scholarly journals Characterization of Refuse Derived Fuel Production from Municipal Solid Waste: The Case Studies in Latvia and Lithuania

2020 ◽  
Vol 24 (3) ◽  
pp. 112-118
Author(s):  
Dace Âriņa ◽  
Rūta Bendere ◽  
Gintaras Denafas ◽  
Jānis Kalnačs ◽  
Mait Kriipsalu
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Calorific Value ◽  
Ash Content ◽  
Fuel Production ◽  
Heating Value ◽  
Refuse Derived Fuel ◽  
Morphological Composition ◽  
The Mean

AbstractThe authors determined the morphological composition of refuse derived fuel (RDF) produced in Latvia and Lithuania by manually sorting. The parameters of RDF (moisture, net calorific value, ash content, carbon, nitrogen, hydrogen, sulphur, chlorine, metals) was determined using the EN standards. Comparing obtained results with data from literature, authors have found that the content of plastic is higher but paper and cardboard is lower than typical values. Results also show that the mean parameters for RDF can be classified with the class codes: Net heating value (3); chlorine (3); mercury (1), and responds to limits stated for 3rd class of solid recovered fuel. It is recommended to separate biological waste at source to lower moisture and ash content and increase heating value for potential fuel production from waste.

scholarly journals Municipal solid waste higher heating value prediction from ultimate analysis using multiple regression and genetic programming techniques

2018 ◽  
Vol 37 (6) ◽  
pp. 578-589 ◽  
Author(s):  
Imane Boumanchar ◽  
Younes Chhiti ◽  
Fatima Ezzahrae M’hamdi Alaoui ◽  
Abdelaziz Sahibed-dine ◽  
Fouad Bentiss ◽  
...  
Keyword(s):  
Genetic Programming ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Multiple Regression ◽  
Calorific Value ◽  
Heating Value ◽  
Ultimate Analysis ◽  
Msw Management ◽  
Important Challenge ◽  
Programming Techniques

Municipal solid waste (MSW) management presents an important challenge for all countries. In order to exploit them as a source of energy, a knowledge of their calorific value is essential. In fact, it can be experimentally measured by an oxygen bomb calorimeter. This process is, however, expensive. In this light, the purpose of this paper was to develop empirical models for the prediction of MSW higher heating value (HHV) from ultimate analysis. Two methods were used: multiple regression analysis and genetic programming formalism. Both techniques gave good results. Genetic programming, however, provides more accuracy compared to published works in terms of a great correlation coefficient (CC) and a low root mean square error (RMSE).

scholarly journals PENGARUH SUHU DAN KONSENTRASI PEREKAT TERHADAP KARAKTERISTIK BRIKET BIOARANG BERBAHAN BAKU TANDAN KOSONG KELAPA SAWIT DENGAN PROSES PIROLISIS

Konversi ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 16
Author(s):  
Yuli Ristianingsih ◽  
Ayuning Ulfa ◽  
Rachmi Syafitri K.S
Keyword(s):  
Solid Waste ◽  
Palm Oil ◽  
Calorific Value ◽  
Volatile Matter ◽  
Ash Content ◽  
Crude Palm Oil ◽  
Fixed Carbon ◽  
Heating Value ◽  
Empty Fruit Bunches ◽  
Rate Of Combustion

Abstrak-Tandan Kosong Kelapa Sawit merupakan limbah padat hasil produksi Crude Palm Oil (CPO). Setiap 1(satu) ton tandan buah segar dihasilkan 23% limbah padat. Limbah padat ini dapat di konversi menjadi bahan bakar pengganti minyak yaitu briket. Briket bioarang adalah bahan bakar padat yang dapat digunakan sebagai bahan bakar alternatif pengganti bahan bakar yang berasal dari fosil seperti minyak dan gas. Penelitian ini bertujuan untuk mengetahui pengaruh suhu pirolisis terhadap yield bioarang yang dihasilkan dan mengetahui pengaruh konsentrasi perekat kanji (5% w/w, 10% w/w, 15% w/w) terhadap karakteristik briket hasil penelitian (kadar air, volatile matter, kadar abu, fixed carbon, nilai kalor dan laju pembakaran). Penelitian dilakukan dengan metode pirolisis yaitu proses pembakaran bahan baku dalam reaktor pirolisis dengan menggunakan suhu yang tinggi dan tanpa atau dengan sedikit oksigen. Pirolisis dilakukan selama 2,5 jam dengan variasi suhu yaitu 350°C, 400°C, 450°C dan 500°C. Arang yang dihasilkan dicampur dengan perekat sesuai variasi dan dicetak menjadi briket. Briket kemudian dianalisa kadar air, kadar abu, kadar karbon, kadar zat terbang, nilai kalor dan laju pembakaran. Briket dengan yield tertinggi terdapat pada suhu 350°C sebesar 51,53% dan yield terendah pada suhu 500°C sebesar 26,03%. Briket hasil penelitian ini telah memenuhi standar mutu briket sebagai bahan bakar dilihat dari nilai kalor. Komposisi optimal antara perekat kanji dan arang TKKS hasil pirolisis yaitu pada 5%:95% yang menghasilkan nilai kalor terbesar yaitu 6748,15kal/g.  Kata kunci : Briket Bioarang, Pirolisis, Tandan Kosong Kelapa Sawit                Abstract-Palm Oil Empty Fruit Bunches are solid waste from Crude Palm Oil (CPO industry). For 1 ton of fresh fruit bunches produced 23% of solid waste. This solid waste can be converted into alternative energy that called briquettes. Briquettes are solid fuel that can be used as an alternative fuel replacement for fossil fuels such as oil and gas. This study aims to determine the effect of temperature on the yield generated briquettes and the effect of stach adhesive concentration (5, 10 and 15% wt) to briquettes characteristics (moisture content, volatile matter, ash content, fixed carbon, calorific value and the rate of combustion). In this reseacrh, two kilograms of palm oil empty fruit bunches was burned using pyrolisis reactor at different temperatur (350, 400, 450 and 5000C) for 2.5 hour. Charcoal produced was mixed with an adhesive in accordance variations and molded into briquettes. Briquettes then analyzed the water content, ash content, carbon content, volatile matter content, heating value and rate of combustion. The maximum yield of briquettes which was obtained in this research is 51.53% at temperature 3500C and the lowest yield at temperature of 500 ° C by 26.03%. Briquettes results of this study have met the quality standards of fuel briquettes as seen from the heating value. Optimal adhesive composition between starch and charcoal TKKS is 5%: 95% that generates highest calorific value about 6748.15kal/ g. Keywords: Briquette Bioarang, Pyrolysis, oil palm empty bunches

scholarly journals ANALYSIS OF THE ENERGY CHARACTERISTICS OF COMPONENTS OF MUNICIPAL SOLID WASTE OF A CITY WITH A POPULATION OF 300 000 PEOPLE

2018 ◽  
Vol 40 (2) ◽  
pp. 33-40
Author(s):  
O.I. Sigal ◽  
L.I. Vorobiov ◽  
N.Y. Pavliuk ◽  
R.V. Serhiienko
Keyword(s):  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Experimental Studies ◽  
Calorific Value ◽  
Ash Content ◽  
Domestic Waste ◽  
Solid Domestic Waste ◽  
Energy Characteristics ◽  
Integrated Waste Management

The results of experimental studies of humidity, ash content, calorific value for сomponents of municipal solid waste in Cherkassy city are presented. The results of the research are used to develop an integrated waste management and recycling system in the Cherkassy city.  The waste management strategy has been adopted in Ukraine. It determines the main directions of reforming the system of sanitary cleaning of cities in order to minimize environmental pollution in accordance with EU standards. In the process of preparation of the regional implementation plan for the Strategy in Cherkassy, a study of the morphology, energy and environmental characteristics of the components of solid domestic waste (SDW) was made. This article presents the results of experimental studies of humidity, calorific value and ash content for 8 components of waste: paper, cardboard, composite materials, textiles, hygiene products, plastic, other combustible materials, wood shavings are presented. Humidity is also determined in organic residues and in fine fractions. The investigations were carried out at the experimental stand of the Institute of Technical Thermophysics of the National Academy of Sciences of Ukraine. Due to the absence in Ukraine of standards for the study of energy characteristics of solid waste, the measurements were carried out in accordance with standards for solid organic fuels, which slightly differ from the EU methods for the study of solid waste. In order to develop regional integrated waste management plans within the framework of the strategy implementation, based on the qualitative analysis of MSW components, it is necessary to develop standards for determining the energy characteristics of SDW in line with European normative documents. The study of the energy characteristics of solid waste showed a significant heterogeneity in the components of solid waste, which significantly complicated the determination of characteristics and led to a considerable scatter of results and an increase in measurement uncertainty. This happened due to low weight and the need for thorough homogenization of the sample, which was experimentally investigated in accordance with the method of preparation of an analytical sample. The article analyzes need for adaptation of the European methods of detailed morphology of solid domestic waste in Ukraine, which is necessary for separate waste collection. The results of the research are used to develop an integrated waste management and recycling system in the city of Cherkassy.

scholarly journals Refuse Derived Fuel (RDF) from Urban Waste using Biodrying Process: Review

2020 ◽  
Vol 17 (1) ◽  
pp. 62-74
Author(s):  
Mochammad Chaerul ◽  
Annisa Kusuma Wardhani
Keyword(s):  
Organic Matter ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Water Content ◽  
Biological Treatment ◽  
Calorific Value ◽  
Scientific Journals ◽  
Research Papers ◽  
Urban Waste ◽  
Refuse Derived Fuel

The utilization of waste into fuel (Refuse Derived Fuel, RDF) is an alternative to overcome the problem of municipal solid waste (MSW). Many processes can be applied to produce RDF including through biodrying process. Biodrying is a part of Mechanical-Biological Treatment (MBT) aiming to reduce water content in the waste by utilizing heat generated from microorganism activities while degrading organic matter in the waste, thus the calorific value will increase. The paper aims to make a review from various research papers on biodrying process published in scientific journals, so it becomes one of reference on further research on biodrying process by considering the characteristics of waste in Indonesia. The review has been conducted by focusing on several important aspects on the research such as operation principle, reactor design configuration, parameters to be examined, and the characteristics of feed and product.

Municipal solid waste landfill age and refuse-derived fuel

2020 ◽  
pp. 0734242X2096183
Author(s):  
Ing-Jia Chiou ◽  
Ching-Ho Chen
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Flame Temperature ◽  
Calorific Value ◽  
Squeeze Pressure ◽  
Sustainable Environment ◽  
Refuse Derived Fuel ◽  
Landfill Sites ◽  
Mine Sites ◽  
Closed Landfill

Landfill sites are hard to obtain in Taiwan. Municipal solid waste (MSW) in the closed landfill sites has high combustible content and calorific value (CV). Therefore, activating the closed landfill sites as municipal mine sites to prolong their service life will promote a sustainable environment. This study transforms combustibles from the closed municipal landfill sites of different landfill ages (LAs) into refuse-derived fuel (RDF) through pretreatment and squeeze forming equipment, so to investigate the characteristics of the MSW of different LAs, and the manufacturing conditions and firing behaviour of RDF. The results indicate that the proportion of the combustibles in MSW declines as the LA grows, and therefore the proportions of both incombustible materials and soil and debris correspondingly increased. The LA of the MSW is thus negatively correlated with the CV. The MSW at the LA of 10 years still has high potential as fuel material. The fixed carbon initiation temperatures (i.e. ignition temperatures) of combustibles of the MSW at the LAs of 1 year, 5 years and 10 years are 259°C, 256°C and 245°C, respectively. The CV and flame temperature of the RDF increase slightly with the increasing squeeze temperature (ST) at 100–120°C, but it will decrease when the ST reaches 130°C. Therefore, this study recommends the squeeze pressure of the RDF as 41.65 ± 8.24 kg cm−2, ST 110°C and combustible size 10–20 mm.

Thermogravimetric Study of Refuse Derived Fuel Produced from Municipal Solid Waste of Kazakhstan

2021 ◽  
Vol 11 (3) ◽  
pp. 1219
Author(s):  
Botagoz Kuspangaliyeva ◽  
Botakoz Suleimenova ◽  
Dhawal Shah ◽  
Yerbol Sarbassov
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Calorific Value ◽  
Thermal Conversion ◽  
Combustion Kinetics ◽  
Heating Rates ◽  
Gross Calorific Value ◽  
Management Options ◽  
Refuse Derived Fuel ◽  
Differential Thermogravimetry

Efficient waste management, including proper utilization of municipal solid waste (MSW), is imperative for a sustainable future. Among several management options, pyrolysis and combustion of MSW has regained interest because of improved combustion techniques. This work aims to investigate the thermal conversion and combustion characteristics of refuse derived solid fuel (RDF) samples and its individual compounds collected from Nur-Sultan’s MSW landfills. The waste-derived solid RDF samples originally consist of textile, mixed paper, and mixed plastic. In particular, the samples, including RDF and its three constituent components, were analyzed in the temperature range of 25 to 900 °C, at three different heating rates, by thermogravimetric method. The gross calorific value for RDF derived from Nur-Sultan’s MSW was determined to be 23.4 MJ/kg. The weight loss rates of the samples, differential thermogravimetry (DTG), and kinetic analysis were compared between individual RDF components and for the mixed RDF. Combustion kinetics models were calculated using Flynn–Wall–Ozawa (FWO), Kissinger–Akahira–Sunose (KAS), and Friedman methods. The results revealed that first decomposition of RDF samples was observed at the range of 180–370 °C. Moreover, the activation energy for conversion of RDF was observed to be the highest among the constituent components and gradually decreased from 370 to 140 kJ/kmol.

Characterization and projection of dry season municipal solid waste for energy production in Ilorin metropolis, Nigeria

2021 ◽  
pp. 0734242X2098559
Author(s):  
RA Ibikunle ◽  
IF Titiladunayo ◽  
SO Dahunsi ◽  
EA Akeju ◽  
CO Osueke
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Calorific Value ◽  
Electrical Energy ◽  
Dry Season ◽  
Waste Generation ◽  
Heating Value ◽  
Characterization Study ◽  
Solid Waste Generation ◽  
Per Capita

This research investigates the quantity of municipal solid waste produced during the dry season, and its characterization at Eyenkorin dumpsite of Ilorin metropolis, along the Lagos-Ilorin express way. The physicochemical and thermal compositions of the combustible fractions of municipal solid waste were analysed, to ascertain the available calorific value. In this research, the quantity (tonnes) of waste generated, the rate of generation (kg per capita per day), its sustainability and the likely energy and power potentials in the dry season, were essentially predicted. The population responsible for municipal solid waste generation during this study was 1,120,834 people. During the characterization study from November 2018 to February 2019, it was established that 203,831 tonnes of municipal solid waste was produced during the four months of the dry season, at the rate of 1.12 kg per capita per day. It was found that 280 tonnes/day of municipal solid waste with low heating value of 19 MJ kg-1, would generate 1478 MWh of heat energy and 18 MW of electrical energy potentials discretely, and grid of 13 kW.

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