|
|
Optimization of short-term aerobic pretreatment process for municipal solid waste landfilling |
NI Zhe, LIU Jian-guo, ZHOU Tian-hang, ZHANG Ming-wu |
Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education, School of Environment, Tsinghua University, Beijing 100084, China |
|
|
Abstract Synergetic effect of aeration and pile temperature on VS and water content removal and biochemical components degradation during short-term aerobic pretreatment process prior to municipal solid waste (MSW) landfilling were investigated. Simulated organic fraction of MSW (OFMSW) was used as substrate. The results showed that VS rapid degradation was obviously occurred in the initial stage (0~6d), accounting for 68%~85% of total VS degraded in the whole experimental period; simultaneously, approximate 15%~26% water was removed in the forms of leachate and vapor, and extending aeration time could evaporate more water. In the initial stage, the temperature of pile increased to thermophilic condition (50 to 55℃) by self-heating, which was more beneficial for carbohydrates degradation than the mesophilic condition (42 to 47℃) of the controlled pile, while was insignificant to crude protein degradation. Yet, crude fat and lignocellulose have higher degradation rate under mesophilic condition (42 to 47℃). As the pretreatment period extended to 14 days, different synergetic operations combined aeration and pile temperature exhibited minor difference on the removal of VS and moisture. This study showed that a 6 day aerobic process with the pile temperature between 50 to 55℃ was a cost-efficient pretreatment method prior to MSW landfilling.
|
Received: 10 July 2015
|
|
|
|
|
[1] |
徐亚,颜湘华,董路,等.基于Landsim的填埋场长期渗漏的污染风险评价[J]. 中国环境科学, 2014,34(5):1355-1360.
|
[2] |
Yue D, Han B, Sun Y, et al. Sulfide emissions from different areas of a municipal solid waste landfill in China[J]. Waste Management, 2014,34(6):1041-1044.
|
[3] |
郭汝阳,陈云敏,李育超,等.考虑pH值和挥发性脂肪酸影响的填埋城市固废厌氧降解模型[J]. 中国环境科学, 2015,35(1):147-156.
|
[4] |
Scaglia B, Salati S, Di Gregorio A, et al. Short mechanical biological treatment of municipal solid waste allows landfill impact reduction saving waste energy content[J]. Bioresource Technology, 2013,143:131-138.
|
[5] |
Cossu R, Lai T, Pivnenko K. Waste washing pre-treatment of municipal and special waste[J]. J. Hazardous Materials, 2012, 207-208:65-72.
|
[6] |
Adani F, Baido D, Calcaterra E, et al. The influence of biomass temperature on biostabilization-biodrying of municipal solid waste[J]. Bioresource Technology, 2002,83:173-179.
|
[7] |
Grilli S, Giordano A, Spagni A. Stabilisation of biodried municipal solid waste fine fraction in landfill bioreactor[J]. Waste Management, 2012,32(9):1678-1684.
|
[8] |
Norbu T, Visvanathan C, Basnayake B. Pretreatment of municipal solid waste prior to landfilling[J]. Waste Management, 2005, 25(10):997-1003.
|
[9] |
Montejo C, Tonini D, Márquez M D C, et al. Mechanical-biological treatment:Performance and potentials. An LCA of 8MBT plants including waste characterization[J]. Journal of Environmental Management, 2013,128:661-673.
|
[10] |
Von Felde D, Heiko D. Full-scale experiences with mechanical-biological pretreatment of municipal solid waste and landfilling[J]. Waste Management and Research, 1999,17(6):520-526.
|
[11] |
Qi G, Yue D, Liu J, et al. Impact assessment of intermediate soil cover on landfill stabilization by characterizing landfilled municipal solid waste[J]. Journal of Environmental Management, 2013,128:259-265.
|
[12] |
Zheng W, Khamphe P, Lu F, et al. Evaluation of a classification method for biodegradable solid wastes using anaerobic degradation parameters[J]. Waste Management, 2013,33:2632-2640.
|
[13] |
何品晶,邵正浩,张冬青,等.垃圾生物稳定化预处理中填埋污染潜力的变化[J]. 同济大学学报(自然科学版), 2009,37(6):791-795.
|
[14] |
Gerassimidou S, Evangelou A, Komilis D. Aerobic biological pretreatment of municipal solid waste with a high content of putrescibles:effect on landfill emissions[J]. Waste Management and Research, 2013,31(8):783-791.
|
[15] |
Mansour A A, Motte A, Pallier V, et al. Assessment of the aerobic preparation and bottom ash addition as pretreatment steps before landfilling:Impact on methanogenesis kinetics and leachate parameters[J]. Waste Management, 2012,32:1864-1872.
|
[16] |
黄文雄,苏红玉,黄丹丹,等.通风方式对高含水率垃圾生物干化的影响[J]. 中国环境科学, 2012,32(8):1480-1486.
|
[17] |
杨列,陈朱蕾,唐素琴,等.生物预处理过程中有机质与水分对垃圾热值影响研究[J]. 环境卫生工程, 2014,22(4):19-21.
|
[18] |
Martínez-Valdez F J, Martínez-Ramírez C, Martínez-Montiel L, et al. Rapid mineralisation of the organic fraction of municipal solid waste[J]. Bioresource Technology, 2015,180:112-118.
|
[19] |
He X, Xi B, Wei Z, et al. Spectroscopic characterization of water extractable organic matter during composting of municipal solid waste[J]. Chemosphere. 2011,82(4):541-548.
|
[20] |
Ahn H K, Richard T L, Choi H L. Mass and thermal balance during composting of a poultry manure-Wood shavings mixture at different aeration rates[J]. Process Biochemistry, 2007,42(2):215-223.
|
[21] |
Cai L, Chen T B, Gao D, et al. Influence of forced air volume on water evaporation during sewage sludge bio-drying[J]. Water Research, 2013,47:4767-4773.
|
[22] |
Zhao L, Gu W, He P, et al. Effect of air-flow rate and turning frequency on bio-drying of dewatered sludge[J]. Water Research, 2010,44:6144-6152.
|
[23] |
Zhou H, Chen T, Gao D, et al. Simulation of water removal process and optimization of aeration strategy in sewage sludge composting[J]. Biores. Technol., 2014,171:452-460.
|
[24] |
Guo R, Li G, Jiang T, et al. Effect of aeration rate, C/N ratio and moisture content on the stability and maturity of compost[J]. Biores. Technol., 2012,112:171-178.
|
[25] |
Mondini C, Fornasier F, Sinicco T. Enzymatic activity as a parameter for the characterization of the composting process[J]. Soil Biology and Biochemistry, 2004,36(10):1587-1594.
|
[26] |
Zhang D, He P, Shao L, et al. Biodrying of municipal solid waste with high water content by combined hydrolytic-aerobic technology[J]. J. Environ. Sci.-China, 2008,20(12):1534-1540.
|
[27] |
Liang C, Das K C, Mcclendon R W. The influence of temperature and moisture contents regimes on the aerobic microbial activity of a biosolids composting blend[J]. Biores. Technol., 2003, 86(2):131-137.
|
[28] |
Steger K, Jarvis Å, Vasara T, et al. Effects of differing temperature management on development of Actinobacteria populations during composting[J]. Research in Microbiology, 2007,158(7):617-624.
|
[29] |
Eklind Y, Sundberg C, Smårs S, et al. Carbon Turnover and Ammonia Emissions during Composting of Biowaste at Different Temperatures[J]. J. Environ. Quality, 2007,36(5):1512-1520.
|
[30] |
邵立明,何品晶,陈活虎.生物质分类表征温度对蔬菜废物好氧降解过程的影响[J]. 环境科学学报, 2006,26(8):1302-1307.
|
[31] |
Raut M P, Prince William S P M, Bhattacharyya J K, et al. Microbial dynamics and enzyme activities during rapid composting of municipal solid waste-A compost maturity analysis perspective[J]. Biores. Technol., 2008,99(14):6512-6519.
|
[32] |
Chen W, Westerhoff P, Leenheer J A, et al. Fluorescence Excitation-Emission Matrix Regional Integration to Quantify Spectra for Dissolved Organic Matter[J]. Environental Science & Technology, 2003,37(24):5701-5710.
|
[33] |
姚波,席北斗,魏自民,等.不同接种方式对生活垃圾堆肥水溶性有机物荧光特性影响[J]. 光谱学与光谱分析, 2011,31(3):714-718.
|
[34] |
何小松,席北斗,魏自民,等.堆放垃圾渗滤液水溶性有机物的荧光特性[J]. 中国环境科学, 2010,30(6):752-757.
|
|
|
|