2. Chlorine Generator
PDAM Kota Cirebon
1. Basic Design
PDAM Cirebon have total water treatment capacity for 860 l/s with Cl2
consumption in the range of 2 - 5 mg/l Cl2.
The Cl2 consumption will be 5 x 860 l/s x 3.6 x 24 / 1000 = 371.5 kg/ day
Right now the Cl2 is supplied in bottles with price around Rp. 6000/ kg. Total Cl2
consumption in the year is 22 856 kg or the Cl2 Cost is Rp. 137.136.000,-. Data
given by PDAM. The Cl2 consumption is only 63.5 kg/day.
PT. Malia will proposed to them the chlorinde generator as an optional.The B4 –
200 unit can do the job.
NOTE : The clarification of Cl2 Consumption and water flowrate is necessary.
2. Equipments
The following design is base on the 860 l/s and 5 ppm consumption.
1) Attached SB should assist with basic OSEC model selection.
2) 15.5 kg/h = 372 kg/d = B4-200
3 ) Outline scope of supply for a complete OSEC system is;-
1 x Duplex Softener set
1 x Salt handling / loading system
1 x Salt saturator (30 days)
1 x Set of duty / standby brine pumps & accessories
1 x B series electrolyser skid
1 x Transformer – rectifier
1 x Set of busbars (TR to electrolyser)
9 Feb 2007 – Sakti Siregar 2
3. Chlorine Generator
PDAM Kota Cirebon
1 x OSEC control panel (standard design)
1 x Product tank with level transmitter
1 x Set of duty / standby blowers with ductwork & airflow switch
1 x Acid cleaning set
1 x Test – titration kit
1 x Twin sensor hydrogen detector
1 x Set of duty / standby dosing pumps & accessories (diaphragm type)
4 ) Supplied by others;-
Water booster pumps (if the available water supply has insufficient
pressure)
Water chillers (if needed)
Interconnecting pipework
Interconnecting electrical cabling
MCC / electrical distribution panels
5 ) Seawater cannot be used if the product is for potable water disinfection due
to excess bromate formation (above WHO levels).
3. Price
Budget list price for B4-200 system to following scope is 210,000 Pnds Stlg, ex-
works UK
4. Operation Cost
Some operating cost have to be considered such as :
1. Electricity cost
2. Salt cost
3. Labor Cost
9 Feb 2007 – Sakti Siregar 3
