Pipeline Chlorination Simplified - Disinfection of Pipelines and Storage Facilities Field Guide - page 111

1. Use calculator c8-1, inserting the applicable value from
Table 8-2 to calculate the volume of the pipeline and,
thus, the volume of 25 mg/L chlorine solution needed to
fill the pipeline. Prepare the needed volume (make 25%
extra volume to cover spillage, etc.) using Table 8-1.
2. Calculate the amount of chlorine chemical needed using
calculator c8-2 and inserting the volume from c8-1 above
and the chemical per unit volume shown in Table 8-3.

Table 8-1 Amount of chemical to prepare 25 mg/L chlorine solution for
various volumes

gal (L) of
25 mg/L
solution

Calcium
Hypochlorite
g 65%

Sodium
Hypochlorite
mL 5%

Sodium
Hypochlorite
mL 10%

Sodium
Hypochlorite
mL 12.5%

50 (189) 7.3 95 47 38

100 (379) 14.5 189 95 76

150 (567) 21.9 284 141 114

200 (756) 29.2 378 189 152

Only two steps are needed when using these simplified proce-
dures and targeted calculators and tables. Examine the examples
below to help understand how to use these tools for this process.

Volume of Chlorination Water Needed to Disinfect the
Pipeline

Pipeline volume calculator. To calculate the volume of
25 mg/L chlorine solution needed to fill a pipeline, use this
calculator.

(c8-1)

Volume of 25 mg/L
solution needed to
fill pipeline

Volume per unit length
(from Table 8-2)

Length of pipeline of
selected diameter

= ×