PDF Publication Title:
Text from PDF Page: 002
Jurnal PRESIPITASI Vol. 3 No.2 September 2007, ISSN 1907-187X compound and produce more CO2 and hydrogen. Phase 3 is a methanogenesis where anaerobic bacteria is growing and producing lots of methane. Phase 4 is the early maturation stage where gas production remains steady. Composition of landfill gas produced is 40% to 60% methane and 40% to 60% carbon dioxide (ATSDR, 2001). These gases will be continuously produced for 20 years and will cease when landfill is at maturation phase. The total amount of LFG generated in the current year (LFGt) is estimated using: Figure 2 Landfill gas production phases Source: (USEPA, 1997) LFG is then collected through passive or active system. Passive system involves wells similar to groundwater well where gas is drawn to the well because of different pressure between landfill and the atmosphere. Active system incorporated a vacuum on the well to create greater potential in the wells and extract gas from landfill (Figure 3). The extracted gas is then purified by gas scrubber to remove carbon dioxide, to produce LFG. Source: (AGO, 1997) The value of c is zero if the landfill is still accepting waste. The value of e is based on the Napierian or natural logarithm (approximately 2.718). Lo is estimated from waste composition and degradable organic content which values are provided in Table 1. According to Vogt, Peyser, and Peterson (1996), total LFG yield per kilogram MSW is 0.17 m3/kg (AGO, 1997). Table 1 Amount of carbon expressed in the percentage of fresh weight Material Percentage Paper and 40 paperboard Textiles 40 Wood and straw 30 Garden and 17 park waste (green waste) Food waste 15 Source: (AGO, 1997) WHY USING LFG FOR ELECTRICITY GENERATION The benefit from using methane as biogas to generate electricity can be calculated based on CO2 equivalent emission. For instance, for 1 MW gas generator needs around 700 m3 of 50% methane per hour (REM and RMIT, 1999) and the amount of CO2 conserved from the atmosphere: 700m3 /unitof 50%CH4 ×100MW =70,000m3 of 50%CH4 70,000m3 of 50%CH4 ×0.672=47,040kgof CH4 47,040kgof CH4 ×21=987,840kgof CO2 =988tonof CO2 Thus 100 MW landfill gas power plants can save greenhouse gases of approximately 988 ton of CO2 equivalent emission. 10 Figure 3 Active gas collection system in landfill Source: (ATSDR) LFGt=L ⋅R(e−kc −e−kt) o Where: Label Unit Lo m3/kg R kg/yr t number of years c number of years k 1/years Factor Total LFG yield per kg of municipal solid waste (MSW) Filling rate Time since landfill opened Time since landfill closure Annual rate of LFG generationPDF Image | ELECTRICITY GENERATION FROM LANDFILL GAS
PDF Search Title:
ELECTRICITY GENERATION FROM LANDFILL GASOriginal File Name Searched:
hal_9_15__sri_hapsari_.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |