Catch basin

Special wastes. Wastes such as street sweepings, roadside litter, catch-basin debris, dead animals, and abandoned vehicles are classified as special wastes. 

Skimming and vacuuming floating PCP/oil from the catch basin and p>ond ... 

In cases where bellows failure would release flammable, toxic or corrosive liquids through the vent, a short nipple and elbow should be used to direct leakage to an open funnel which is piped to grade and ties into a catch basin or manhole with a sealed inlet connection. 

Senkel, m. plummet (shoe) lace, senken, v.t. sink, submerge lower, depress. — V.T. sink, subside, settle sag, slope. Senk-grube,/. cesspool sump catch basin, -korper, m. sinker, bob. -klipe, /. (Textiles) dipping frame, -loch, n. sink hole catch basin drain, -lot, n. plumb bob, plummet, senkrecht, a. perpendicular, vertical, normal. Senkrechte,/. perpendicular, normal. Senkspindel, /. specific avity spindle, hydrometer. 

Hoods for toxic work should be easily decontaminatable with a catch basin leading to a toxic sump. The hoods should be made of stainless steel and be conveniently locked. Provision should be made for limiting travel of the hood door to that opening which can be supported by the hood fans and the air handling system. These stops should be sturdy but adjustable. 

An adequate drainage system should be provided for all locations where a large amount of hydrocarbon liquids has the possibility of release and may accumulate within the terms of the risk analysis frequency levels. Normal practice is to ensure adequate drainage capability exists at all pumps, tanks, vessels, columns, etc., supplemented by area surface runoff or general area catch basins. Sewer systems are normally gravity flow for either sanitary requirements or oily surface water disposal. Where insufficient elevation is available for the main header, lift stations are installed with a forced pressure outlet header to a disposal or treatment system. 

Common practice and a general guide is to prevent combustible vapors from transmitting from one process area to another process area, generally 15.2 meters (50 ft.) or more away. Usually unsealed receptacles, such as drain funnels, tundishes, drain boxes, are routed to the nearest local sealed catch basin and then into the oily water sewer main. The unsealed receptacles are only allowed in the same process area equipment where if vapors where released from an adjacent unsealed receptacle it would be "immaterial" due to the proximity to where the liquid is being drained and would normally emit vapors. 

Exposure to Flooding. Vaults should not be located at points of minimum elevation, near catch basins, or where the access cover will be in the course of surface waters. 

A drainage system includes a containment system using solid, impermeable floors with perimeter features (curbing, floor slope, or trenches) to limit and control the spread of liquids and a collection system (floor drains or trenches, catch basins, sumps, piping, and manholes) to direct the liquids into a gravity drain system that routes them to an appropriate location out of the unit. 

Curbs, Trenches, Drains, Catch Basins, and Oil Separators... 

Process, chemical, or oily water sewer system branch and lateral lines should enter main lines through vapor-sealed and vented manholes. Branches and laterals in clean or storm water drainage systems may enter main lines without vapor seals if liquid-sealed catch basins are used on the inlets to these branches and laterals. 

Catch basins should be provided for each fire zone of the process area to collect the flow from the floor drains and trenches. All catch basins within the process area battery limits should be sealed for vapor control. Catch basin seals should be of types that are easily cleaned out. P-traps should not be used. Catch basins require a periodic check to verify that a liquid seal is in place and clean-out plugs are installed. 

Practice indicates that the vapors emanating from these vents are rarely within the flammable region, as the nominal atmospheric pressure of the drainage system is not adequate to allow vapor or gas to pass through the 3-4 in (7.5-10 cm) deep catch basin water seals. 

Tanks may be equipped with a "water draw" that empties into a catch basin within the dike and adjacentto the tank. To limit exposure of tank valves to this potential fire hazard, the "water draw" catch basin should not be placed directly below or adjacent to tank valves or nozzles. 

Installing two catch basins of capacities 5,000 and 2,500 m for fire water retention. 

May 1978 Sump, catch basin under zinc electrolyte cooling tower. 

A wide range of applications for sulfur concrete such as SUDICRETE provide many advantages. Included are industrial flooring, electrolytic vats, sumps, catch basins, tanks, sewage and waste impoundment ponds, bridge decks, pipes, etc., all of which can benefit from its extreme corrosion resistance. Rapid... 

Corrosion resistant masonry is generally more commonly used in floors, trenches, and pits or catch basins. Other applications are chimneys, basically fire brick, and the lining of process vessels. Both are highly specialized and are covered in other chapters in detail. 

Position catch basins in case a vessel breaks. 

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