Application of ozone treatment technology in nitrogen fertilizer enterprises
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Ozone is widely used in wastewater treatment, commonly in the treatment of wastewater containing phenols, cyanides, and dyes. Its use in the nitrogen fertilizer industry has not yet been seen; it is unknown whether this is feasible Please offer some advice! Additionally, we are seeking capable water treatment companies to collaborate on ozone water treatment projects; those interested please get in touch with me. Thank you! ! ! This post was last edited by ft2489244 on 2007-12-11 15:59]
The main purpose of using ozone in wastewater treatment is to treat wastewater containing phenols, cyanides, and dyes, thereby reducing the COD value so that the treated water can be discharged safely. In the nitrogen fertilizer industry, the amount of wastewater is low, and the discharge volume is small; it mainly consists of ammonia-containing water, which is why its use is limited. It is feasible, but it is generally not adopted in practice.
Those familiar with the applications in the printing and dyeing industry know that improving the biodegradability of wastewater can also help with decolorization. Fertilizer manufacturers generate a significant amount of wastewater; for example, our plant’s gas production facility alone produces 1,000 m3/h of wastewater (from coal-based gas production). This wastewater is recycled after being treated through sedimentation, so no discharge occurs. This approach is taken in response to the calls for energy conservation and emission reduction, as well as as a necessity for the survival of these businesses. However, it also brings about a series of problems! High ammonia levels, high COD levels, and high cyanide concentrations cause severe corrosion to equipment, and the urgency of this problem is becoming increasingly apparent. Therefore, I am considering the use of ozone in combination with biological treatment methods; I wonder what issues need to be taken into account. I would appreciate guidance from those with experience in this area!