Water for desulfurization and denitration in catalytic cracking
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For EDV Berg, desulfurization and ozone scrubbing are used; grade-1 deionized water is employed for water supply, with the COD level kept at no more than 50, and the wastewater is discharged directly into the sea. I would like to ask my colleagues what kind of water treatment agents they use, what parameters are used to control the discharged water, and whether it is sent to wastewater treatment plants or discharged into the sea. Is fresh water used for desulfurization and emission control processes? Is there any purified water or thermal wastewater available? What is the situation regarding equipment corrosion?
Too high a salt content in wastewater poses a significant strain on conventional wastewater treatment. Using reclaimed water is the most economical option
The wastewater from the drum could be considered for use
The key is to be able to discharge wastewater into the sea; in that case, the salt content isn’t a major issue... It seems that water with a COD level that doesn’t exceed the limits can be used
Fresh water; wastewater is discharged directly into the open ditch via PTU
This post was last edited by humin on 2017-6-3 06:55. High-concentration saline wastewater from flue gas desulfurization can only be discharged into the sea in coastal areas; it is not possible to do so in inland areas. There are requirements regarding wastewater discharge in terms of particulates and COD; however, it is generally not discharged directly, but rather after being treated in rainwater control tanks. Flue gas desulfurization has certain requirements regarding the water used for feeding and make-up water; the BELCO process package specifies these requirements, including limits on chloride ions as well as calcium and magnesium ions, and generally, fresh water is sufficient. Fresh water for drinking and for replenishing water. Emergency water replenishment is carried out using fire-fighting water, as it is the only option available; many places do not approve of this approach, so pressurized fresh water has to be used for emergency replenishment.