A preliminary study of the preparation of porous carbon from oil sludge for water treatment by simple pyrolysis or KOH activation
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摘要: 研究燃油储罐中产生的油泥转化为多孔炭材料的表征和可行性。油泥含有80%碳,主要以脂肪族化合物形式存在。经600 ℃热处理和KOH存在下的热化学裂解得到2种碳质材料。热化学处理可显著提高所制多孔炭的织构特性,即微孔和介孔结构。该多孔炭表面积、总孔容与微孔比表面积分别为327.95 m2·g-1、 0.21 cm3·g-1和89.10 m2·g-1,其在水溶液中对Cd的吸附性能优于商业活性炭。油泥经热化学转化的多孔炭吸附剂能应用于污水处理,是一种转化废弃物的有效途径。Abstract: The production and disposal of large amounts of oil sludge are considered a most critical environmental issue in the petroleum industry. The possible conversion of oil sludge produced in a fuel oil storage tank to porous carbons by simple pyrolysis or KOH activation was investigated and the feasibility of their use to treat drinking water and to adsorb were evaluated. The oil sludge contains 80% of carbon and consists of mainly aliphatic compounds. The porous carbon obtained by KOH activation has a BET surface area, total pore volume and micropore surface area of 328.0 m2·g-1, 0.21 cm3·g-1 and 289.10 m2·g-1, respectively, while that produced by pyrolysis has a much lower surface area of 3.6 m2·g-1. Although Cd, Cu, Zn, Mn, and Fe are enriched in the porous carbons compared with the oil sludge, their leaching in distilled water is low and below the allowed standard limits except for Cr which is close to the limit. The Cd adsorption removal rates for the KOH activated porous carbon and the pyrolysed one are 97.36 and 77.74%, respectively. The former is comparable to three commercial activated carbons under the same conditions. The recovery of the oil sludge through KOH activation to prepare porous adsorbents for waste water treatment can be suggested as an alternative to the conventional disposal methods.
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Key words:
- Oily sludge /
- Porous carbon /
- Thermochemical treatment /
- Adsorption
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Dias J M, Alvim-Ferraz M C M, Almeida M F, et al. Waste materials for activated carbon preparation and its use in aqueous-phase treatment: A review
[J]. Journal of Environmental Management, 2007, 85(4): 833-846.
Saka C. BET, TG-DTG, FT-IR, SEM, iodine number analysis and preparation of activated carbon from acorn shell by chemical activation with ZnCl2
[J]. Journal of Analytical and Applied Pyrolysis, 2012, 95: 21-24.
Moreno-Castilla C, Carrasco-Marín F, López-Ramón MV, et al. Chemical and physical activation of olive-mill waste water to produce activated carbons
[J]. Carbon, 2001, 39(9): 1415-1420.
Chen X, Jeyaseelan S, Graham N. Physical and chemical properties study of the activated carbon made from sewage sludge
[J]. Waste Management, 2002, 22(7): 755-760.
Hu G, Li J, Zeng G. Recent development in the treatment of oily sludge from petroleum industry: A review
[J]. Journal of Hazardous Materials, 2013, 261: 470-490.
Chang C Y, Shie J L, Lin J P, et al. Major products obtained from the pyrolysis of oil sludge
[J]. Energy & Fuels, 2000, 14(6): 1176-1183.
Karamalidis A K, Voudrias E A. Release of Zn, Ni, Cu, SO42- and CrO42- as a function of pH from cement-based stabilized/solidified refinery oily sludge and ash from incineration of oily sludge
[J]. Journal of Hazardous Materials, 2007, 141(1): 591-606.
Kriipsalu M, Marques M, Maastik A. Characterization of oily Sludge from a wastewater treatment plant flocculation-flotation unit in a petroleum refinery and its treatment implications
[J]. Journal of Material Cycles and Waste Management, 2008, 10(1): 79-86.
Mazlova E A, Meshcheryakov S V. Ecological characteristics of oil sludges
[J]. Chemistry and Technology of Fuels and Oils, 1999, 35(1): 49-53.
Kumar Mandal A, Manab Sarma P, Singh B, et al. Bioremediation: a sustainable eco-friendly biotechnological solution for environmental pollution in oil industries
[J]. Journal of Sustainable Development & Environmental Protection, 2011, 1(3): 5-23.
Al-Futaisi A, Jamrah A, Yaghi B, et al. Assessment of alternative management techniques of tank bottom petroleum sludge in Oman
[J]. Journal of Hazardous Materials, 2007, 141(3): 557-564.
Seredych M, Bandosz T J. Removal of copper on composite sewage sludge/industrial sludge-based adsorbents: The role of surface chemistry
[J]. Journal of Colloid and Interface Science, 2006, 302(2): 379-388.
ASTM. Standard test method for ash from petroleum products
[S]. PA (USA): ASTM International D 482-487, 2005.
ASTM. Standard test method for screening of pH in waste
[S]. PA (USA): ASTM International D 4980-489, 2005.
ASTM. Standard practice for nitric acid digestion of solid waste
[S]. PA (USA): ASTM International D 5198-5192, 2005.
Hubschmann H J. Handbook of GC/MS
[M]. Germany: WILEY-VCH, 2009: 30-38.
Deng H, Li G, Yang H, et al. Preparation of activated carbons from cotton stalk by microwave assisted KOH and K2CO3 activation
[J]. Chemical Engineering Journal, 2010, 163(3): 373-381.
Small C C, Hashisho Z, Ulrich A C. Preparation and characterization of activated carbon from oil sands coke
[J]. Fuel, 2012, 92(1): 69-76.
U S Environmental Protection Agency. Method 1311
[S]. Toxicity characteristic leaching procedure (TCLP), 1999.
Asia I O, Enweani I B, Eguavoen I O. Characterization and treatment of sludge from the petroleum industry
[J]. African Journal of Biotechnology, 2006, 5(5): 461-466.
Shie J L, Chang C Y. Thermal degradation kinetics of oil sludge in the presence of carbon dioxide
[J]. Journal of Chinese Institute Environmental Engineering, 2001, 11(4): 307-316.
Rocha O, Dantas R, Duarte M M. Oil sludge treatment by photocatalysis applying black and white light
[J]. Chemical Engineering Journal, 2010, 157(1): 80-85.
Liu J, Jiang X, Zhou L, et al. Pyrolysis treatment of oil sludge and model-free kinetics analysis
[J]. Journal of Hazardous Materials, 2009, 161(3): 1208-1215.
Andrade P F, Azevedo T F, Gimenez I, et al. Conductive carbon-clay nanocomposites from petroleum oily sludge
[J]. Journal of Hazardous Materials, 2009, 167(3): 879-884.
Varela R, Andrade J M, Muniategui S, et al. The comparison of two heavy fuel oils in composition and weathering pattern, based on IR, GC-FID and GC-MS analyses: application to the prestige wreackage
[J]. Water Research, 2009, 43(4): 1015-1026.
Domínguez A, Menéndez J A, Inguanzo M, et al. Gas chromatographic-mass spectrometric study of the oil fractions produced by microwave-assisted pyrolysis of different sewage sludges
[J]. Journal of Chromatography A, 2003, 1012(2): 193-206.
Marsh H, Rodriguez-Reinoso F. Activated Carbon. 1th ed
[M]. London: Elsevier, 2006: 26-27, 155-156.
Lippens B C, Boer J H. Studies on pore systems in catalysts: V. the t method
[J]. Journal of Catalysis, 1965, 4(3): 319-323.
Kante K, Qiu J, Zhao Z, et al. Development of surface porosity and catalytic activity in metal sludge/waste oil derived adsorbents: effect of heat treatment
[J]. Chemical Engineering Journal, 2008, 138(1): 155-165.
Ruparelia J P, Duttagupta S P, Chatterjee A K, et al. Potential of carbon nanomaterials for removal of heavy metals from water
[J]. Desalination, 2008, 232(2): 145-155.
WHO. Guidelines for drinking-water quality. 3rd ed. Volume 1: Recommendations
[S].World Health Organization, 2008, ISBN 978 92 4 1547604.
Wang Y, Sheng F, Cao Z, et al. Assessment of maturity of vineyard pruning compost by fourier transform infrared spectroscopy, biological and chemical analyses
[J]. Landbauforschung VÖlkenrode, 2004, 54(3): 163-169.
KE Yi-hu, YANG Er-tao, LIU Xin, et al. Preparation of porous carbons from non-metallic fractions of waste printed circuit boards by chemical and physical activation
[J]. New Carbon materials, 2013, 28(2): 107-114. (柯义虎, 杨二桃, 刘 欣, 等. 用废弃印刷线路板非金属组分分离物制备多孔炭
[J]. 新型炭材料, 2013, 28(2): 107-114.)
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