Organic Waste Recycling

180 Organic waste recycling: technology and management Table 4.13 Characteristics of anaerobic filter process Advantages Disadva ...

Biofuels production 181 suspension, upflow velocities in the range of 0.6-0.9 m/hr have been used (Metcalf and Eddy Inc. 2003). ...

182 Organic waste recycling: technology and management Reactor data Upflow, V = 760 m 3 , D = 9 m, H = 6 m, M = 12-50 stone Upfl ...

Biofuels production 183 Table 4.15 Characteristics of the UASB process (adapted from Weiland and Rozzi 1991) Advantages Disadvan ...

184 Organic waste recycling: technology and management %CH 4 75 77 NA a 82 Gas production Gasprod.^3 (m /h) 35,300 7,800 NA a 20 ...

Biofuels production 185 Table 4.17 Guidelines for the design of the gas-solids separator device for UASB reactor (Lettinga and H ...

186 Organic waste recycling: technology and management Remedy Outlet part of the plant should be packed in layers of soil of 30 ...

Biofuels production 187 Remedy Painting of the gas holder with black paint or even coal tar each year. Alternate materials like ...

188 Organic waste recycling: technology and management Remedy a) Seed with slurry from a working digester before adding the new ...

Biofuels production 189 Remedy a) Temperature may be raised by, e.g., solar heating, heating with biogas, and composting around ...

190 Organic waste recycling: technology and management Remedy a) Open the valve. b) Clean the tap. c) Remove the condensate. a) ...

Biofuels production 191 Remedy a) Reduce feeding rate. b) Stabilize temperature. c) Remove scum. Have patience. Never put acid i ...

192 Organic waste recycling: technology and management Remedy Inoculation with the right microbial culture. Low initial loading ...

Biofuels production 193 Fermentation time (days) - - - - 10 10 30 10-15 9 10-15 10 CH content in 4 gas (%) - - - - 58 57 60 58 6 ...

194 Organic waste recycling: technology and management Fermentation time (days) 20 29 14 11-20 21 CH content in 4 gas (%) 64 - - ...

Biofuels production 195 Organic matter used for CH 4 production = Organic matter stabilized - Organic matter used for cell produ ...

196 Organic waste recycling: technology and management in which, BODL= 1.42 Px (4.12) Where: Px= net mass of cells produced From ...

Biofuels production 197 Determine the quantity of CH 4 that can be produced from a dispersed-growth digester treating this tapio ...

198 Organic waste recycling: technology and management 0.48 m 1 +0.43 m 2 = 25 0.045 m 1 + 0.009 m 2 m 2 /m 1 = 0.645/0.205 = 3. ...

Biofuels production 199 = 570-423.5 = 146.5 L/day The design and operation of a biogas digester can follow those outlined in the ...