Converting Waste Agricultural Biomass into a Resource - UNEP

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Drying chamber The drying chamber contains three shelves and air ducts, which introduce hot air from the solar collector and the biomass furnace into the chamber at several levels. A chimney installed at the top of the chamber facilitates air circulation through the chamber. Biomass stove The biomass gasifier stove design was adapted from a cross-draft gasifier stove developed by AIT. The exhaust gas from the burner is channeled through a shell and tube type heat exchanger, which heats up the drying air. The optimal values of design parameters such as the plenum depth of the solar collector, airflow rate, perforation pitch, and collector area were established through experiments. All the materials used for the fabrication of the dryer were readily available in the local 226
market. Simple design ensured that local technicians and craftsmen could carry out the fabrication. Using only the solar collector, the dryer could dry fish from about 75% (wet basis) initial moisture content to 15% final moisture content in about two and a half days. However, by using both solar heat and biomass stove, the required 15% final moisture content could be achieved in 17 hours. Examples of Real Life Applications Pilot Demo UPB/UPLB Philippines Supplier/Contact Philippine Project Team Prof. Rowaldo R. del Mundo Head of Solar Laboratory, University of the Philippines Diliman (UPD) Quezon City, Philippines 1101. Tel: +632 434 3661; Fax: +632 4343660; E-mail: rmundo@info.com.ph Dr. Arnold R. Elepaño Associate Professor, College of Engineering and Agro-Industrial Technology Institute of Agricultural Engineering, Division of Agricultural & Bio-Process Engineering University of the Philippines Los Baños (UPLB), College, Laguna 4031, Philippines. Tel: +63 49 536 2650; Fax: +63 49 536 3291; Email: retsas@laguna.net 227
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Con v e r t i n g Wa s t e Agr i c
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Converting Waste Agricultural Bioma
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setting and identification of stake
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ACRONYMS CO2 CV DAP DTIE ESTs E-Was
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2. Rationale One of the critical ac
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3. Scope and Limitations In compili
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4. The Compendium The Project Websi
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• Basic technology information 9
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Table 1: Cellulosic Waste Biomass C
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Molding Oil Palm fruit residues Sug
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6. Recommendations The specific rec
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2-Drum Top Supported Boiler 12 USA,
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HYBRID PF 14 USA, Commercial Crop R
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operation of each to match the stea
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HYBRID RG 15 USA, Commercial Crop R
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All above work in concert to reduce
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HYBRID UF 16 USA, Commercial Crop R
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operation of each to match the stea
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TRI 17 USA, Commercial Crop Residue
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2-Drum Bottom Supported Boiler 18 U
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power boilers. Examples of Real Lif
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A fully automated continuous system
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Detailed Process Description A. Met
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Examples of Real Life Applications
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Detailed Process Description A. Met
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1. The Fibrowatt operation starts o
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HYBRID CG 21 USA, Commercial Crop R
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utilizing the most reliable system
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BTG Flash Pyrolysis Netherlands, Co
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Before processing organic materials
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a. Reactor : This was a downdraft,
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Price of Machine The total investme
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Main Products: The plant provides i
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Disadvantages to Developing Countri
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Detailed Process Description Kakira
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Example of Real Life Applications C
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Aqueous Phase Reforming (APR) 27 US
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Shelled Corn as Fuel 29 USA, Commer
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Amaizablaze/Nesco, Inc. P. O. Box 3
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HS-Tarm 5 Main Street, P.O. Box 285
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Lock Haven, PA 17745 800-582-4317 h
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P.O. Box 2075, Mankato, MN 56002 80
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The result is wood (biomass) can be
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Biomass Heating System 35 UK, Comme
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Supplier R.D. Associates, Ltd. Fuel
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Figure 5: KSM Drop Cell Unit Some o
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There is a tendency for fly ash to
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AgriPower 36 USA, Commercial Crop R
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BioMax 25 37 USA, Commercial Crop R
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102
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Solar-Biomass Hybrid Cabinet Dryer
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Two doors were designed for easy lo
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Asbestos gaskets are used while con
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The ash scraper slides through a cy
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flange attached at its bottom; this
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Other fuels such as saw dust brique
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The completed hybrid solar-biomass
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Greenfire 41 USA, Commercial Crop R
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Mayon Turbo Stove and Lo Trau Stove
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Social Considerations The stove was
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Commercial Gasifier 49 Philippines,
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The Modul-Pak ® boiler is a hybrid
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Suppliers Energy Quest, Inc. 850 So
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as well as the extraction, recovery
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oil production period in the mills.
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weatherproof and sound-attenuating
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Primenergy R-18 Gasifier producing
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Low-cost 500 kW thermal rice hull c
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Kansai Carbonized Rice Husk Gasifie
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Colusa Rice Straw / Hulls Technolog
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The customized harvester collects t
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Rice Husk Gasifier Philippines, Com
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2.5 MW Cogeneration Plant 65 Thaila
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San San Rice Husk Stove Myanmar, Co
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The technology of rice husk gasifie
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of trees can be controlled. This wo
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includes an automatic feeder, which
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Maligaya Rice Hull Stove 74 Philipp
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Parameters for Procurement Specific
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162
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a 100KW capacity Rice-Husk based Ga
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Rice husk briquette fuel 84 Banglad
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aised to US$ 6.84 million from the
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ease of removal of the char, a grat
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The rice husk gas burner for bakery
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Engineering and Environmental Manag
Page 178 and 179: Depending on the type of fuel it ha
Page 180 and 181: mode, all of the steam directed to
Page 182 and 183: pyrolysis) with air or oxygen at te
Page 184 and 185: R S for in-kind repair of boilers a
Page 186 and 187: Wood Biomass Electricity Generator
Page 188 and 189: Advantages to Developing Countries
Page 190 and 191: Celunol's "wet" biomass conversion
Page 192 and 193: up to 1.3 million liters of cellulo
Page 194 and 195: This process is done in shredder ma
Page 196 and 197: The minimal price established is $C
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Page 200 and 201: Telephone (303) 933-3135 FAX (303)
Page 202 and 203: Solar-Biomass Hybrid Cabinet Dryer
Page 204 and 205: The stove uses cylindrical honeycom
Page 206 and 207: Research Centre for Applied Science
Page 208 and 209: air. Woody biomass available in ple
Page 210 and 211: Dry Grind Ethanol 99 USA, Under Con
Page 212 and 213: Price Ethanol sells as a commodity
Page 214 and 215: 1 Figure 1. Design of the dryer Det
Page 216 and 217: footings made of brick and mortar.
Page 218 and 219: placed inside mild steel shell of l
Page 220 and 221: Biological Hydrogen Production from
Page 222 and 223: ioprocess for hydrogen production f
Page 224 and 225: a. Reactor: This was a downdraft, t
Page 226 and 227: Transpired Collector Solar-Biomass
Page 230 and 231: Annexure 3 EST for Energy Conversio
Page 232 and 233: Detailed Process Description Figure
Page 234 and 235: Forest Products Research and Develo
Page 236 and 237: Advanced Gasification-Combustion (A
Page 238 and 239: Wood wool cement board (WWCB) Cemen
Page 240 and 241: Furnace-Type Lumber Dryer 105 Phili
Page 242 and 243: (i) Charring Drum. The charring dru
Page 244 and 245: The mould set is filled with the mi
Page 246 and 247: Solar Collector The solar collector
Page 248 and 249: Fluidized Bed Combustor for Steam G
Page 250 and 251: Small-Scale Biomass Pyrolyzer for F
Page 252 and 253: chips) aside from palay and allows
Page 254 and 255: Detailed Process Description There
Page 256 and 257: The IRRI DR-1 Batch Dryer 117 Phili
Page 258 and 259: Rice Hull Furnace attached to a blo
Page 260 and 261: was not continuously discharged fro
Page 262 and 263: Detailed Process Description Drying
Page 264 and 265: Rice Hull Ash Cement (RHAC) Hollow
Page 266 and 267: Annexure 4 EST for Material Convers
Page 268 and 269: Through a joint venture component m
Page 270 and 271: Abaca Mechanical Tuxer 129 Philippi
Page 272 and 273: Economic instruments for overcoming
Page 274 and 275: Figure 2. Fiber Twisting Machine
Page 276 and 277: Example of Real Life Applications C
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Main Products: Cellulosic Ethanol O
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converted to a high-carbon char mat
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NovaGreen Biomass Ethanol Separatio
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Advantages to Developing Countries
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Detailed Process Description 133 On
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286
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agricultural waste could theoretica
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downstream value-added products whe
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Bio-Enriched Method (Trichoderma an
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Increases yield. Improves water-hol
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Environmental Considerations 141 Co
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298
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150 150 http://www.kinseiseishi.co.
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152 Type of non-woven materials Che
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Bale as feedstock USA, Commercial C
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Price of Machine : refer to the tab
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2. Cooking the Fiber: A rope is lai
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9. Weaving: Water is sprayed on the
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Decorticating Machine and Motorised
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usually contains two spindles set i
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tradition and, moreover, the range
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318
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Over 3.5 million coconut farmers ar
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The blades also propel coir fibre t
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Economic instruments for overcoming
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first using the drum method or the
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Job Potential: Farmers' cooperative
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Soundproofing and Insulating Materi
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The environmental impact is signifi
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. Suppliers K.E.F.I. - Kenaf Eco Fi
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Detailed Process Descriptions: 1. H
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In a two-stage setup, the target wi
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companies with expertise in this we
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Mezcal Production from Maguey Phili
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5. Crushing the agave. The roasted
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Method of Propagation Applying fert
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Main Products 198 Abaca fiber comes
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Being a high-priced fabric has prac
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Detailed Process Description 202 Me
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Rice Husk basket Burner India, Comm
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The ash should be white or grey wit
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Paper from Rice Straw Cyprus, Comme
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1. Vatting - Fill your vat halfway
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Ethanol Production by Acid Hydrolys
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improvements would provide cost sav
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Detailed Process Description 7. Ric
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Plywood from Sorghum China, Commerc
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Example of Real Life Applications L
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Figure 1. Schematic of gasifier-pow
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hull is a processing by-product of
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The size of the mill or number of m
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Figure 3. A 12-ft continuous evapor
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The finished syrup is thoroughly st
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Drinking Vinegar from Sweet Sorghum
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only four months. Ethanol, a cheape
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Davis & Standard Twin Screw Extrude
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Environmental and Social Considerat
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Annexure 5 EST for Material Convers
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Detailed Process Description Figure
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operational analysis be carried out
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Figure 2. Hopper or Feeder The comp
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Broin Fractionation (BFRAC) 218 USA
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Collaboration with other companies
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NET INCOME Before Tax = 237, 600 -
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Cornstalk Flash Volatilization USA,
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Decentralized Wastewater Treatment
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degrades the wastes. The algal pond
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Job Potential: 231 Preparing the so
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Annexure 6 EST for Material Convers
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Operations and Maintenance Requirem
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Detailed Process Description There
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Biochar 237 USA, Research Crop Resi
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422
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424
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Detailed Process Description: 241 2
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In addition to functioning as a thi
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The underflow from the first stage
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y essentially dry process technique
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industrial uses. It consists of mol
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yeast for high alcohol, and high-te
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About the UNEP Division of Technolo
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Converting Waste Agricultural Biomass into a Resource - UNEP

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