Application of Chemical and Biological Coupled Treatment Technology in POME and Petroleum Waste Water as Biodegradation Alternative

摘要

The current experiment was aimed at investigating the efficiency of Hydrogen peroxide and activated sludge biomass to enhance Biodegradable Dissolved Organic Carbon (BDOC) and Catalase Activity (CA) activation for proficient biological degradation of Palm Oil Mill Effluent (POME) and Crude Petroleum Wastes (CPW). Batch test experiments were carried out, with the applied H₂O₂ doses of 0.5, 1 and 1.5% for contact times of 5, 10 and 15 min in the POME and CPW and subsequently by the Activated Sludge Biomass (ASB) of the same. Results of the combined effect revealed that 1% H₂O₂ dose (1.0 Mm Fe³⁺) for 5 min exposure was found most effective for the reduction of 98.60% COD, 92.61% TOC, 70.13% TN, 85% VSS from POME and similarly, 75% COD, 71% TOC, 54.86% TN, 71% VSS from CPW and BOD₅/COD ratio indicating fatty acid removal was enhanced from 0.50 to 0.79 and 0.51 to 0.65 for POME and CPW, respectively. BDOC enhancement 59 and 35% were realized, with 58 and 29% activation of catalase activity in ASB for POME and CPW respectively. Superoxide radicals were scavenged by SOD activity. Experiment disclosed that BDOC formation and catalase activity activation were significantly related with H₂O₂ dose and exposure time both and coupled technology might enhance treatment efficiency of industrial waste rendering economical feasibility.