Environmental Engineering Reference
In-Depth Information
“
If H
2
O would decompose by the reaction with CO
2
i
in photosynthesis, then all
H
2
O would convert into O
2
by organisms and plants after the origin of life on
earth to date and no H
2
O would remain in the biosphere.
Instead of H
2
O, photoinduced generation of H
2
O
2
from dissolved O
2
in water
bound in photosynthetic cells is reacted with CO
2
in photosynthesis that can limit
the photosynthesis under light condition.
Then further conversion of H
2
O
2
to O
2
either through photosynthesis [xCO
2
(H2O)
+
yH
2
O
2(H
2
O)
→
C
x
(H
2
O)
y
+
O
2
+
E (
±
)] or both photolytically
(2H
2
O
2
+
hυ
→
O
2
+
unknown oxidant) and biologically (2H
2
O
2
+
catalases/
peroxidases
→
O
2
+
2H
2
O) may balance the environment.”
