Difference between revisions of "Gas Yields and Methane Contents for Various Substrates"

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{| width="100%" cellspacing="2" cellpadding="8" border="1"
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= Overview =
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*VS = Total volatile solids, e.g. ca. 9% of total liquid manure mass for cows
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= Substrate / Gas Yield / Methane Content =
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Table: '''Gas yields and methane contents for various substrates at the end of a 10-20 day retention time at a process temperature of roughly 30C.'''
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{| border="1" cellspacing="2" cellpadding="8" style="width: 100%;  width: 100%"
 
|-
 
|-
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! width="40%" | Substrate  
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! style="width: 40%;  background-color: rgb(204, 204, 204);  text-align: left" | Substrate<br/>
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! width="35%" | Gas yield<br> (l/kg VS<sup>*</sup>)  
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! style="width: 40%;  background-color: rgb(204, 204, 204);  text-align: left" | Gas yield<br/>(l/kg VS<sup>*</sup>)
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! width="25%" | Methane content<br> (%)
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! style="width: 40%;  background-color: rgb(204, 204, 204);  text-align: left" | Methane content<br/>(%)
 
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|-
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| Pig manure  
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| Pig manure<br/>
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| 340-550  
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| 340-550
 
| 65-70
 
| 65-70
 
|-
 
|-
−
| Cow manure  
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| Cow manure
−
| 90-310  
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| 90-310
 
| 65
 
| 65
 
|-
 
|-
−
| Poultry droppings  
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| Poultry droppings
−
| 310-620  
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| 310-620
 
| 60
 
| 60
 
|-
 
|-
−
| Horse manure  
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| Horse manure
−
| 200-300  
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| 200-300
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Sheep manure  
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| Sheep manure
−
| 90-310  
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| 90-310
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Barnyard dung  
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| Barnyard dung
−
| 175-280  
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| 175-280
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Wheat straw  
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| Wheat straw
−
| 200-300  
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| 200-300
 
| 50-60
 
| 50-60
 
|-
 
|-
−
| Rye straw  
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| Rye straw
−
| 200-300  
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| 200-300
 
| 59
 
| 59
 
|-
 
|-
−
| Barley straw  
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| Barley straw
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| 250-300  
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| 250-300
 
| 59
 
| 59
 
|-
 
|-
−
| Oats straw  
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| Oats straw
−
| 290-310  
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| 290-310
 
| 59
 
| 59
 
|-
 
|-
−
| Corn straw  
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| Corn straw
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| 380-460  
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| 380-460
 
| 59
 
| 59
 
|-
 
|-
−
| Rape straw  
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| Rape straw
−
| 200  
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| 200
−
| <br>
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| <br/>
 
|-
 
|-
−
| Rice straw  
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| Rice straw
−
| 170-280  
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| 170-280
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Rice seed coat  
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| Rice seed coat
−
| 105  
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| 105
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Flax  
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| Flax
−
| 360  
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| 360
 
| 59
 
| 59
 
|-
 
|-
−
| Hemp  
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| Hemp
−
| 360  
+
| 360
 
| 59
 
| 59
 
|-
 
|-
−
| Grass  
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| Grass
−
| 280-550  
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| 280-550
 
| 70
 
| 70
 
|-
 
|-
−
| Elephant grass  
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| Elephant grass
−
| 430-560  
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| 430-560
 
| 60
 
| 60
 
|-
 
|-
−
| Cane trash (bagasse)  
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| Cane trash (bagasse)
−
| 165  
+
| 165
−
| <br>
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| <br/>
 
|-
 
|-
−
| Broom  
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| Broom
−
| 405  
+
| 405
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Reed  
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| Reed
−
| 170  
+
| 170
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Clover  
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| Clover
−
| 430-490  
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| 430-490
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Vegetables residue  
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| Vegetables residue
−
| 330-360  
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| 330-360
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Potato tops/greens  
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| Potato tops/greens
−
| 280-490  
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| 280-490
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Field/sugar beet greens  
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| Field/sugar beet greens
−
| 400-500  
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| 400-500
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Sunflower leaves  
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| Sunflower leaves
−
| 300  
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| 300
 
| 59
 
| 59
 
|-
 
|-
−
| Agricultural waste  
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| Agricultural waste
−
| 310-430  
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| 310-430
 
| 60-70
 
| 60-70
 
|-
 
|-
−
| Seeds  
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| Seeds
−
| 620  
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| 620
−
| <br>
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| <br/>
 
|-
 
|-
−
| Peanut shells  
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| Peanut shells
−
| 365  
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| 365
−
| <br>
+
| <br/>
 
|-
 
|-
−
| Fallen leaves  
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| Fallen leaves
−
| 210-290  
+
| 210-290
 
| 58
 
| 58
 
|-
 
|-
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| Water hyacinth  
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| Water hyacinth
−
| 375  
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| 375
−
| <br>
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| <br/>
 
|-
 
|-
−
| Algae  
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| Algae
−
| 420-500  
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| 420-500
 
| 63
 
| 63
 
|-
 
|-
−
| Sewage sludge  
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| Sewage sludge
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| 310-740  
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| 310-740
−
| <br>
+
| <br/>
 
|}
 
|}
  
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'''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 30C.'''
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<br/>
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= Further Information =
 +
 
 +
*[[Portal:Biogas|Biogas Portal on energypedia]]
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 +
 
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= References<br/> =
  
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<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>
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*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
  
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<sup>*</sup> VS = Total volatile solids, e.g. ca. 9% of total liquid manure mass for cows
+
<references />
  
 
[[Category:Biogas]]
 
[[Category:Biogas]]

Latest revision as of 08:55, 18 June 2014

Overview

  • VS = Total volatile solids, e.g. ca. 9% of total liquid manure mass for cows


Substrate / Gas Yield / Methane Content

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

Substrate
 Gas yield
(l/kg VS*) 		Methane content
(%)
Pig manure
 340-550 65-70
Cow manure 90-310 65
Poultry droppings 310-620 60
Horse manure 200-300
Sheep manure 90-310
Barnyard dung 175-280
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
Rice straw 170-280
Rice seed coat 105
Flax 360 59
Hemp 360 59
Grass 280-550 70
Elephant grass 430-560 60
Cane trash (bagasse) 165
Broom 405
Reed 170
Clover 430-490
Vegetables residue 330-360
Potato tops/greens 280-490
Field/sugar beet greens 400-500
Sunflower leaves 300 59
Agricultural waste 310-430 60-70
Seeds 620
Peanut shells 365
Fallen leaves 210-290 58
Water hyacinth 375
Algae 420-500 63
Sewage sludge 310-740


Further Information


References

  • 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


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