View source for Gas Yields and Methane Contents for Various Substrates

{| width="100%" cellspacing="2" cellpadding="8" border="1"
|-
! width="40%" | Substrate 
! width="35%" | Gas yield<br> (l/kg VS<sup>*</sup>) 
! width="25%" | Methane content<br> (%)
|-
| Pig manure 
| 340-550 
| 65-70
|-
| Cow manure 
| 90-310 
| 65
|-
| Poultry droppings 
| 310-620 
| 60
|-
| Horse manure 
| 200-300 
| <br>
|-
| Sheep manure 
| 90-310 
| <br>
|-
| Barnyard dung 
| 175-280 
| <br>
|-
| Wheat straw 
| 200-300 
| 50-60
|-
| Rye straw 
| 200-300 
| 59
|-
| Barley straw 
| 250-300 
| 59
|-
| Oats straw 
| 290-310 
| 59
|-
| Corn straw 
| 380-460 
| 59
|-
| Rape straw 
| 200 
| <br>
|-
| Rice straw 
| 170-280 
| <br>
|-
| Rice seed coat 
| 105 
| <br>
|-
| Flax 
| 360 
| 59
|-
| Hemp 
| 360 
| 59
|-
| Grass 
| 280-550 
| 70
|-
| Elephant grass 
| 430-560 
| 60
|-
| Cane trash (bagasse) 
| 165 
| <br>
|-
| Broom 
| 405 
| <br>
|-
| Reed 
| 170 
| <br>
|-
| Clover 
| 430-490 
| <br>
|-
| Vegetables residue 
| 330-360 
| <br>
|-
| Potato tops/greens 
| 280-490 
| <br>
|-
| Field/sugar beet greens 
| 400-500 
| <br>
|-
| Sunflower leaves 
| 300 
| 59
|-
| Agricultural waste 
| 310-430 
| 60-70
|-
| Seeds 
| 620 
| <br>
|-
| Peanut shells 
| 365 
| <br>
|-
| Fallen leaves 
| 210-290 
| 58
|-
| Water hyacinth 
| 375 
| <br>
|-
| Algae 
| 420-500 
| 63
|-
| Sewage sludge 
| 310-740 
| <br>
|}

'''Table B1: Gas yields and methane contents for various substrates at the end of a 10-20 day retention time at a process temperature of roughly 30�C.''' 

<small>Source: Production and Utilization of Biogas in Rural Areas of Industrialized and Developing Countries, Schriftenreihe der gtz, No. 97, pg. 63, after: Felix Maramba, Biogas and Waste Recycling - The Phillipine Experience; Metro Manila, Phillipines, 1978</small> 

<sup>*</sup> VS = Total volatile solids, e.g. ca. 9% of total liquid manure mass for cows

[[Category: Biogas]]