Aerated Grit Chamber
1Duty & chamber
Results — chamber & air
| Item | Value | Basis |
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2Air & blower
| Item | Value | Basis |
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Operation envelope
| Item | Value | Basis |
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Quote the grit instruments at factory price
An aerated chamber needs an inlet magnetic flowmeter, a level transmitter, a blower and its air-flow signal — all mappable to our catalogue and supplied at the manufacturer's ex-works price (margin from the export rebate only).
Request a quote for this duty ← Headworks Primary Clarifier →Sources & parameter basis
| [1] | METCALF & EDDY 5th ed. / WEF MOP-8 — aerated grit detention 1–3 min, air 0.3–0.6 m³ air per m³ water, channel depth 2.5–4.5 m, design grain 0.2 mm, grit 5–10 L per 1000 m³. |
| [2] | Volume V = Qp·t; cross-section n·b·H; length L = V/(n·b·H); horizontal velocity = Qp/(n·b·H). |
| [3] | Air demand = AirRate·Qp; blower capacity = AirRate·Qp·60 (standard m³/min). Grit bulk density ≈ 1600 kg/m³ (wet). |
How do I size an aerated grit chamber?
Chamber volume comes from peak-flow detention time; channel length and the diffused-air rate keep 0.2 mm sand moving to the bottom while organics stay suspended. The calculator returns chamber volume, channel length, and the diffused-air requirement.
What blower capacity does an aerated grit chamber need?
The diffused-air system needs a blower sized for the air requirement at peak flow, plus margin. The calculator outputs blower capacity and the daily grit production for tropical municipal WWTP headworks.
Why capture grit before biological treatment?
Grit abrades pumps, fills pipes, and buries aeration diffusers if it reaches the tanks. Removing it at the headworks protects downstream equipment; the calculator sizes the grit removal up front.