Oily Wastewater

Treatment Process Features

Gravity separation of floating oil – Utilizes the density difference between oil and water to automatically collect floating oil in a centralized oil storage compartment for periodic recovery.

Demulsification for emulsified oil removal – Chemical coagulation + microbubble air flotation breaks down emulsified oils, causing them to agglomerate and rise to the surface for effective removal of difficult-to-separate emulsified oils.

Suspended solids and residue removal – Filtration and sedimentation remove sediment, food residues, and metallic particles, effectively reducing SS and COD levels.

Pretreatment for downstream biological processes – Effluent after oil removal can be fed into underground or above-ground biological treatment units, preventing oil from suffocating the microbial culture.

Automatic sludge and oil discharge – Fully automatic oil skimming and scraper systems eliminate the need for manual oil collection.

Product Structure and Functional Features

Integrated Design – Combines screening, oil separation, coagulation, flotation, sedimentation, oil storage, and effluent discharge into a single compact unit with a small footprint.

Sealed odor control – Fully enclosed tank design prevents odor escape, ensuring a clean and pleasant environment.

Automated control – PLC-based system with automatic start/stop, intermittent aeration, and level control, enabling unattended operation.

Oil-resistant anti-corrosion construction – Available in anti-corrosion coated carbon steel or 304 stainless steel, offering excellent resistance to grease and oil corrosion, with a long service life.