Enhancing anaerobic biodegradability and dewaterability of sewage sludge by microwave irradiation
Keywords:
sludge, microwave irradiation, biogas production, dewaterabilityAbstract
Thermal hydrolysis was an effective pretreatment for the sewage sludge by improving dewatering and anaerobic digestion but the heating was a time-consuming process. This study focused on the effects of the microwave irradiation by using high temperature and pressured system on sewage sludge hydrolysis. The results obtained in current research showed that sludge could absorb microwave energy with high efficiency and then be hydrolyzed fast. The solubilization of suspended solid (SS), volatile suspended solids (VSS) and the increasing of the level of soluble chemical oxygen demand (SCOD) in liquid fraction showed that the microwave irradiation could be shortened to 5 min under a temperature range of 80°C-170°C. The highest value of VSS dissolution ratio (36.4%) was obtained at 170°C for 30 min. The COD dissolution ratio was about 25% at 170°C. The improvement of the biogas production from both mixture sludge and waste activated sludge was 20.2% and 25.9% respectively at 170°C for 10 min. The dewaterability of sludge was greatly improved. Subsequently, the sludge volume could be reduced by 60% with microwave irradiation. Keywords: sludge, microwave irradiation, biogas production, dewaterability DOI: 10.3965/j.ijabe.20171002.2871 Citation: Gao F, Xia Z, Wang W. Enhancing anaerobic biodegradability and dewaterability of sewage sludge by microwave irradiation. Int J Agric & Biol Eng, 2017; 10(2): 224–232.References
[1] Montgomery J M. Water treatment principles and design. Wiley-Interscience, NewYork, 1985.
[2] Wang W, Luo Y X, Qiao W. Possible solutions for sludge dewatering in China. Frontiers of Environmental Science and Engineering, 2010; 4(1): 102–107.
[3] Neyens E, Baeyens J. A review of thermal sludge pre-treatment processes to improve dewaterability. J Hazard Mater, 2003; 98(1-3): 51–67.
[4] Brooks R B. Heat treatment of sewage sludge. Water Pollution Control, 1970; 69(2): 221–231.
[5] Barber W P F. Thermal hydrolysis for sewage treatment: a critical review. Wat Res, 2006; 104: 53–71.
[6] Chu C P, Lin W W, Lee D J. Thermal treatment of waste activated sludge using liquid boiling. J Environ Eng, 2002; 128(11): 1100–1103.
[7] Haug R T, LeBrun T J, Tortorici L D. Thermal pre-treatment of sludges, a field demonstration. Journal of the Water Pollution Control Federation, 1983; 55:23–34.
[8] Qiao W, Yin Z B, Wang W, Wang J, Zhang Z Z. Pilot-scale experiment on thermally hydrolyzed sludge liquor anaerobic digestion using a mesophilic expanded granular sludge bed reactor. Water Sci Technol, 2013; 68(4): 948–955.
[9] Hong S M, Park J K, Teeradej N, Lee Y O, Cho Y K, Park C H. Pretreatment of sludge with microwave for pathogen destruction and improved anaerobic digestion performance. Water Environ Res, 2006; 78(1): 76–83.
[10] Eskicioglu C, Terzian N, Kennedy K J. Athermal microwave effects for enhancing digestibility of waste activated sludge. Wat Res, 2007; 41: 2457–2466.
[11] Xing R, Guo Z, Li P. Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation. Carbohydr Res, 2005; 340(13): 2150–3
[12] Zhu S, Wu Y, Yu Z, Liao J, Zhang Y. Pretreatment by microwave/alkali of rice straw andits enzymic hydrolysis. Process Biochem, 2005; 40: 3082–3086.
[13] Bohlmann J T, Lorth C M, Drews A M, Buchholz R. Microwave high pressure thermochemical conversion of sewage sludgeas an alternative to incineration. Chem Eng Technol, 1999; 21(5): 404–409.
[14] Park B, Ahn J H, Kim J. Use of microwave pretreatment for enhanced anaerobiosis of Secondary Sludge. Water Sci Technol, 2004; 50(9): 17–23.
[15] Wojciechowska E. Application of microwaves for sewage sludge conditioning. Wat Res, 2005; 39: 4749–4754.
[16] Liao P H, Wong W T, Lo K V. Release of phosphorus from sewage sludge using microwave technology. J Environ Eng Sci, 2005; 4: 77–81.
[17] Plazl S. Hydrolysis of sucrose by conventional and microwave heating in stirred tank reactor. Chem Engg J, 1995; 59: 253–257.
[18] Zhu S D, Wu Y X, Yu Z. Comparison of three microwave/chemical pretreatment processes for enzymatic hydrolysis of rice straw. Biosyst Eng, 2006; 93(3): 279–283.
[19] Qiao W, Yan X Y, Ye J H, Sun Y F, Wang W, Zhang Z Z. Evaluation of biogas production from different biomass wastes with/withouthydrothermal pretreatment. Renew Energy, 2011; 36: 3313–3318.
[20] Wang Z J, Wang W. Enhancement of sewage sludge anaerobic digestibility by thermalhydrolysis pretreatment. Environ Sci, 2006; 26(1): 68–71.
[21] Brooks R B. Heat Treatment of activated sludge. Water Pollution Control, 1968; 592–601.
[22] Pino-Jelcic S A, Hong S M, Park J K. Enhanced anaerobic biodegradability and inactivation of fecal coliforms and salmonella Spp. in wastewater sludge by using microwave. Water Environ Res, 2006; 78(2): 209–216.
[23] Gaja S, Chauzy J, Fernandes P, Patria L, Cretenot D. Reduction of sludge production from WWTP using thermal pretreatment and enhanced anaerobic methanisation. Water Sci Technol, 2005; 46(1): 267–273.
[24] Tian Y, Fang L, Huang J. Influence of microwave pretreatment on activated sludge structure and dewaterability. China Environ Sci, 2006; 26(4): 459–463.
[25] Anderson N J, Dixon D R, Harbour P J, Scales P J. Complete characterization of thermally treated sludge. Water Sci Technol, 2002; 46(10): 51–54.
[2] Wang W, Luo Y X, Qiao W. Possible solutions for sludge dewatering in China. Frontiers of Environmental Science and Engineering, 2010; 4(1): 102–107.
[3] Neyens E, Baeyens J. A review of thermal sludge pre-treatment processes to improve dewaterability. J Hazard Mater, 2003; 98(1-3): 51–67.
[4] Brooks R B. Heat treatment of sewage sludge. Water Pollution Control, 1970; 69(2): 221–231.
[5] Barber W P F. Thermal hydrolysis for sewage treatment: a critical review. Wat Res, 2006; 104: 53–71.
[6] Chu C P, Lin W W, Lee D J. Thermal treatment of waste activated sludge using liquid boiling. J Environ Eng, 2002; 128(11): 1100–1103.
[7] Haug R T, LeBrun T J, Tortorici L D. Thermal pre-treatment of sludges, a field demonstration. Journal of the Water Pollution Control Federation, 1983; 55:23–34.
[8] Qiao W, Yin Z B, Wang W, Wang J, Zhang Z Z. Pilot-scale experiment on thermally hydrolyzed sludge liquor anaerobic digestion using a mesophilic expanded granular sludge bed reactor. Water Sci Technol, 2013; 68(4): 948–955.
[9] Hong S M, Park J K, Teeradej N, Lee Y O, Cho Y K, Park C H. Pretreatment of sludge with microwave for pathogen destruction and improved anaerobic digestion performance. Water Environ Res, 2006; 78(1): 76–83.
[10] Eskicioglu C, Terzian N, Kennedy K J. Athermal microwave effects for enhancing digestibility of waste activated sludge. Wat Res, 2007; 41: 2457–2466.
[11] Xing R, Guo Z, Li P. Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation. Carbohydr Res, 2005; 340(13): 2150–3
[12] Zhu S, Wu Y, Yu Z, Liao J, Zhang Y. Pretreatment by microwave/alkali of rice straw andits enzymic hydrolysis. Process Biochem, 2005; 40: 3082–3086.
[13] Bohlmann J T, Lorth C M, Drews A M, Buchholz R. Microwave high pressure thermochemical conversion of sewage sludgeas an alternative to incineration. Chem Eng Technol, 1999; 21(5): 404–409.
[14] Park B, Ahn J H, Kim J. Use of microwave pretreatment for enhanced anaerobiosis of Secondary Sludge. Water Sci Technol, 2004; 50(9): 17–23.
[15] Wojciechowska E. Application of microwaves for sewage sludge conditioning. Wat Res, 2005; 39: 4749–4754.
[16] Liao P H, Wong W T, Lo K V. Release of phosphorus from sewage sludge using microwave technology. J Environ Eng Sci, 2005; 4: 77–81.
[17] Plazl S. Hydrolysis of sucrose by conventional and microwave heating in stirred tank reactor. Chem Engg J, 1995; 59: 253–257.
[18] Zhu S D, Wu Y X, Yu Z. Comparison of three microwave/chemical pretreatment processes for enzymatic hydrolysis of rice straw. Biosyst Eng, 2006; 93(3): 279–283.
[19] Qiao W, Yan X Y, Ye J H, Sun Y F, Wang W, Zhang Z Z. Evaluation of biogas production from different biomass wastes with/withouthydrothermal pretreatment. Renew Energy, 2011; 36: 3313–3318.
[20] Wang Z J, Wang W. Enhancement of sewage sludge anaerobic digestibility by thermalhydrolysis pretreatment. Environ Sci, 2006; 26(1): 68–71.
[21] Brooks R B. Heat Treatment of activated sludge. Water Pollution Control, 1968; 592–601.
[22] Pino-Jelcic S A, Hong S M, Park J K. Enhanced anaerobic biodegradability and inactivation of fecal coliforms and salmonella Spp. in wastewater sludge by using microwave. Water Environ Res, 2006; 78(2): 209–216.
[23] Gaja S, Chauzy J, Fernandes P, Patria L, Cretenot D. Reduction of sludge production from WWTP using thermal pretreatment and enhanced anaerobic methanisation. Water Sci Technol, 2005; 46(1): 267–273.
[24] Tian Y, Fang L, Huang J. Influence of microwave pretreatment on activated sludge structure and dewaterability. China Environ Sci, 2006; 26(4): 459–463.
[25] Anderson N J, Dixon D R, Harbour P J, Scales P J. Complete characterization of thermally treated sludge. Water Sci Technol, 2002; 46(10): 51–54.
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Published
2017-03-31
How to Cite
Fang, G., Zhou, X., & Wei, W. (2017). Enhancing anaerobic biodegradability and dewaterability of sewage sludge by microwave irradiation. International Journal of Agricultural and Biological Engineering, 10(2), 224–232. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2871
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Renewable Energy and Material Systems
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