Proposed treatment for segregated oily wastewater from tanks, pipelines, drainage areas and domestic flows, subject to client data.
Project Background
The client-supplied design basis is ~250 m³/d for mixed oily process water, wash water, contaminated drainage, bilge-type water, stormwater and domestic sewage. Target parameters include mineral oil, detergents, pH, BOD₅, TOC, turbidity, total phosphorus and total nitrogen. Flow variation, source composition, applicable discharge requirements and the reviewed process drawings remain to be confirmed.
Our Solution
The proposed solution combines source segregation, coarse screening, oil interception, equalisation, controlled pH adjustment, coagulation, dissolved air flotation, anoxic and aerobic biological treatment, membrane bioreactor filtration, conditional polishing and disinfection. This arrangement addresses free oil, emulsified oil, detergents, biodegradable organics, nutrients and suspended solids. Floating oil and separated sludge require bunded collection and licensed disposal, while membrane cleaning waste and any tertiary-treatment concentrate require controlled handling. Final unit selection, tankage, chemical dosing, aeration, membrane configuration, polishing steps and disinfection will be adjusted after source sampling, flow review and assessment of the supplied drawings and applicable requirements.
What We Asked First
Please confirm the design flow basis, operating hours, peak and batch discharges, source segregation, sampling results, discharge destination and applicable standard, together with plot area, power supply, hazardous-area classification and treatment scope.
Proposed Process Train
- 1Source segregation and flow equalisation
- 2coarse screening and oil interception
- 3equalisation and pH adjustment
- 4coagulation and dissolved air flotation
- 5anoxic and aerobic biological treatment
- 6membrane bioreactor filtration
- 7tertiary polishing and disinfection
- 8sludge dewatering and controlled disposal
For Similar Projects
Prepare source-by-source flow and sample data, oily wastewater characteristics, drainage plans, utility information, hazardous-area details and the required discharge basis before detailed sizing and performance validation.
Ref. A-027. Client identity is withheld under our client-confidentiality policy. Capacity is shown as a capacity class (design value rounded up to the next 5 at its second significant digit).
