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10.16 CHAPTER TEN
pH = 7.3-7.5, NH 3 = 0.6 rag/L, temperature = 15°C
10 min
E i
'c_
o
=o - ~ HOCI + OCI-
/ NH_e, \ \ ~
¢C
2 4 6 8 10 12 14 16
CI2/NH3-N ratio
-- 2h
{J
.J
E
,t-
_9o
=o NHCl
~
¢r
2 4 6 8 10 12 14 16
CI2/NH3-N ratio
24 h
4 l y
g
2 4 6 8 10 12 14 16
CI2/NH 3-N ratio
FIGURE 10.7 Free residual chlorine curves. (Source: A. Palin, "A Study of the
Chloro Derivatives of Ammonia, '" Water Engineering, vol. 54, December 1950,
p. 151.)
