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ELIMINATION DBO [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1995-08-10

English

Subject field(s)
  • Civil Engineering
  • Anti-pollution Measures
  • Water Treatment (Water Supply)
CONT

BOD removals are affected by: 1. Quantity and quality of waste. A definite ratio exists between the quantity of a waste applied to a trickling filter and the BOD removal efficiency.

CONT

While the biological factor (such as temperature and waste water quality) are delineated by first-order BOD (biochemical oxygen demand) removal coefficient (K), the physical hydraulic regimes (such as mixing pattern and depth-width ratio of lagoon) are represented by dispersion index.

CONT

The subsurface horizontal flow treatment units (HSS) allow, when organic loading (BOD) is relatively low, efficient suspended solids and BOD removals using a complex of aerobic and anaerobic bacterial activities.

Key term(s)
  • first-order BOD removal

French

Domaine(s)
  • Génie civil
  • Mesures antipollution
  • Traitement des eaux
CONT

L'oxydation de la matière organique dans une lagune aérobie est analogue à l'épuration naturelle dans les cours d’eau. Si l'oxygène est maintenu en suffisance, l'élimination de la DBO peut être exprimée par une réaction du premier ordre [...]

CONT

Les abréviations anglaise «BOD» et française «DBO» sont employées généralement de préférence aux expressions complètes correspondantes; c'est sans doute pourquoi l'expression "élimination de la demande biochimique en oxygène" n’ apparaît dans aucun des documents consultés. Toutefois, une telle occurrence étant toujours possible, j’ai pris la liberté de l'ajouter comme synonyme.

OBS

DBO5.

Spanish

Save record 1

Record 2 1981-01-26

English

Subject field(s)
  • Wastewater Treatment
CONT

With the FLOPAC system, 60 to 70% of COD is eliminated by chemical flocculation with mineral reagents, followed by settling. The residual pollution is eliminated by submerged biological filtration through BIOLITE.

French

Domaine(s)
  • Traitement des eaux usées
CONT

Le Flopac est un procédé combinant floculation chimique-décantation(ou flottation) et filtration immergée sur BIOLITE après aération. Il permet de porter le rendement d’élimination de la DBO de 70 % environ à la sortie de la phase physico-chimique à 85/90 % après filtration sur BIOLITE.

Spanish

Save record 2

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