Agriculture & Biology
biofilters
100%
fluidized beds
87%
ozone
76%
ammonia
61%
fish
41%
ozonation
37%
carbon
28%
biofiltration
22%
nitrifying bacteria
22%
water reuse
20%
gravel
17%
turbidity
15%
nitrites
14%
fluid mechanics
13%
surface area
13%
organic matter
13%
oxidation
10%
bacteria
8%
water
6%
Earth & Environmental Sciences
ammonia
58%
ozone
56%
fish
43%
ozonation
39%
removal
38%
carbon
30%
rate
23%
nitrifying bacterium
23%
biofiltration
23%
water reuse
21%
oxygenation
20%
nitrite
17%
gravel
16%
turbidity
15%
surface area
14%
sedimentation
13%
substrate
12%
organic matter
12%
hydraulics
12%
oxidation
11%
bacterium
11%
particle
9%
water
5%
Medicine & Life Sciences
Ozone
91%
Ammonia
83%
Fishes
67%
Carbon
54%
Bacteria
24%
Water
24%
Nitrites
20%
Growth
9%