Heavy Oil Storage Water Treatment

Product Detail

Process Flow






Process Introduction

The wastewater from the heavy oil tank in the oil depot has a high content of oil and suspended solids, with severe emulsification and darkened water quality. It needs to be treated to meet the control target of effluent oil content less than 10 mg/L. The process is centered around the CDFU equipment, combined with an activated filter, to ensure stable effluent that meets the treatment standards.




The wastewater from the heavy oil tank first enters the two-stage CDFU for oil and suspended solids removal. The discharged oily water goes into the oily water collection tank, while the effluent enters the activated filter for filtration. The filtered effluent meets the treatment standards, and the filter undergoes regular backwashing, with the backwash water directed to the sludge tank.




Process Characteristics

     •The process is short, efficient, and highly resistant to impact, ensuring stable effluent quality；

     • No chemicals, pure physical demulsification and separation technology with stable and effective demulsification, without generating oily sludge (hazardous waste);

     • Utilizes a two-stage cyclone dissolved air flotation for pretreatment, offering strong impact resistance and ensuring stable and reliable operation of subsequent processes;

     • Activated filter with high filtration precision, excellent performance, strong impact resistance, and long filter media lifespan;

     • Compact design with a small footprint, suitable for applications with high space requirements;

     • Fully automated and informatized operation, remote monitoring capability, requiring minimal manual intervention, resulting in convenient and cost-effective maintenance.




Technical Comparison