|Description:||River water filtration to Cooling water makeup|
|Goal:||Turbidity, suspended solids and organic matter reduction|
|Capacity:||180 m3/hour 3 towers|
|Water Source:||Surface water|
- Shortage of good make up water source availability.
- River water contained organic colloidal matter
- Cooling towers were treated with highconcentration of biocides to minimize biologicalfouling
- Cooling towers were treated with high concentrationof chlorine to minimize bacteria count.
|Items||Existing Values||Required Value|
|Ammonia -N, (PPM)||<3||-|
|Bacteria Count (CFU/ml)||>10,000||<1,000|
|Suspended Solids (PPM)||<15||<2|
- River water was filtered with AFM® type 1 and type 0, and then transferred as make up water to all 3 cooling towers.
- Consequently, biocide and chlorine dosing level was significantly reduced in all cooling towers.
- Colloidal and suspended matter levels were reduced by more than an order of magnitude, to significantly below allowed values.
|Items||Required Value||Before treatment||After treatment|
|Bacteria Count (CFU/ml)||<1,000||>10,000||<100|
|Suspended Solids (PPM)||<2||<15||<0.2|
Dryden Aqua’s Deliverables: