Workshop Floor Drain Treatment

Workshop Drainage Carries Oils and Solvents

Every vehicle service bay, mechanical workshop, and equipment maintenance facility generates wastewater from the floor drains: oil drips from vehicle changeover, hydraulic fluid spillage during repair, degreaser washdown at the end of shift, and antifreeze residue from cooling system service. Without treatment the drain water carries oil and solvent to the municipal sewer at concentrations that fail the regional discharge consent and contaminate the downstream biological treatment plant.

Compact CPI Interceptor Installation

The SorbiTech workshop interceptor is a compact CPI oil water separator installed beneath the workshop floor or in a service trench. The pre cast concrete model is the standard for new build; the bolt down steel skid suits retrofits where the floor is already laid. Either variant uses the same corrugated plate pack technology to deliver outlet oil below 30 mg/L on a continuous basis.

Sizing by Bay Count and Peak Flow

SorbiTech sizes the interceptor against the workshop bay count, the bay size (light vehicle vs heavy vehicle), the peak drainage flow during washdown, and the municipal consent. A typical 6 bay heavy vehicle workshop runs a 12 m³/h interceptor with a 6 month sludge removal cycle. Larger fleet workshops and bus depots run 50 to 100 m³/h units with monthly service.

Service Contract and Sludge Disposal

Daily operator routine is reduced to a visual check on the oil layer. The SorbiTech service contract covers scheduled sludge pump out, oil collection for licensed off site disposal, and documented chain of custody for the operator regulatory reporting. Sector coverage is vehicle services and industrial water treatment.