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Pigment wastewater is a difficult problem in industrial wastewater treatment. The water quality of organic pigment wastewater has the characteristics of high ammonia nitrogen content, high acidity, high COD, high chroma, high salt content, and difficulty in biodegradation of organic matter. At the same time, there are problems such as intermittent discharge and large changes in water quality and quantity over time.
In the AG glass etching production process, the use of a variety of strong acids and fluorides makes the chemical composition of the wastewater extremely complex and the ammonia nitrogen content is high. At the same time, due to differences in product batches, different etching processes and changes in raw materials, the quality and amount of wastewater often fluctuate greatly. After the etching process is completed, the glass needs to be cleaned. During this period, a large amount of cleaning water containing glass debris and abrasive particles is discharged into the wastewater pipe, causing the content of suspended matter and organic matter in the wastewater to rise sharply. The above factors have brought extremely severe challenges to the treatment of AG glass etching wastewater to meet the discharge standards.
PTFE ammonia removal membrane technology, with its advantages of low energy consumption and high efficiency, can effectively remove ammonia nitrogen. It is widely used in the treatment of high ammonia nitrogen wastewater in industries such as chemical, electronics, pharmaceuticals, and landfill leachate, providing an economical and practical solution.
Power plant reverse osmosis concentrated water - low temperature membrane distillation 4 times concentrated
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