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Remove odors, Remove color, Improve permanganate time.
Sodium Hypochlorite solution, Used for sterlizing water and swimming pool...This will - Remove odors. Remove Color. Improve permaganate time.
1
Available Chlorine
14-16%
2
Ph
11-13.
3
Sp.Gravity
1.23 - 1.40
4
Free Alkali (Per Lts )
0.42to0.5%
5
Stability
2 to 3 Month ( GENERAL ATMOSPHRIC TEMP )
OR more stable Below 18°C
6
Viscocity
0.98
7
Alkalinity
1.99
8
Appearance
Pale yellow / green
9
Flash point
None
10
Turbidity
nil
11
CU
NIL
12
Biodegradable
Completely biodegradable
13
Free Acid
None
6% Sodium Hypochlorite Solution. Disinfectant for use in drinking water. Use one drop of solution per 10 ltrs of drinking water, 600 ml of solution per 36 tons of drinking water.
General formulation to calculate how much bleach is needed to add to a tank or a pipeline to disinfect it to a given chlorine residual using a given disinfectant. Usually someone wants to know how to meet an AWWA Standard (like C651-92, Disinfection of Water Mains). The equation below should be used to estimate the amount of sodium / Calcium hypochlorite (Chlorine Water is 6.00% sodium hypochlorite) needed to disinfect a given quantity of water to a desired chlorine concentration.
req'd residual in ppm
Valume of hypo = volume of water x ( ----------------------------- )
1,000,000 x hypo %
For example , say you had installed a new 5,000 gallon tank and wanted to make sure that you had at least a 100 ppm solution of chlorine in it.
How much 6.00% Hypochlorite would you need to add ?
How much 12% Hypochlorite solution would you need ?
If you use calcium hypochlorite (the white, powder version of chlorine, like HTH pool cleaner), the equation becomes:
req'd residual in PPM
Wgt. of Calcium Hypo (lbs)= gal of water x 8.33 lb / gal m x ( ----------------------------- )
1,000,000 x hypo %
Let's assume that we still need to disinfect 5,000 gallons at 100 ppm.
How many pounds of 65% calcium hypochlorite (HTH pool cleaner) are needed?
Spraying - Following rough washing to a good Water White or better, apply dilute Bleach to 1 - 3% strength. First wet the tank surface (spray with DI water), then spray all over with Bleach, wait 30 minute (but do not allow to dry) and then rinse very well with DI water, including the tank top towards the sump. To ensure that you have covered all areas properly, this process should be carried out at least twice with good DI water.
Injection -no.
Re-circulation - Following rough washing to a good Water White standard or better, apply dilute Bleach to 1-3% strength. Mix sufficient Bleach with fresh water in the tank and heat this mixture to 40 - 500C, circulate through the drop line if fitted and than circulate through butterworth machine for 3 hours. After re-circulation immediately warm butterworth to (500 C) the tank for 3 hours at maximum pressure, increase the water temperature to 80-850 C after 45 minutes. Check (by smell) that there is no Bleach remaining, then fresh water rinse and dry.
** When there are a number of tanks requiring re-circulation, it may be significantly more efficient to make up a large batch or number of batches that can be transferred on between tanks as required.
* Use a strainer at the pump stack when circulating any solution.
Tank Lining - Stainless / Zinc / Epoxy / Phenolic (Extreme care must be taken if product other than bleach substitute is to be used in any coated space).
**These products become more aggressive with temperature increase, and should not be allowed to dry on tank walls or stored in cargo tanks as cleaning solution or slops.