| Project Description | A chemical company in Guangzhou primarily produces polyvinyl chloride (PVC) resin. Its existing wastewater treatment system relies mainly on biological degradation for CODcr removal. The original biological process cannot directly handle wastewater containing toxic aromatic compounds and copper or chromium ions (CODcr 2,000–8,000 mg/L). After pre-treatment with ZQQD FCM-IV catalytic self-electrolysis technology, the effluent becomes clear, CODcr stabilizes below 500 mg/L, and biodegradability is significantly improved. Subsequent treatment through the original biological system achieves Guangdong local discharge standards (DB44/26-2001). |
