Earth & Environmental Sciences
oil sand
78%
process water
78%
bioreactor
63%
water treatment
61%
bitumen
24%
biodegradation
13%
water extraction
9%
biomass
9%
matrix
9%
biotic factor
9%
pollutant
8%
community dynamics
8%
abiotic factor
8%
hot water
8%
PAH
6%
pond
6%
microbial community
6%
membrane
5%
degradation
4%
acid
4%
sand
4%
oil
4%
world
4%
removal
3%
cost
3%
water
2%
method
1%
Engineering & Materials Science
Oil sands
88%
Water treatment
85%
Bioreactors
82%
Water
32%
Tailings
29%
Biodegradation
21%
Biofilms
20%
Impurities
14%
Open pit mining
10%
Membrane technology
10%
Polycyclic aromatic hydrocarbons
10%
Ponds
10%
Clay
7%
Acids
6%
Degradation
5%
Oils
4%
Costs
2%
Chemical Compounds
Oil Sand
100%
Bioreactors
76%
Bitumen
29%
Microbial Biomass
12%
Mining
8%
Biodegradation
7%
Arene
6%
Toxic
5%
Acid
2%
Surface
2%