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Sample Painting Process Flow Chart
In this example,
a hypothetical manufacturing operation has flow charted
its painting operation. The example was kept relatively
simple, concentrating only on paint-related wastes and
releases. Only enough sections have been completed to
illustrate the procedure and end points. Many sections
have been left incomplete.
Plant Painting
Material Consumption and Wastes
The following are examples of information that might
be easily measured on a plant-wide basis.
| Paint purchase |
2,430 |
gpy (30% solids) |
| Thinner purchase |
570 |
gpy |
| Wash solvent purchase |
490 |
gpy |
| Paint hazardous waste |
560 |
gpy |
| Paint filter |
100 |
lb/yr |
| Painted parts scrapped |
3 |
% |
| Painted parts reworked |
9 |
% |
| Transfer efficiency |
45 |
% |
Process Flow
A process flow diagram might look as follows with waste
streams identified. Measuring the liquid and solid waste
collected would be relatively easy at this level of
detail. But, estimating evaporation for paint preparation
and cleanup would be difficult.
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