually when calcinations temperature increases. This magnetic nanoparticles have been proven to be very useful for adsorption of As(V) in mining waste water in abandoned tin mining area in Ron Phibon district, Nakhon Si Thammarat province.

KEY WORDS: Magnetite / Arsenic adsorption / Langmuir isotherm

REFERENCES

[1] Y.K.Sun, M.Ma, Y.Zhang, and N.Gu (2004), Synthesis of nanometer-size maghemite particles from magnetite, Colloid. Surface., 2004, Vol. 245, No. 1-3, pp. 15-19.

[2] S.Dutz, R.Hergt, J.Mürbe, R.Müller, M.Zeisberger, W.Andrä, J.Töpfer, and M.E.Bellemann (2001), Hysteresis losses of magnetic nanoparticle powders

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in the single domain size range, J. Magn. Magn. Mater., 2007, Vol. 308, No. 2, pp. 305-312.

[3] J.Mürbe, A.Rechtenbach, and J.Töpfer (2008), Synthesis and physical characterization of magnetite nanoparticles for biomedical applications. Mater. Chem. Phys., 2008, Vol. 110, No. 2-3, pp. 426-433.

[4] N.Chomchoey, T.Bhongsuwan, and D.Bhongsuwan (2009), Remanent Magnetization Characteristics of Synthetic Magnetic Nanoparticles, J. KKU

Research (Graduate Studies)., 2009, Vol.9, No. 1, pp. 48-56. [5] H.Iida, K.Takayanagi, T.Nakanishi, and T.Osaka (2007), Synthesis of

Fe3O4 nanoparticles with various sizes and magnetic properties by controlled hydrolysis, J. Colloid Interface Sci., 2007, Vol. 314, No. 1, pp. 274-280.

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131


Adsorption of Methylene Blue by Natural Aluminosilicates

D. Bhongsuwan1,

3*, N. Chomchoey

1, T. Bhongsuwan

2, M. Boripan

3

1 Department of Materials Science and Technology, Prince of Songkla

University, Thailand 2 Department of Physics, Geophysics Research Center, Prince of Songkla

University, Thailand 3 Membrane Science and Technology Research Center, Prince of Songkla

University, Thailand


ABSTRACT:

In this study, new adsorbents made from natural products, i.e., rice husk carbon, kaolin, ball clay and bentonite, were used for treatment of basic dye (methylene blue; MB) solution. The adsorbents were prepared from 12 mixture formula in the form of granule after heat treatment at 500°C for 1 hour. The adsorption experiments were made using the batch and continuous adsorption processes. The concentrations of MB in the solution were measured by UV-Vis spectrophotometer. In the continuous processes, it is found that the volume of the clear solution after MB adsorption was 1800 ml (89.65% removal) at the flow rate of 20 ml/min using a 20 cm adsorbent bed height. In the batch processes, the adsorption efficiency of MB in water is more than 80% for all prepared adsorbents at the MB concentration of 50 mg/l. The highest adsorption capacity reaches 64.35-79.90 mg/g in the mixtures containing bentonite. The result shows that alumino-silicates mixtures could be very useful in the treatment of basic dye in the industry. It could be made at a low cost and friendly to the environment. KEY WORDS: Methylene blue / Aluminosilicate / Bentonite / Batch

adsorption / Continuous adsorption

REFERENCES [1] Y.Ju-Zhen, and Z.Li-Ming (2008), Removal of methylene blue dye from

aqueous solution by adsorption onto sodium humate / polyacrylamide /clay hybrid hydrogels. Bioresour. Technol., 2008, Vol. 99, No. 7, pp. 2182-2186.

[2] N.Öztürk, and T.Ennil Bekta (2004)¸ Nitrate removal from aqueous solution by adsorption onto various materials, J.Hazard. Mater., 2004, Vol.112, No. 1-2, pp. 155-162.

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[3] S.Babel, and T.A.Kurniawan (2003), Low-cost adsorbents for heavy metals uptake from contaminated water: a review. J. Hazard. Mater., 2003 Vol. 97, No.1–3, pp. 219-243.

[4] P.Sharma, R.Kaur, C.Baskar, and C.Wook-Jin (2010), Removal of methylene blue from aqueous waste using rice husk and rice husk ash. Desalination., 2010 Vol. 259, No. 1–3, pp. 249-257.

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133


Arsenic Removal from Synthetic Wastewater

by Activated Carbon- Magnetic Nanoparticles Composite

N. Chomchoey1*

, D. Bhongsuwan1, T. Bhongsuwan

2

1 Department of Materials Science and Technology, Prince of Songkla University, Thailand

2 Department of Physics, Geophysics Research Center, Prince of Songkla University, Thailand


ABSTRACT

Adsorption batch tests for As(V) removal from synthetic wastewater by activated carbon-magnetic nanoparticles composite were studied. The aim of this study was to investigate the effect of ratios of activated carbon: magnetic nanoparticles on As(V) adsorption. The adsorbents were characterized by XRD, TEM, VSM, BET, and initial magnetic susceptibility. The concentrations of total arsenic and iron were measured by an inductively coupled plasma-optical emission spectrometer (ICP-OES). Kinetic and isotherm studies were carried out by variations in parameters: contact time, pH and the mass of adsorbents. The results show that the optimum pH for all adsorbents is in the range of about 5-7. The Freundlich isotherm fits the experimental data significantly better than the Langmuir isotherm. The differences in adsorption capacities are assumed to result from the ratios of the activated carbon: magnetic nanoparticles affecting magnetic properties and specific surface area. This magnetic nanocomposites have been proven to be very useful for adsorption of As(V) in mining waste water in abandoned tin mining area in Ron Phibon district, Nakhon Si Thammarat province. KEY WORDS: Magnetic nanoparticles / Activated carbon / Freundlich

isotherm / Langmuir isotherm

REFERENCES

[1] M.Williams, F.Fordyce, A.Paijitprapapon, and P.Charoenchaisri (1996), Arsenic contamination in surface drainage and groundwater in part of the southeast Asian Tin Belt, Naknon Si Thammarat Province, southern Thailand, Environ. Geol., 1996, Vol. 27, No. 1, pp. 16-33.

[2] M.Arienzo, P.Adamo, J.Chiarenzelli, MR.Bianco, and A.De Martino (2002), Retention of Arsenic on Hydrous Ferric Oxides Generated by Electrochemical Peroxidation. Chemosphere, 48 (10), pp.1009-1018.

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[3] J.Gregor (2001), Arsenic Removal During Conventional Aluminium Based Drinking Water Treatment. Water Res., 2001, Vol. 35, No. 7, pp. 1659-1666.

[4] F. G. A.Vagliasindi, M.M. Benjamin (1998), Arsenic Removal in Fresh and Nom-Preloaded Ion Exchange Packed Bed Adsorption Reactors, Water Sci.

Technol., 1998, Vol. 38, No. 6, pp. 337-343. [5] N.Chomchoey, T.Bhongsuwan, and D.Bhongsuwan (2009), Remanent

Magnetization Characteristics of Synthetic Magnetic Nanoparticles, J. KKU

Research (Graduate Studies)., 2009, Vol.9, No. 1, pp. 48-56. [6] N.Öztürk, and T.Ennil Bekta (2004)¸ Nitrate removal from aqueous solution

by adsorption onto various materials, J.Hazard. Mater., 2004, Vol.112, No. 1-2, pp. 155-162.

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135


Water Coning Management for Oil Reservoir with Bottom

Aquifer by Downhole Water Loop

R.Luiprasert1*

, F. Srisuriyachai1, S. Athichanagorn

1

1Department of Mining and Petroleum Engineering, Chulalongkorn University,

Thailand

*E-mail: [email protected]

ABSTRACT

Water coning is a common problem encountered in oil field operation, especially for those exploited in reservoir with strong aquifer beneath hydrocarbon bearing zone. It has an impact on well productivity, accelerating degree of reservoir depletion and resulting in cost of water treatment as well as disposal. Delaying of water coning is investigated in this study by the use of Downhole Water Loop (DWL). DWL is a technique producing water-free hydrocarbon from three different sections of well completed into both oil and water zones. In this study, both reservoir and operational parameters are varied on constructed model. The aim is to verify feasibility of DWL well configuration to prevent water coning. Oil recovery factor is chosen as a major criterion for optimal condition judgment. KEY WORDS: Downhole Water Loop, Downhole Water Sink, Water Coning,

Bottom Drive Aquifer

REFERENCES

[1] Louisiana State University. Downhole Water Sink.http://www.pete.lsu.edu/research/dws [2] A.K. Wojtanowicz, H. Xu and Z. Bassiouni. Oilwell Coning Control Using Dual

Completion With Tailpipe Water Sink. Paper SPE 21654 (April 1991) [3] E.I Shirman and A.K. Wojtanowicz. Water Coning Reversal Using Downhole Water

Sink – Theory and Experimental Study. Paper SPE 38792 (October 1997) [4] A.K. Wojtanowicz, E.I Shirman and H. Kurban. Downhole Water Sink (DWS)

Completion Enhance Oil Recovery in Reservoirs with Water Coning Problem. Paper SPE 56721 (October 1999)

[5] E.I Shirman and A.K. Wojtanowicz. More Oil Using Downhole Water-Sink Technology: A Feasibility Study. Paper SPE 66532 (November 2000)

[6] L. Jin and A.K. Wojtanowicz. Performance Analysis of Wells with Downhole Water Loop Installation for Water Coning Control. Jornal of Canadian Petroleum Technology (June 2010)

[7] A.K. Wojtanowicz and H. Xu, Downhole Water Loop: A New Completion Method to Minimize Oil Well Production Water-Cut in Bottom-Drive-Reservoir. The Journal of Canadian Petroleum Technology (October 1995)

effect of calcination temperature in production of...

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