Earth & Environmental Sciences
struvite
100%
fertilizer
52%
phosphorus
47%
nutrient
46%
recycling
44%
nitrogen
39%
wastewater
34%
energy use
32%
energy
24%
peptide
20%
wastewater treatment
17%
ammonia
16%
project
15%
watershed
14%
animal waste
13%
phosphate rock
12%
life cycle analysis
12%
kinetics
12%
economics
11%
food supply
11%
fertility
10%
cost
10%
power generation
10%
energy balance
9%
research project
9%
new technology
9%
water
9%
participation
8%
magnesium
8%
innovation
8%
student
8%
life cycle
8%
stakeholder
8%
water resource
7%
crop
7%
runoff
7%
food
6%
animal
6%
contamination
6%
water quality
6%
engineering
6%
liquid
6%
program
5%