| 1. | OWPCP is a secondary treatment plant handling one-third of the city's wastewater.
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| 2. | The United States includes BOD effluent limitations in its secondary treatment regulations.
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| 3. | Pyrethroids are unaffected by conventional secondary treatment systems at municipal wastewater treatment facilities.
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| 4. | A rotating biological contactor is a type of secondary treatment process.
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| 5. | The exception would be in secondary treatment ( or side processing ) phases.
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| 6. | By the 1980s another massive investment upgraded all three plants to secondary treatment.
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| 7. | The French System combines primary and secondary treatment of raw wastewater.
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| 8. | The costs of preliminary treatment are about one tenth that of secondary treatment.
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| 9. | The secondary treatment level plant was completed in November 2014.
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| 10. | In 2004, this percentage was 63 % ( including primary and secondary treatment ).
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मोबाइल