Fugitive solvent collection

The proper tool for collection of all fugitive solvent emissions is an air amplifier (air mover powered by compressed air). This device is figuratively shown in use in Figure 4.11, where emissions from all sources around an open-top vapor degreaser are pulled (sucked) into an air... 

Extrinsic wastes are more functional in nature and are not necessarily inherent to a specific process configuration. These may occur as a result of unit upsets, selection of auxiliary equipment, fugitive leaks, process shutdown, sample collection and handling, solvent selection, or waste handling practices. Extrinsic wastes can be, and often are, reduced readily through administrative controls, additional maintenance or improved maintenance procedures, simple recycling, minor... 

Air Point source emission stack, vent (e.g., laboratory hood, distillation unit, reactor, storage tank vent), material loading/unloading operations (including rail cars, tank trucks, and marine vessels). Fugitive emissions pumps, valves, flanges, sample collection, mechanical seals, relief devices, tanks. Secondary emissions waste and wastewater treatment units, cooling tower, process sewer, sump, spill or leak areas. Equipment wash solvent or water, lab samples. 

Material balances can assist in determining concentrations of waste constituents where analytical test data is limited. These are particularly useful where there are points in a production process where it is difficult or uneconomical to collect analytical data. A material balance can help determine if fugitive losses are occurring, for example, the evaporation of solvents from a tank for cleaning parts can be estimated as the difference between solvent put into the tank and solvent removed from the tank. 

---