Compartment model of aerobic and anaerobic biodegradation in a municipal solid waste landfil

Kim, Sang-Yul; Tojo, Yasumasa; Matsuto, Toshihiko

doi:10.1177/0734242x07079148

Cited by 22 publications

(6 citation statements)

References 12 publications

(16 reference statements)

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“…It is accepted that the natural chemical stoichiometry varies in the biodegradable fraction as the generated CH4 to CO2 molar ratio uncertainty may vary from 0.50 the default value to 0.55 [9][10][11]17]. The rate equation can be derived from a general carbohydrate formula [C][CH2O]n-1 which is used to represent the simplified structure of one ring of carbohydrate from empirical formulae [30,31] to illustrate the role of moisture in creating sugars as the intermediate precursor for the degradation of organic waste.…”

Section: The Role Of Moisture In Msw Landfill Degradationmentioning

confidence: 99%

Demonstrating Regional Climate and Meteorological Sensitivity in Landfill Methane Inventories from Historical Californian Databases

Dumble¹

2022

Adv Environ Eng Res

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The urgency to manage global methane emissions has been acknowledged with international pledges to reduce 2020 levels by 30% by 2030. Carbon management requires effective tools to monitor changes, including those from significant sources including waste disposed on land. The first order degradation model used to determine landfill methane emissions, has been described by researchers as highly variable, insensitive and inadequate, despite recent attempts to explain microclimate impacts on methane oxidation. The development of detailed regional inventories is hampered by these variables. The availability of historical waste management and meteorological data in California, enables a theoretical review and modelling of meteorological moisture changes with methane generation data in a region of decadal drought. This study identifies a novel approach in the modelling of regional optimisation of variable seasonal parameters of moisture and methane oxidation based on the adjustment of the methane correction factor (MCF) generally assumed to be MCF = 1 for managed sites, that is optimised as MCF<sub>site</sub> ≠ 1 as the average regional MCF<sub>all sites</sub>, → 1 (Range: <1, ≥1). Regional annual unmitigated methane emitted in December 2010 after methane recovery, oxidation and flaring is estimated at 0.40 million tonnes, falling to 0.31 million tonnes in 2011 and back to 0.40 million tonnes in 2012 (Pr < 0.01, n = 370). as meteorological conditions returned to the changing decadal norm. Meteorological and climate sensitivity is demonstrated in relation to the regional water balance, spatial distribution of landfill site moisture levels, satellite imagery of 2012 wildfire intensity ranges, the 2011 El Nino impacts and independent data sources. The method provides accurate regional methane assessments inclusive of soil and cover material oxidation. This will primarily benefit developing countries where landfill remains a dominant option, enabling the development of database linked satellite monitoring and detailed regional landfill climate emission inventories.

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Section: The Role Of Moisture In Msw Landfill Degradationmentioning

confidence: 99%

Demonstrating Regional Climate and Meteorological Sensitivity in Landfill Methane Inventories from Historical Californian Databases

Dumble¹

2022

Adv Environ Eng Res

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“…Berdasarkan komposisi biodegradasinya sampah terdiri dari sampah biodegradasi cepat, sedang dan non biodegradabel. Seperti yang dilakukan oleh (Kim, et al, 2007). Dalam kegiatan ini didiskripsikan menjadi tiga fase di dalam landfill yaitu fase padat, cair dan gas.…”

Section: Pendahuluanunclassified

“…Dari hasil penelitian diketahui bahwa Bahan organik yang terlindikan terjadi fluktuasi pada umur 1 tahun dan mulai stabil pada setelah umur 10 tahun untuk landfill Anaerobik. Sedangkan landfill aerobik terjadi lebih cepat, (Kim et al, 2007).…”

Section: Pendahuluanunclassified

Pengaruh Ukuran dan Fraksi Organik Terhadap Kuantitas dan Kualitas Timbulan Lindi

Kasam

Sarto

Syamsiah

et al. 2013

jstl

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Timbunan sampah pada landfill (TPA) akan mengalami degradasi dan akan menghasilkan cairan (lindi) baik kuantitas maupun kualitasnya. Kuantitas dan kualitas timbulan lindi dari sampah perkotaan akan dipengaruhi oleh beberapa faktor seperti: komposisi dan karakteristik sampah, kadar air, umur sampah dan kondisi cuaca (iklim). Pada kegiatan studi ini bertujuan untuk mengetahui pengaruh komposisi sampah (jumlah fraksi organik) dan karakteristik sampah (ukuran butiran) terhadap karakteristik timbulan lindi. Dalam rangka untuk mendapatkan tujuan studi, maka metode yang diterapkan adalah melakukan percobaan laboratorium menggunakan reaktor biodegradasi volume 1500 mL. Dalam percobaan ini digunakan dua kelompok reaktor yaitu; kelompok pertama, digunakan untuk pengujian pengaruh persentase fraksi organik, sedangkan kelompok kedua dimaksudkan untuk pengujian pengaruh ukuran butiran sampah terhadap karakteristik lindi. Sebagai parameter kualitas lindi ditentukan TSS, BOD, dan COD, sedangkan parameter kuantitas lindi adalah volume cairan yang keluar dari reaktor. Berdasarkan hasil percobaan diketahui bahwa jumlah (persentase) fraksi organik dan ukuran butiran sampah dapat berpengaruh terhadap karakteristik timbulan lindi. Secara keseluruhan konsentrasi TSS, BOD, dan COD semakin besar sejalan dengan bertambahnya persentase fraksi organik. Hal yang sama terjadi untuk ukuran butiran samaph semakin kecil, maka TSS, BOD, dan COD semakin besar. Adapun volume timbulan lindi

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“…Gas transfer phenomenon in waste cell of Indonesian landfill was not clearly described by the study of landfill gas generation [7] nor by the study of aeration in composting process [8]. Understanding gas transfer phenomenon is important for modeling aerobic and anaerobic biodegradation in a municipal solid waste landfill [9] as well as for analyzing air and landfill gas movement through passive gas vents [10].…”

Section: Introductionmentioning

confidence: 99%

Determination of Intrinsic Permeability for Packed Waste of Indonesian Solid Waste

Rahardyan¹,

Dwirestiani²,

Padmi³

2010

itbj.eng.sci.

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Gas permeability and intrinsic permeability are the major parameters to promote aeration for packed waste. The objectives of this research are to identify physical parameters of gas transfer from a various type of packed wastes and examine ventilation design theory for landfill to enhance waste stabilization. Method to determine value of gas permeability and intrinsic permeability for packed waste is by flushing the packed column containing various type and physical characteristics of wastes with an air pump. Permeability was calculated by measuring pressure gradient on sampling points of the column using inclined manometer at distance 10 cm, 23 cm, 46 cm, 69 cm, 92 cm and 115 cm from origin. Gas permeability is specifically relied on physical parameters of wastes as follows, density, moisture content, particle size and gas velocity on the surface of compacted waste layer. Compost has finer pore structure and smaller pore size than leaves as well as mixed organic (65%) and inorganic wastes (35%). The experiment found the intrinsic permeability of leaves waste are in the order of 10-11 to 10-8 m2, 10-11 to 10-9 m2 for compost and 10-9 m2 for mixed organic (65%) and inorganic wastes (35%)

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Compartment model of aerobic and anaerobic biodegradation in a municipal solid waste landfil

Cited by 22 publications

References 12 publications

Demonstrating Regional Climate and Meteorological Sensitivity in Landfill Methane Inventories from Historical Californian Databases

Demonstrating Regional Climate and Meteorological Sensitivity in Landfill Methane Inventories from Historical Californian Databases

Pengaruh Ukuran dan Fraksi Organik Terhadap Kuantitas dan Kualitas Timbulan Lindi

Determination of Intrinsic Permeability for Packed Waste of Indonesian Solid Waste

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