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Summary
| Description |
English: Pumps used to add required amount of chemicals to the clear water at the water purification plant before the distribution. From left to right: sodium hypochlorite for disinfection, zinc orthophosphate as a corrosion inhibitor, sodium hydroxide for pH adjustment, and fluoride for tooth decay prevention. |
| Date | |
| Source | Own work |
| Author | Z22 |
References:
Licensing
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:20, 6 July 2014 |
| 2,987 × 4,004 (5.98 MB) | Z22 | User created page with UploadWizard |
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