Outil d’ingénierie · Chimie

Conception de la coagulation et de la floculation

Classez les répétitions de dose des essais en jarres et examinez l’interpolation bornée, le mélange rapide et l’hydraulique de floculation.

Purification municipale de l’eau potableÉtape 02 — Coagulation & Conditioning

État: Disponible

PROJECT · OPTIONAL

Project metadata

Optional report context; it does not change calculations.Edit detailsHide details

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01 · USER INPUT

Design basis and inputs

Design flow *m³/d · flow through rapid mix and each flocculation stageMust be greater than 0.Dynamic viscosity *Pa·s · explicit water-property inputMust be greater than 0.Alkalinity consumption factormg/L as CaCO₃ per mg/L dose · optional user-entered factor; blank or zero disables demand

Rapid Mix design mode

Choose one hydraulic basis. Volume and detention are reconciled from this mode and design flow.

Sizing from detention timeEnter detention time; volume is calculated as Q × t.Check existing basinEnter basin volume; detention time is calculated as V / Q.

Rapid-mix detention time *s · user-selected design timeMust be greater than 0.Rapid-mix velocity gradient *s⁻¹ · target GMust be greater than 0.

Jar-Test criterionPerformance criterion

Threshold *response unit

Jar-Test Observations

Enter each replicate separately. A dose level passes only when every replicate passes.

Dose (mg/L)	Response	Replicate ID optional	Row action

Flocculation Stages

Each stage uses design flow and one declared sizing mode.

Stage	Mode	Detention time or volume	G (s⁻¹)	Row action
		Stage 1 detention time (s)Must be greater than 0.	Must be greater than 0.
		Stage 2 detention time (s)Must be greater than 0.	Must be greater than 0.

Calculations run locally in this browser. No input data is sent to an API.

02 · CALCULATED RESULT

Engineering Results

Enter the design basis and observations, then calculate to create a result.

03 · REPORTING

Exports and verification

PDF includes current report metadata. Engineering input changes mark results stale and disable all exports.

Verification suite

Calculation revision 1.1

80 focused fixtures: replicate classification and order invariance, criterion validation, signed responses, conservative interpolation, hydraulic sizing and checks, export state, and invalid-input rejection. Tests are deterministic and run without network access.

Cet outil d’ingénierie est actuellement disponible uniquement en anglais.

Base d’ingénierie

Méthodologie

Classe les réplicats d’essais en béchers selon le critère déclaré et évalue le volume, le temps, G et la puissance dissipée dans le liquide pour le mélange rapide et la floculation, à partir du débit, de la géométrie, de la viscosité et des critères saisis. Cette puissance n’est pas la puissance nominale du moteur, de l’arbre, de l’entraînement ou de la plaque électrique.

Each jar-test observation is classified independently. A dose level is confirmed PASS only when all valid replicates pass; mixed dose levels do not qualify. Replicate responses are not averaged.

Threshold interpolation is linear and bounded to adjacent unique tested dose levels. A replicated dose in a crossing bracket makes interpolation unavailable. Extrapolation is not performed.

Within-range and explicit criteria report dose-level classifications without a single interpolated dose.

Rapid-mix sizing uses V = Q × t or, for an existing basin, t = V / Q. The same physical volume is used for hydraulics and calculated liquid mixing power P = μVG². Gt = G × t.

Each flocculation stage uses either V = Q × t or t = V / Q. Calculated liquid mixing power is P = μVG² and stage Gt = G × t. The sum of stage G×t contributions is descriptive and is not asserted as a universal criterion.

Optional alkalinity demand is the user-entered factor multiplied by the lowest confirmed tested passing dose.

Périmètre / Limites

Utilisez les critères déclarés des essais en jarres et les propriétés de l’eau pour examiner les doses effectivement testées, le volume et la puissance de mélange rapide, ainsi que le temps de séjour et le G×t de chaque étape de floculation.
Does not select a coagulant, predict finished turbidity, predict pH from first principles, or guarantee full-scale performance.
A screening interpolation is not a tested dose and is never substituted for the confirmed tested dose in alkalinity demand.
No universal optimum G or Gt is asserted. Dynamic viscosity has no hidden temperature assumption.
Calculated liquid mixing power is the power dissipated in the liquid implied by entered G, viscosity, and volume. It is not motor, shaft, drive, or electrical nameplate power; equipment selection requires mechanical and drive efficiency and equipment-specific design factors.

Parcours d’ingénierie

Contexte amont

Base de conception et variabilité de l’eau brute Transmettez l’enveloppe de qualité observée et les limites choisies aux décisions de conditionnement et de première séparation.

Décision de cet outil

Conception de la coagulation et de la floculation Classez les répétitions de dose des essais en jarres et examinez l’interpolation bornée, le mélange rapide et l’hydraulique de floculation.

Étape d’ingénierie en aval

Conception des clarificateurs Comparez clarification, flottation DAF ou filtration comme options justifiées par le projet; aucune filière unique n’est présupposée.
Conception de la flottation à l’air dissous (DAF) Comparez clarification, flottation DAF ou filtration comme options justifiées par le projet; aucune filière unique n’est présupposée.
Conception des filtres granulaires Comparez clarification, flottation DAF ou filtration comme options justifiées par le projet; aucune filière unique n’est présupposée.