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50 m³/d industrial effluent treatment system — Botswana

Proposed treatment train for industrial effluent, subject to confirmation of source, flow basis, contaminants and discharge or reuse targets.

Project Background

The client-supplied design basis is 50 m³/d, but the industrial source, flow profile, operating hours, influent characteristics and applicable receiving or reuse requirements remain unconfirmed. The proposed solution is modular and suitable for adaptation once representative wastewater samples, operating data and project boundaries are available. Final equipment sizing and treatment targets will follow engineering assessment.

Our Solution

The proposed train uses a rotary mechanical bar screen to remove coarse material, followed by equalisation, flow control and chemical conditioning to manage variable industrial loads. DAF removes floatable materials and suspended solids where appropriate, while an MBBR provides flexible biological treatment for biodegradable organics. A secondary clarifier, tertiary filtration and disinfection stage can be adjusted or omitted according to the final receiving or reuse standard. Settled or floated solids should be thickened and dewatered using a plate-and-frame filter press, with the filtrate returned to the process where suitable and the cake handled under the applicable waste rules. Once the source, flow data, pollutants, targets and supply scope are confirmed, the process train, equipment sizing, chemical dosing and residuals handling will be finalised.

What We Asked First

Please confirm the wastewater industry and source, whether the project remains active, average and peak flow basis, operating hours, pH, COD, BOD₅, TSS, industry-specific pollutants, discharge or reuse criteria, project stage and supply scope.

Proposed Process Train

  1. 1Rotary mechanical bar screen
  2. 2equalisation and flow-control tank
  3. 3pH and chemical conditioning
  4. 4DAF
  5. 5MBBR biological treatment
  6. 6secondary clarifier
  7. 7tertiary filtration and disinfection
  8. 8sludge conditioning and plate-and-frame dewatering

For Similar Projects

Prepare source and process information, representative samples, flow records, wastewater analysis, applicable discharge or reuse criteria, operating assumptions and a defined scope of supply for engineering review.

Ref. A-009. Client identity is withheld under our client-confidentiality policy. Capacity is shown as a capacity class (design value rounded up to the next 5 at its second significant digit).

How We Deliver

Projects of this type are delivered in the nine stages below. Installation, commissioning and other on-site stages follow each contract's scope. Every stage within our scope produces a written record that we keep on file.

  1. 1 Design basis confirmationAverage and peak flow, influent or gas data, discharge or reuse target Record producedDesign basis sheet
  2. 2 Process & mechanical designProcess calculations, equipment selection, layout and piping Record producedCalculation book, P&ID, general arrangement
  3. 3 Manufacturing & quality controlMaterial and in-process inspection of the main equipment Record producedMaterial & QC records
  4. 4 Factory acceptance test (FAT)Trial run against the design parameters before dispatch Record producedFAT record
  5. 5 Packing & dispatchPacked, marked and shipped against the equipment list Record producedPacking list
  6. 6 Installation or supervisionPer contract scope Record producedInstallation record
  7. 7 CommissioningStart-up, parameter tuning and interlocks Record producedCommissioning log
  8. 8 Performance verificationEffluent or emission checked against the design basis Record producedPerformance test record
  9. 9 Training, handover & after-salesOperator training, document handover, after-sales support Record producedO&M manual, training record

Planning a similar project? Start with these six parameters

  1. FlowDaily average and peak (m³/day and m³/h)
  2. Influent qualityCOD, BOD₅, TSS, pH and anything unusual
  3. Discharge targetThe standard you must meet, or the reuse purpose
  4. Operating hoursContinuous or batch; seasonal changes
  5. Site & civil scopeFootprint, power supply, who builds the tanks
  6. Project stageBudgeting, tender, or ready to order

Send your parameters — initial process recommendation within 24 hours

Frequently Asked Questions

This project is listed in the 50 m³/d capacity class: the design value rounded up to the next 5 at its second significant digit. Exact design values are not published.
The process train under assessment is: Rotary mechanical bar screen → equalisation and flow-control tank → pH and chemical conditioning → DAF → MBBR biological treatment → secondary clarifier → tertiary filtration and disinfection → sludge conditioning and plate-and-frame dewatering.
Yes. Send us your daily and peak flow, influent quality, discharge or reuse target, operating hours and site constraints, and our engineers will reply with an initial process recommendation within 24 hours.

Planning a similar project?

Share your flow, influent quality and discharge target — our engineers respond within 24 hours.

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