Earth & Environmental Sciences
circular economy
76%
digestion
39%
commodity
31%
biogas
29%
chlorine
27%
mill
26%
biomass
25%
potassium
25%
monitoring
22%
indicator
21%
effluent
21%
nutrient
19%
greenhouse gas emissions
17%
oil
17%
product
17%
cost
16%
sustainability
15%
fouling
14%
bulk density
14%
ethanol
14%
fermentation
13%
land use change
13%
resource use
13%
ash
12%
economy
11%
test
11%
combustion
11%
melting
11%
transition
11%
crop
10%
resource
10%
savings
9%
evaluation
9%
biological resource
8%
nutrient cycle
7%
landfill gas
7%
recycled material
7%
hazardous substance
7%
policy
7%
renewable resource
6%
energy policy
6%
food industry
6%
membrane
6%
European Commission
6%
organic waste
6%
pollution
6%
environmental economics
6%
economic viability
6%
cost reduction
6%
literature review
6%
Engineering & Materials Science
Bioeconomy
100%
Biomass
95%
Nutrients
40%
Potassium
36%
Chlorine
36%
Palm oil
36%
Effluents
34%
Sustainable development
28%
Pelletizing
22%
Gas emissions
20%
Greenhouse gases
20%
Land use
18%
Wood
18%
Fouling
17%
Monitoring
16%
Fermentation
16%
Crops
16%
Economics
16%
Ashes
15%
Ethanol
15%
Membrane technology
14%
Melting
14%
Costs
13%
Heat exchangers
13%
Steam
12%
Minerals
10%
Lignocellulosic biomass
9%
Pollution
9%
Water pollution
7%
Water quality
6%
Feedstocks
6%
Cost reduction
5%
Agriculture & Biology
oil mill effluents
44%
products and commodities
31%
organic matter
27%
pellets
27%
organic compounds
21%
salts
20%
nutrients
18%
greenhouse gas emissions
13%
chlorine
12%
pollution
10%
palm oil mills
9%
concentrates
9%
potassium
9%
digestion
9%
minerals
9%
methodology
8%
pelleting
7%
fertilizers
7%
economic evaluation
7%
heat exchangers
7%
biomass
7%
land use change
7%
water pollution
7%
economic sustainability
7%
fouling
6%
cost effectiveness
6%
combustion
6%
melting
6%
water quality
5%
hydrolysates
5%
bulk density
5%
environmental impact
5%
steam
5%
methane
5%