A word from ODYSSEE
Treated using conventional agents, this 1.3-million-gallon closed network ended up getting clogged.
The rollout of our ODYTHERM FS510P solution, combined with an appropriate treatment and operating methodology, was able to stabilize a network with substantial deviations, eliminating all of its issues.
District heating system with two boilers
Combined heat and power generation
Steel, copper and stainless steel
1.3 million gallons
Planned expansion: + 780,000 gallons
> 150 MW
Softened public water
Approx. 208,000 gallons/year
Treated conventionally, with a base of phosphate/sulfites, the networks ended up heavily clogged:
- Magnetizable suspended matter + deposits
- Significant signs of corrosion (iron): > 60 ppm
- Difficulty maintaining stable parameters in the circuit (mineral conditioning with PO4/SO32, in particular)
- Contaminated with sulfate-reducing bacteria (SRB).
Given the substantial deviations reported and the criticality of the circuit, the strategy in place needed to be reassessed.
An eco-friendly final solution was necessary.
- Permanent stoppage of phosphate-based products
- Gradual application of ODYTHERM FS510P, according to a switchover protocol designed in combination with in-line ODYNET/ODYCLEAR filters
- ODYTHERM FS510P: a formula containing only organic active agents (film-forming amines)
- Installation of a protective continuous monomolecular film mediating between the circuit’s components and the circulating liquid, to prevent corrosion
- Improved heat transfers (clean surfaces)
- Passivation of matter (pH 9-10)
Sharp drops in iron content, ending with values of < 0.05 ppm.
Gradual clarification of water.
Bacterial contamination control
Disappearance of SRB – no recontamination (and no added biocide).