Environmental aspects of gasification of Korean municipal solid waste in a pilot plant

Abstract Municipal solid waste was gasified in a 3 ton/day capacity pilot plant based on thermoselect process with oxygen at a temperature of around 1200 °C. CO and H2 content of synthesis gas were about 27–40 and 36–40%, respectively with high heating value 8.0–10.2 MJ/N m3. Chlorinated compounds like furan, dioxin, and other organics in gaseous and liquid phase were effectively destroyed due to high temperature of high temperature reactor and shock cooling. Exhaust gases were also found to be satisfying the Korean emission standard. Leachable concentration of heavy metals in the vitrified mineral aggregate were much less than the Korean regulatory limit values due to high melting temperature (1600 °C). The vitrified slag of dark brown color was found to be glassy and non-hazardous in nature and seems to have the possibility to be used as natural raw material in cement and construction industry.

[1]  Thomas Malkow,et al.  Novel and innovative pyrolysis and gasification technologies for energy efficient and environmentally sound MSW disposal. , 2004, Waste management.

[2]  Jinwon Park,et al.  Vitrification of Municipal Solid Waste Incinerator Fly Ash Using Brown's Gas , 2005 .

[3]  Dong Chan Kim,et al.  Characteristics of LDPE pyrolysis , 2002 .

[4]  G. Tchobanoglous,et al.  Integrated Solid Waste Management: Engineering Principles and Management Issues , 1993 .

[5]  Koichi Matsuoka,et al.  The physical character of coal char formed during rapid pyrolysis at high pressure , 2005 .

[6]  Jim Glenn,et al.  MSW Composting in the United States , 1997 .

[7]  A. Tomita,et al.  Leaching of ashes and chars for examining transformations of trace elements during coal combustion and pyrolysis , 2004 .

[8]  Ryo Yoshiie.  Influence of ash composition on heavy metal emissions in ash melting process , 2002 .

[9]  T Matsuto,et al.  Effect of electric arc vitrification of bottom ash on the mobility and fate of metals. , 2001, Environmental science & technology.

[10]  Ki‐Hyun Kim,et al.  Mercury emissions as landfill gas from a large-scale abandoned landfill site in Seoul , 2002 .

[11]  R. Steuteville,et al.  MSW composting in the United States : Solid waste composting trends , 1996 .

[12]  S. Nam,et al.  The effect of Na2CO3 on the catalytic gasification of rice straw over nickel catalysts supported on kieselguhr , 2000 .

[13]  Jinwon Park,et al.  Vitrification of MSWI fly ash using Brown's gas and fate of heavy metals , 2005 .

[14]  Thomas Højlund Christensen,et al.  The effect of pH on the complexation of Cd, Ni and Zn by dissolved organic carbon from leachate-polluted groundwater , 2000 .

[15]  A. J. Chandler,et al.  World terends in municipal solid waste management , 1996 .

[16]  T Matsuto,et al.  Behavior of metals in ash melting and gasification-melting of municipal solid waste (MSW). , 2005, Waste management.

[17]  Y. Yun,et al.  Operation performance of a pilot-scale gasification/melting process for liquid and slurry-type wastes , 2003 .

[18]  Jinwon Park,et al.  A Study of Gasification of Municipal Solid Waste Using a Double Inverse Diffusion Flame Burner , 2005 .

[19]  Y. Yoo,et al.  Performance of a pilot-scale gasifier for Indonesian Baiduri coal , 2001 .

[20]  A. Ledin,et al.  Present and Long-Term Composition of MSW Landfill Leachate: A Review , 2002 .

[21]  S. D. Kim,et al.  Gasification kinetics of coals and wood , 1990 .

[22]  Jong Heo,et al.  Vitrification of fly ash from municipal solid waste incinerator. , 2002, Journal of hazardous materials.

[23]  W. Kaminsky.  Pyrolysis of Polymers , 1992 .

[24]  M. Takaoka,et al.  The behaviour of heavy metals and phosphorus in an ash melting process , 1997 .

[25]  J. Hur,et al.  Mature landfill leachate treatment from an abandoned municipal waste disposal site , 2001 .

[26]  Jinwon Park,et al.  Characterization of styrene recovery from the pyrolysis of waste expandable polystyrene , 2003 .

[27]  I. Lancellotti,et al.  Alkaline and alkaline-earth silicate glasses and glass-ceramics from municipal and industrial wastes , 2000 .

[28]  Tuomas Laurila,et al.  Nitrous oxide emissions from a municipal landfill. , 2005, Environmental science & technology.

[29]  A. Buekens,et al.  Chemical kinetic modeling of de novo synthesis of PCDD/F in municipal waste incinerators. , 2001, Chemosphere.

[30]  Bernd Calaminus,et al.  Continuous in-line gasification/vitrification process for thermal waste treatment : process technology and current status of projects , 1998 .

[31]  K Nishida,et al.  Melting and stone production using MSW incinerated ash. , 2001, Waste management.

[32]  Wen-Jhy Lee,et al.  Characterization of Slags and Ingots from the Vitrification of Municipal Solid Waste Incineration Ashes , 2003 .

[33]  Jin-Won Park,et al.  Surface emission of landfill gas from solid waste landfill , 2001 .

[34]  J. Hur,et al.  Combined adsorption and Chemical precipitation process for pretreatment or post-treatment of landfill leachate , 2000 .

[35]  J. Werther,et al.  Sewage sludge combustion , 1999 .

[36]  Zong-ci Zhao,et al.  Climate change 2001, the scientific basis, chap. 8: model evaluation. Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change IPCC , 2001 .

[37]  M. Barlaz,et al.  The fate of toluene, acetone and 1,2-dichloroethane in a laboratory-scale simulated landfill , 2000 .

[38]  Gasification of food waste with steam in fluidized bed , 2001, Korean Journal of Chemical Engineering.

[39]  O. Hjelmar,et al.  Municipal Solid Waste Incinerator Residues , 1997 .