Earth & Environmental Sciences
fluidised bed
89%
poultry
79%
energy recovery
79%
litter
63%
pyrolysis
60%
biochar
48%
reactor
47%
nutrient
44%
oil
39%
soil amendment
27%
animal waste
14%
livestock farming
13%
organic soil
11%
power generation
11%
gas
11%
waste disposal
10%
product
10%
fertilizer
9%
farm
9%
potassium
9%
ash
9%
economy
8%
environmental impact
8%
temperature
8%
sustainability
8%
protein
8%
heating
8%
animal
7%
demand
7%
acid
7%
nitrogen
6%
economics
6%
carbon
6%
laboratory
6%
Engineering & Materials Science
Poultry
100%
Nutrients
85%
Pyrolysis
63%
Recovery
45%
Oils
43%
Animals
21%
Soils
17%
Fertilizers
14%
Potassium
13%
Waste disposal
13%
Gases
12%
Heat generation
12%
Ashes
11%
Farms
11%
Environmental impact
10%
Nitrogen
10%
Wood
10%
Proteins
10%
Acids
10%
Sustainable development
10%
Power generation
9%
Temperature
9%
Carbon
8%
Heating
8%
Economics
7%
Hot Temperature
5%
Social Sciences
energy
46%
Animal wastes
42%
animal protein
41%
amendment
39%
waste disposal
29%
Power generation
28%
heat pump
27%
heat
25%
environmental impact
21%
farm
21%
agriculture
18%
sustainability
16%
demand
15%
economics
9%