An anodizing facility faced a critical challenge: meeting a pretreatment permit discharge limit of 10mg/L for Total Phosphorus to avoid fines and permit revocation. The influent water contained an average of 700mg/L of Total Phosphorus from the anodizing rinse waters. Traditional methods, such as pH adjustments and chemical dosing changes, failed to reduce phosphorus levels sufficiently.
榴莲官网进入 was called in to resolve the issue. The team used the Molybdovanadate Method with Acid Persulfate Digestion to identify the most influential chemistry. Progressive tests were conducted using wastewater samples from the anodizing process, starting at 700mg/L of Total Phosphorus and maintaining a pH of 7.5. Testing utilized a HACH DR 890 Colorimeter and HACH Test Method 10127 for High-Range Total Phosphorus.
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