Highland Tank’s Oil/Sand Interceptor (OSI) is treatment tank designed to intercept and collect sand, grit, free-oil and grease (hydrocarbons and other petroleum products) in a wastewater flow, and prevent their entry into the sanitary sewer system. Additionally, our elevator sump pump and oil interceptors are designed specifically to remove hydraulic and other oils and volatile liquids from in and around elevator pits.
Oil/sand interceptors contain one to four compartments (basins) where oil separates and floats to the surface, while sand and grit settle to the bottom sludge baffle. Denser, cleaner water flows through the compartment(s) until it is discharged from the interceptor. Designed to accept gravity flow, the interceptor’s volume and design, provide ample retention time to enhance the removal of sand, grit, free oil and grease to be removed from the wastewater due to their differences in specific gravity.
OSI sizing and construction conforms to recognized plumbing codes and meets or exceeds many municipal industrial sewer pretreatment regulations. Interceptors are available in double-wall construction for locations where regulations dictate. Interceptors can be sized for greater volumes and retention time and are watertight and pressure or vacuum-testable in the field if needed.
An extensive range of standard sizes and capacities is available along with customization of capacity, arrangement, dimensions, and pipe penetration locations to fit your specific requirements. Leak and level sensors, alarm/control panels, influent, effluent and oil pump systems along with High-LINK® monitoring systems are available.
single-basin design | click for diagram
Single collection chamber with sludge baffle – simple knock-out design
double-basin design | click for diagram
Two collection chambers and a sludge baffle – commonly used in vehicle washing applications
triple-basin design | click for diagram
Three collection chambers and a sludge baffle – most versatile unit, designed for a variety of applications
The High-LINK® Integrated Systems couples Highland Tank’s superior steel tank products with state-of-the-art electronic management devices and proprietary software to provide real-time data to decision-makers. With our High-LINK® applications you will have the power to optimize the usage and transfer of all your liquid operations. Learn more here.
underground cylindrical interceptors
Highland Single, Double and Triple Basin Interceptors collect sand, grit, grease and free oil (hydrocarbons and other petroleum products) from storm water runoff, spills and vehicle maintenance operations. Interceptors can be used in conjunction with high-performance oil/water separators. Double or triple basin interceptors may be connected directly to a sanitary sewer system or used in conjunction with a recycle wash water system.
Click icons below for drawings, specs and literature
manual oil interceptors
Manual Oil Interceptors (MOI) trap sediment and retain free-floating oil and grease from wastewater discharged into floor drains. MOI prevent the discharge of sediment, oil, grease and other substances harmful or hazardous to the building drainage system, the public sewer or sewage treatment plant or processes. MOI are constructed of mild carbon steel and coated with heavy-duty polyurethane for superior corrosion protection. Available with a convenient, integral side oil compartment, (MOI-SO) they are suitable for installation in almost any location.
Click icons below for drawings, specs and literature
collection catch basins
