Enhancement of microwave effect with addition of chemical agents in solubilization of waste activated sludge

Jae-Ho Lee; Jeong-Min Lee; Ji-Sung Lim; Tae-Joo Park; Im-Gyu Byun

Journal of Industrial and Engineering Chemistry, Vol.24, 359-364, April, 2015

DOI10.1016/j.jiec.2014.12.019 Export Citation

Enhancement of microwave effect with addition of chemical agents in solubilization of waste activated sludge

Jae-Ho Lee, Jeong-Min Lee, Ji-Sung Lim, Tae-Joo Park, and Im-Gyu Byun^{1, †}

Department of Civil and Environmental Engineering, Pusan National University, 63beon-gil, Geumjeong-gu, Busan, South Korea
¹Institute for Environmental Technology and Industry, Pusan National University, 63beon-gil, Geumjeong-gu, Busan, South Korea

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Microwave (MW) is a promising method for solubilization of wasted activated sludge (WAS) due to the accelerated reaction rates, environmental friendliness and low overall cost compared to conventional heating. In this study, to enhance the MW effect on solubilization of WAS, several chemical agents were applied including H2SO4 as the acidic material and NaCl and CaCl2 as ionic materials. In the experiment of salt-assisted MW pretreatment, CaCl2 turned out to be ineffective on WAS solubilization, whereas NaCl had a positive effect on WAS solubilization compared to that of MW only assisted pretreatment. Thus, NaCl was considered to be appropriate salt to assist MW pretreatment for WAS solubilization. In the chemically assisted MW pretreatments, H2SO4 assisted MW pretreatment was the most effective for WAS solubilization. However, the application of H2SO4 to MW pretreatment has the drawbacks of reuse, which may increase the operating costs. Thus, food wastewater was used for enhancement of MW efficiency on WAS solubilization due to its high NaCl and acidity. As a result, the application of food wastewater to WAS afforded the solubilization efficiency higher than that of MW-H2SO4 pretreatment.

Keywords:Anaerobic digestion;Solubilization;Microwave;Pretreatment;Waste activated sludge

[References]

Perez-Elvira SI, Diez PN, Fernandez-Polanco F, Rev. Environ. Sci. Biotechnol., 5, 375 (2006)
Neyens E, Baeyens J, Creemers C, J. Hazard. Mater., 97(1-3), 295 (2003)
Tyagi VK, Lo SL, Bioresour. Technol., 119, 105 (2012)
Assawamongkholsiri T, Reungsang A, Pattra S, Int. J. Hydrog. Energy, 38(14), 6146 (2013)
Muller J, Lehne G, Schwedes J, Battenberg S, Naveke R, Kopp J, Water Sci. Technol., 38, 425 (1998)
Lin JG, Chang CN, Chang SC, Bioresour. Technol., 62, 85 (2007)
Choi HN, Jeong SW, Chung YJ, Bioresour. Technol., 92, 198 (2006)
Pham TTH, Brar SK, Tyagi RD, Surampalli RY, J. Hazard. Mater., 163(2-3), 891 (2009)
Byun IG, Lee JH, Lee JM, Lim JS, Park TJ, Water Sci. Technol., 70, 742 (2014)
Adnadjevic BK, Jovanovic JD, J. Mol. Catal. A-Chem., 356, 70 (2012)
Mazo P, Rios L, Estenoz D, Sponton M, Chem. Eng. J., 185-186, 347 (2012)
Qiao W, Wang W, Xun R, Lu WJ, Yin KQ, J. Mater. Sci., 43(7), 2431 (2008)
Dogan I, Sanin FD, Water Res., 43, 2139 (2009)
Kunlan L, Lixin X, Jun L, Jun P, Guoying C, Zuwei X, Carbohydr. Res., 331, 9 (2001)
APHA, Standard Methods for the Examining of Water and Wastewater, 21st ed., American Public Health Association, Washington DC, USA, 2005.
Eskicioglu C, Kennedy KJ, Droste RL, Water Res., 40, 3725 (2006)
Tyagi VK, Lo SL, Renew. Sust. Energ. Rev., 18, 288 (2013)
Park WJ, Ahn JH, Hwang SH, Lee CK, Bioresour. Technol., 101, S13 (2010)
Eskicioglu C, Terzian N, Kennedy KJ, Droste RL, Hamoda M, Water Res., 41, 2457 (2007)
Jin Z, Wen HZ, Water Res., 43, 3493 (2009)
Tiehm A, Nickel K, Zellhorn M, Neis U, Water Res., 35, 2003 (2001)
Show KY, Mao T, Lee DJ, Water Res., 41, 4741 (2007)
Cho SK, Shin HS, Kim DH, Bioresour. Technol., 121, 480 (2012)
Li HQ, Xu J, Bioresour. Technol., 127, 112 (2013)
Fonts I, Azuara M, Gea G, Murillo MB, J. Anal. Appl. Pyrolysis, 85, 184 (2009)
Eskicioglu C, Kennedy KJ, Droste RL, Desalination, 248(1-3), 279 (2009)
Deumier F, Bohuon P, J. Food Eng., 68(3), 377 (2005)

[Referenced By]

[1] Perez-Elvira SI, Diez PN, Fernandez-Polanco F, Rev. Environ. Sci. Biotechnol., 5, 375 (2006)

[2] Neyens E, Baeyens J, Creemers C, J. Hazard. Mater., 97(1-3), 295 (2003)

[3] Tyagi VK, Lo SL, Bioresour. Technol., 119, 105 (2012)

[4] Assawamongkholsiri T, Reungsang A, Pattra S, Int. J. Hydrog. Energy, 38(14), 6146 (2013)

[5] Muller J, Lehne G, Schwedes J, Battenberg S, Naveke R, Kopp J, Water Sci. Technol., 38, 425 (1998)

[6] Lin JG, Chang CN, Chang SC, Bioresour. Technol., 62, 85 (2007)

[7] Choi HN, Jeong SW, Chung YJ, Bioresour. Technol., 92, 198 (2006)

[8] Pham TTH, Brar SK, Tyagi RD, Surampalli RY, J. Hazard. Mater., 163(2-3), 891 (2009)

[9] Byun IG, Lee JH, Lee JM, Lim JS, Park TJ, Water Sci. Technol., 70, 742 (2014)

[10] Adnadjevic BK, Jovanovic JD, J. Mol. Catal. A-Chem., 356, 70 (2012)

[11] Mazo P, Rios L, Estenoz D, Sponton M, Chem. Eng. J., 185-186, 347 (2012)

[12] Qiao W, Wang W, Xun R, Lu WJ, Yin KQ, J. Mater. Sci., 43(7), 2431 (2008)

[13] Dogan I, Sanin FD, Water Res., 43, 2139 (2009)

[14] Kunlan L, Lixin X, Jun L, Jun P, Guoying C, Zuwei X, Carbohydr. Res., 331, 9 (2001)

[15] APHA, Standard Methods for the Examining of Water and Wastewater, 21st ed., American Public Health Association, Washington DC, USA, 2005.

[16] Eskicioglu C, Kennedy KJ, Droste RL, Water Res., 40, 3725 (2006)

[17] Tyagi VK, Lo SL, Renew. Sust. Energ. Rev., 18, 288 (2013)

[18] Park WJ, Ahn JH, Hwang SH, Lee CK, Bioresour. Technol., 101, S13 (2010)

[19] Eskicioglu C, Terzian N, Kennedy KJ, Droste RL, Hamoda M, Water Res., 41, 2457 (2007)

[20] Jin Z, Wen HZ, Water Res., 43, 3493 (2009)

[21] Tiehm A, Nickel K, Zellhorn M, Neis U, Water Res., 35, 2003 (2001)

[22] Show KY, Mao T, Lee DJ, Water Res., 41, 4741 (2007)

[23] Cho SK, Shin HS, Kim DH, Bioresour. Technol., 121, 480 (2012)

[24] Li HQ, Xu J, Bioresour. Technol., 127, 112 (2013)

[25] Fonts I, Azuara M, Gea G, Murillo MB, J. Anal. Appl. Pyrolysis, 85, 184 (2009)

[26] Eskicioglu C, Kennedy KJ, Droste RL, Desalination, 248(1-3), 279 (2009)

[27] Deumier F, Bohuon P, J. Food Eng., 68(3), 377 (2005)