Question: Where is the appropriate destination for the water-repellent fluid coming from the wet electrostatic precipitator?
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Regarding: A problem with the desulfurization and dust removal devices in thermal power plants. Question: Where is the appropriate destination for the water-repellent fluid coming from the wet electrostatic precipitator? Should we go back to the desulfurization tower? Just discard it directly, okay?
Discharging it directly is definitely not appropriate; I think it should be sent to a wastewater treatment plant
Regardless of the type of wet electrostatic precipitator, hydrophobicity should be applied in the desulfurization absorption system! Desulfurization produces a large amount of hydrophobic impurities, and discharging them into wastewater treatment systems can have an impact on such systems.
Will wet electrochemical wastewater entering the desulfurization system affect the desulfurizing agents and the efficiency of desulfurization in that system?
Because it’s my first time dealing with this, and I also want to understand the issue!
If the desulfurization system has a separate wastewater treatment unit, it is best to feed the wastewater there, that is, at the inlet of the wastewater cyclone
The wash water from calcium-based wet electrostatic processes contains large amounts of sulfuric acid (formed when sulfur trioxide captured by the wet electrostatic process reacts with water), heavy metals, and gypsum droplets. This water can be fed into desulfurization towers or wastewater treatment systems; the specific location for feeding it depends on the analysis of operational data
It depends on whether you are rinsing continuously or intermittently, as well as on how many sets you run. Generally, intermittent flushing below 300MW can be directly fed into the desulfurization system.