Flashcards
Water definitions
Flashcards do conjunto (9)
- 1Hard waterWater that will not form a lather easily with soap
- 2Temporary HardnessHardness that can be removed by boiling
- 3Permanent HardnessHardness in water that can only be removed by methods other than boiling (such as ion exchange and distillation)
- 4FlocculationThe coming together of small suspended solids in water
- 5Primary TreatmentInvolves screening and settling. It is a physical process
- 6Secondary TreatmentA biological process involving the oxidation by micro-organisms of the nutrients present in the effluent
- 7Tertiary treatmentThe removal of phosphates and nitrates from the effluent
- 8EutrophicationThe presence of excessive nutrient content in a water body to the extent that causes over-abundant plant growth
- 9B.O.DBiochemical Oxygen Demand. The amount of dissolved oxygen in ppm used up by the sample over a period of 5 days at 20 degrees Celsius in the dark
Informações
- Descrição
- Leaving Certificate Chemistry (20. Water) FlashCards sobre Water definitions, criado por Conor Bastible em 04-02-2019.
- Criado por
- Conor Bastible
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