2023-03-27
The main excessive pollutant indicators in the wastewater of chemical fertilizer plants are ammonia nitrogen, sulfide, and total chlorination compounds. The water quality is characterized by high ammonia nitrogen content and toxic total chlorination compounds and sulfides; Mainly due to lower COD and higher ammonia nitrogen content). In the control technology of fertilizer plant wastewater, the commonly used methods are air stripping method, biological method, breakpoint chlorination method, adsorption method and ion exchange method. Each method has its pros and cons. The project designer needs to select the appropriate process to design and treat the wastewater from the fertilizer plant according to the actual situation. The sewage is first biochemically treated and then filtered through the ultrafiltration system, and then treated through the RO system to further reduce COD and ammonia nitrogen, so as to achieve the expected goals of the enterprise.
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