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41 Cards in this Set
- Front
- Back
- 3rd side (hint)
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When feed water temperatures increase in a reverse osmosis unit the Will occur? |
Flux |
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When feed water temperatures increase in a reverse osmosis unit the. Will occur? |
Flux |
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When feed water temperatures increase in a reverse osmosis the. Will occur |
Flux |
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What is a rapid method of estimating total dissolved solids content of a water supply? |
Specific conductance |
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What is the most expensive aeration device? |
Mechanical |
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waterfall aeration devices may cause what type of problems? |
Encourage biological growth |
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If a person is poisoned by inhaling fluoride what is the first symptoms? |
Sharp biting pain to the nose followed by a runny nose or a nose bleed. |
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Drinking water is considered what type of waste? |
Industrial. |
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Drinking water is considered what type of waste? |
Industrial. |
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pH kept at what will precipitate calcium carbonate? |
10 |
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Drinking water is considered what type of waste? |
Industrial. |
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pH kept at what will precipitate calcium carbonate? |
10 |
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Excess pink water can be caused by what? |
Potassium permanganate overdose. |
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Drinking water is considered what type of waste? |
Industrial. |
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pH kept at what will precipitate calcium carbonate? |
10 |
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Excess pink water can be caused by what? |
Potassium permanganate overdose. |
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What is the MCL for trihalomethane? |
.08 |
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Drinking water is considered what type of waste? |
Industrial. |
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pH kept at what will precipitate calcium carbonate? |
10 |
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Excess pink water can be caused by what? |
Potassium permanganate overdose. |
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What is the MCL for trihalomethane? |
.08 |
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Shortened filter runs can occurred because of air bound filters, why is this? |
Caused by the release of dissolved air in saturated cold water due to an decrease in pressure. |
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In the ion exchange process, calcium (Ca) and magnesium (Mg) ions are exchanged for what? |
Na ions. (Sodium) |
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In the ion exchange process, calcium (Ca) and magnesium (Mg) ions are exchanged for what? |
Na ions. (Sodium) |
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What are the four stages of the operation of an ion exchange softener? |
Service, brine,backwash,rinse. |
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In the ion exchange process, calcium (Ca) and magnesium (Mg) ions are exchanged for what? |
Na ions. (Sodium) |
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What are the four stages of the operation of an ion exchange softener? |
Service, backwash,brine,rinse. |
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What is the chef cause of accidents? |
Carelessness and negligence. |
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Drinking water should be free of what 2 things? |
Bacteria and toxins. |
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Drinking water should be free of what 2 things? |
Bacteria and toxins. |
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Ton tanks have how many fusible metal safety plugs on each side? |
3-4 |
"On each side" |
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Drinking water should be free of what 2 things? |
Bacteria and toxins. |
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Ton tanks have how many fusible metal safety plugs on each side? |
3-4 |
"On each side" |
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If you have a positive sample for total coliform, do what? |
Repeat samples are required (3) tap upstream and downstream. |
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Drinking water should be free of what 2 things? |
Bacteria and toxins. |
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Ton tanks have how many fusible metal safety plugs on each side? |
3-4 |
"On each side" |
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If you have a positive sample for total coliform, do what? |
Repeat samples are required (3) tap upstream and downstream. |
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Filters are clogged by what that can cause head loss? |
Algae/aquatic micro organisms. |
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What is the meaning of eutrophic? |
High nutrient content. |
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What is a bubbler tube used for? |
Measuring the depth of a well. |
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What is the primary advantage of vacuum system chlorinators? |
Safety |
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