Tank Sizing
Determine settling surface area, basin diameter, water depth, and total wall height.
Engineering Calculation Module
Circular Sedimentation Basin
Design Calculation
Design and evaluate a center-feed circular sedimentation basin using a structured Excel workflow for settling-area sizing, tank geometry, feedwell hydraulics, energy dissipating inlet sizing, sludge hopper geometry, effluent weir loading, and design compliance.
AIDIA
Circular Sedimentation Basin Design Calculation
Dashboard Preview
Primary Sizing
ParameterValueUnit
Surface area167m²
Basin diameter14.6m
Side water depth4.0m
Weir length45.8m
Design Review
ParameterResultStatus
Actual SORReviewedPASS
Feedwell velocityReviewedPASS
EDI sizingReviewedPASS
Hopper geometryReviewedCHECK
▦
Excel WorkbookStructured preliminary circular-clarifier design workflow.
○
Tank GeometryPlan and section sizing remain visible for engineering review.
FW
Feedwell & EDICheck feedwell dimensions, EDI sizing, and velocity criteria.
✓
Review-Ready OutputKey dimensions and design checks summarized in a dashboard.
What This Module Helps You Design
Use one consistent engineering workflow to size and review a center-feed circular sedimentation basin. The workbook organizes settling-area sizing, basin diameter and depth, feedwell design, energy dissipating inlet sizing, sludge hopper geometry, effluent weir loading, and overall design compliance in one calculation module.
Feedwell & EDI
Size the feedwell, review velocity below the feedwell, and calculate the energy dissipating inlet.
Sludge & Weir Review
Evaluate sludge hopper geometry and effluent weir loading as part of the preliminary design review.
Calculation Coverage
Preliminary circular sedimentation basin sizing and review from design input through tank geometry, feedwell hydraulics, EDI sizing, hopper geometry, and effluent weir checks.
Design Basis
Flow rate, surface overflow rate, weir loading, solids loading, and project-specific inputs.
Tank Sizing
Calculate required settling area, selected diameter, actual overflow rate, and basin depth.
Center Geometry
Review center water depth, total wall height, and overall circular-basin geometry.
Feedwell Design
Calculate feedwell diameter, depth, and internal hydraulic behavior.
Feedwell Hydraulic Check
Review approach conditions and velocity below the feedwell.
Energy Dissipating Inlet
Calculate EDI size and detention-time-based preliminary geometry.
Sludge Hopper
Evaluate hopper height and geometry for solids collection.
Effluent Weir
Calculate perimeter weir length and review actual weir loading.
Design Compliance
Review key design conditions and overall PASS/CHECK status.
Engineering Workflow
A structured path from project basis to a reviewable preliminary circular clarifier configuration.
1
▤Design Input
Enter flow basis, SOR, WLR, and project assumptions.
2
○Tank Sizing
Determine settling area, basin diameter, and water depth.
3
FWFeedwell Design
Calculate feedwell diameter, depth, and internal flow review.
4
EDIEDI Sizing
Calculate the energy dissipating inlet and related geometry.
5
▽Sludge & Weir Checks
Review hopper geometry and actual effluent weir loading.
6
▦Selected Design
Summarize geometry, hydraulic review, and overall compliance status.
Workbook Preview
A structured Excel calculation with clear inputs, tank geometry, feedwell checks, and a compact dashboard. Detailed criteria and formulas remain inside the purchased workbook.
AIDIA
Circular Sedimentation Basin — Dashboard Preview
Public Preview
Primary Dimensions
ParameterValueUnit
Required surface area166.7m²
Basin diameter14.6m
Side water depth4.0m
Weir length45.8m
Wall height4.5m
Hydraulic Review
ParameterValueStatus
Actual SOR29.8PASS
Velocity below feedwellReviewedPASS
EDI sizingReviewedPASS
Weir loading109.2PASS
Hopper geometryReviewedCHECK
Dashboard Sheet
Summarizes clarifier dimensions, feedwell and EDI sizing, and the main hydraulic review items in one compact overview.
Designed for quick review
The reviewer can understand the selected circular-basin configuration and key design checks without opening every intermediate step first.
Linked to the calculation
Dashboard values update automatically as the design input and adopted geometry change.
Calculation Sheet — Public Preview
Description
Symbol
Result
Unit
Required settling area
A
Calculated
m²
Basin diameter
D
Calculated
m
Feedwell diameter
Dfw
Calculated
m
EDI diameter
Dedi
Calculated
m
Weir loading
WLR
Calculated
m³/m·d
Sludge hopper height
Hh
Calculated
m
Calculation Sheet
Shows the sequence from design basis and settling-area sizing through feedwell geometry, EDI sizing, sludge hopper design, and weir review.
Traceable workflow
User inputs, design outputs, and hydraulic review items remain organized in one consistent AIDIA structure.
Design Check Summary — Public Preview
Check Item
Result
Review Basis
Status
Tank diameter
Reviewed
Internal criterion
PASS
Side water depth
Reviewed
Internal criterion
PASS
Velocity below feedwell
Reviewed
Hydraulic criterion
PASS
EDI detention basis
Reviewed
Internal criterion
PASS
Sludge hopper geometry
Reviewed
Geometry criterion
CHECK
Overall design status
Reviewed
Summary criterion
PASS
Built-in design checks
The module highlights whether tank sizing, feedwell hydraulics, EDI sizing, and weir/hopper conditions are acceptable.
Protected methodology
The public preview shows the review structure without disclosing the complete product equations or internal criteria set.
Designed for Engineering Review
A circular sedimentation-basin calculation should make the clarifier arrangement and main hydraulic checks easy to follow.
| Description | Symbol | Calculation | Unit | Notes |
|---|---|---|---|---|
| Design flow | Q | Project input | m³/d | Design-basis data |
| Required settling area | A | Calculated in workbook | m² | Clarifier sizing basis |
| Basin diameter | D | Calculated in workbook | m | Selected circular geometry |
| Feedwell diameter | Dfw | Calculated in workbook | m | Center-feed arrangement |
| Effluent weir length | Lw | Calculated in workbook | m | Perimeter weir review |
| Velocity below feedwell | Vfw | Calculated in workbook | m/s | Hydraulic review |
No Black Box
Follow the engineering sequence from project basis to circular-basin geometry and hydraulic review without exposing the full product methodology publicly.
▤
Inputs
- Design flow
- SOR
- WLR
- Suspended solids
→
⚙
Calculation
- Area sizing
- Feedwell design
- EDI sizing
- Hopper review
→
▦
Output
- Basin dimensions
- Hydraulic checks
- Weir loading
- Compliance status
Built-in Design Checks
Not just calculated. Checked. The detailed internal criteria set remains inside the purchased workbook.
| Parameter | Result | Review Basis | Status | Action |
|---|---|---|---|---|
| Tank diameter | Reviewed | Adopted internal criterion | PASS | Acceptable in current example |
| Side water depth | Reviewed | Adopted internal criterion | PASS | Acceptable in current example |
| Velocity below feedwell | Reviewed | Hydraulic criterion | PASS | Acceptable in current example |
| EDI detention-time basis | Reviewed | Adopted internal criterion | PASS | Acceptable in current example |
| Weir loading | Reviewed | Hydraulic criterion | PASS | Acceptable in current example |
| Sludge hopper geometry | Reviewed | Geometry criterion | CHECK | Adjust geometry where required |
What's Included
A standardized AIDIA workbook structure for calculation, documentation, and engineering review.
READ ME
Purpose, calculation basis, instructions, responsibility notes, and support information.
Cover
Project identity, document information, and revision fields.
Calculation
Tank sizing, feedwell design, EDI sizing, sludge-hopper geometry, and design checks.
Dashboard
Conceptual arrangement, dimensions, key parameters, and design-check summary.
Abbreviations
Engineering symbols, terminology, and units used throughout the module.
AIDIA Helps With
- Preliminary circular clarifier sizing
- Feedwell and EDI review
- Sludge hopper geometry review
- Effluent weir loading review
- Documentation of design-review items
AIDIA Does Not Replace
- Project-specific engineering judgement
- Regulatory or client-specific requirements
- Vendor-specific equipment confirmation
- Project-specific constructability review
- Professional engineering approval
Related Modules
Explore other AIDIA water and wastewater calculation modules.
Start with a structured circular sedimentation-basin calculation.
Bring settling-area sizing, feedwell and EDI design, hopper geometry, and design review into one structured AIDIA Excel workflow.