HONGWei,LIANGShi-hua,ZHANGZeng-guo,et al.Process Design and Operation Effect of Oil-based Needle Coke Wastewater Treatment Project[J].China Water & Wastewater,2023,39(16):94-98.
Process Design and Operation Effect of Oil-based Needle Coke Wastewater Treatment Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第16期
Page:
94-98
Column:
Date of publication:
2023-08-17
- Keywords:
- oil-based needle coke wastewater; oil separation; air flotation; biochemical treatment; Fenton oxidation
- Abstract:
- Aiming at the characteristics of high oil and sulfur content, high quality fluctuation and poor biodegradability of oil-based needle coke wastewater, a combined process of oil separation, regulation, desulfurization, air flotation, A/O biochemical treatment, and modified Fenton oxidation is used to design a wastewater treatment project with 1 920 m3/d. The process flow, main process design parameters and the removal effect of main pollutants are introduced. The operation results show that the combined process has high efficiency, strong impact resistance and good operation stability. When the average influent concentrations of COD, NH3-N, TN, TP are 4 360 mg/L, 75 mg/L, 186 mg/L and 12 mg/L, the average effluent concentrations of those are 65 mg/L, 2.5 mg/L, 12 mg/L and 0.5 mg/L, respectively, which stably meet the level Ⅲ criteria of Integrated Wastewater Discharge Standard (GB 8978-1996) and the comprehensive sewage plant agreement standard requirements in the industrial park.
Last Update:
2023-08-17