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OPERATION OF THE SYSTEM WTC 600 LP / MP
Service Handbook 08.2004
3.2.4 Metering Amounts and Mixing of the Post Chlorination
The chlorine quantity given matches a chlorine content of 0.3mg/l in the drinking water.
The following quantities of RM 852 or calcium hypochlorite are each required for 10 litres of
metering solution:
- RM 852 Sterilization Agent: 32 ml
- Chlorinated Lime: 17 ml (= 18 g)
Example: 75 litres ready mixed metering solution (one metering tank) consists of 7.5 x 32 = 240 ml
RM 852 or 7.5 x 17 = 128ml (=136 g) calcium hypochlorite and chlorine-free drinking water
(cf. Chapter 3.2.3 for extraction).
The quantities must be adjusted accordingly for higher or lower chlorine contents.
Example: Chlorine content: 1.2 mg/l
- RM 852: 4 x 32 ml = 128 ml
- Chlorinated Lime: 4 x 17 = 68 ml
3.2.5 Flocculation Agent
The exact demand in flocculents can only be determined by test. Therefore a test solution is
mixed first, then the raw water is flocked and finally the dosing quantity is evaluated.
3.2.5.1 Mixing of the flocking test solution
Auxiliaries:
- Measuring cup with 500-ml-scale 6.277-001.0 (within service kit)
- Desalinated water (refill water for car batteries)
- Flocculent RM 5001 6.294-716.0 resp. 6.294-703
- Measuring cup 25 ml 6.394-425.0 (within service kit)
- Dropping bottle 50 ml,PE 6.394-426.0 (within service kit)
- Plastic eating spoon.
Work Steps:
1. Give 25 ml flocculent RM 5001 into measuring cup
2. Fill up with desalinated water to 500 ml
3. Stir up thoroughly with plastic eating spoon
4. Give 50 ml of this into a clean dropping bottle, close bottle
5. Cast away the remainder.