Treatment technologies for high-concentration ammonia nitrogen wastewater (coking)

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Characteristics of the QNBR process for treating coking wastewater: Similar to the A/O method commonly used in China, it is also a nitrification/denitrification process. However, it features a short residence time (small tank volume). By utilizing Korea’s unique microbial technology, it enables rapid and cost-effective treatment of coking wastewater; no additional addition of microorganisms is required after their initial introduction. It features good processing performance, stable operation, low investment, and low operating costs. Adjustments can be made based on the water quality conditions in each unit – processes such as oil separation, sludge removal, LBR, three-stage sedimentation tanks, filtration tanks, etc. Typical data: Water treatment capacity of 120 cubic meters per day. Inlet water quality: COD 6000, ammonia nitrogen 550, **10, volatile phenols 900, tar 100. Outlet water quality: COD