Welcome to the 1520 Perfect Dictionary
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| Tertiary treatment | |
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| TERTIARY TREATMENT Definition: (environment) Cleaning of waste water that goes beyond the second or biological state, to remove nutrients, e.g., phosphorous, nitrogen, and most suspended solids. ___________________________________ See perfect environmental-friendliness. ____ See perfect cleaning. See perfect removal (2). See perfect somewhat. ____ See perfect treatment (4). See perfect specificity. See perfect level (2). | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |