By William Lauer, Fred Sanchez
This box advisor offers a convenient, sensible how-to ebook for consuming water team of workers curious about disinfection techniques. The booklet provides water operators universal difficulties and gives ideas on disinfection methods. insurance comprises chapters on chlorination chemical substances, disinfection of recent pipelines, pipe line maintenance and garage amenities and hugely chlorinated water; plus underwater inspections of garage amenities and their disinfection matters; a bankruptcy on pipeline chlorination simplified and indexes on calculations of tank volumes and pipleline non-stop feed process
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Volume of chlorination (Table 3-6) water to disinfect pipeline (this is the volume for disposal; chlorine residual is needed to determine dechlorination chemical amount needed). ❑ Amount of chlorine chemical needed to complete the disinfection procedure. Final Flushing Heavily chlorinated water should be flushed from the main following the required holding period (usually at least 24 hr). All main fittings, valves, and branches must be flushed. fm Page 29 Wednesday, April 18, 2007 4:21 PM Disinfection of Pipelines This table may be one of the most useful.
The solution or gas chlorinator feed rate is determined using the calculators c3-1, -2, -3, -4, -5. fm Page 43 Wednesday, April 18, 2007 4:21 PM Disinfection of Pipelines 43 of measure. These chemical feed rates match the fill rate of the pipeline to result in the 25 mg/L dosage required. Study the examples below to gain a more complete understanding of how to make this calculation. Table 3-9a Liquid chlorine required for 25 mg/L dosage Pipe Diameter in. 84 * The metric equivalents in mm are nominal values, not exact conversions.
152-mm) pipe needs 440 gal for 100 ft (from the table), so for 500 ft, 2,200 gallons are needed. 5 m) of pipe length flush for about 2 min. fm Page 19 Wednesday, April 18, 2007 4:21 PM Disinfection of Pipelines 19 Figure 3-3 Trajectory discharge method of flow estimation and illustration of combination blowoff and sampling tap this method for common size pipelines and other standard conditions. Using this table, a flow can be easily estimated from field measurements. Large diameter pipelines may require excessive water to flush adequately.
Disinfection of Pipelines and Water Storage Facilities by William Lauer, Fred Sanchez