Sewage Treatment
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✎ Suggest a correctionand secondary Primary treatment of sewage to remove danger of pollution before discharge into stream or body of water. A film short. (CDC-4- 078; 5 minutes)
Complete catalog record
Series: Sanitation Series
Type: Motion Picture
Type: Motion Picture
Sources
- 3434 U.S. Government Films — title, year, creator, format, description, catalog record
Record added 2026-07-13 14:19:23 · Suggest a correction