Water Filtration Solutions
Turnaround Wastewater Treatment water treatment system in operation
Application 03

Turnaround Wastewater Treatment

Mobile, fast-deploy treatment for shutdown & turnaround peaks

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OverviewProcess & ParametersChallenges & SolutionsPerformanceFiltrationSchematicSpecificationsLayoutDeliverables
Process Overview

What this application solves

Turnarounds (TARs) generate large, short-duration volumes of contaminated water from equipment cleaning, hydro-jetting, decontamination and chemical cleaning — heavily loaded with oil, solids, spent chemicals and high COD. This water often cannot enter the normal ETP without upsetting it.

WFS provides containerized, trailer-mounted treatment trains that are mobilized to site for the TAR window, treating the peak load on-site and protecting the permanent plant, then demobilized.

Application Parameters

Typical influent characteristics

ParameterTypical range
Flow (peak)20 – 500 m³/h
Oil & Grease500 – 10,000 mg/L
TSS500 – 20,000 mg/L
COD2,000 – 30,000 mg/L
Solids / sludgehigh, variable %

These ranges frame the design basis. WFS confirms the exact values for your site through laboratory characterization and 24-hour composite sampling, capturing variability across normal, upset and turnaround operation before any equipment is sized.

Flow (peak)
20 – 500 m³/h
Oil & Grease
500 – 10,000 mg/L
TSS
500 – 20,000 mg/L
COD
2,000 – 30,000 mg/L
Challenges & Solutions

The problems — and how WFS solves them

Challenges faced
  • Very high, intermittent volumes over a compressed schedule
  • Extreme and variable contaminant loads
  • No permanent footprint available on the live plant
  • Short mobilization windows and strict EHS interfaces
  • Heavy solids and sludge requiring dewatering & disposal
Solutions needed
  • Containerized / trailer-mounted modular treatment units
  • Frac / buffer tanks for surge storage and equalization
  • High-rate coagulation, flotation and filtration
  • Mobile dewatering (filter press / decanter) for sludge
  • Rapid mobilization, operation and demobilization by WFS crews
Performance Parameters

Targets the system is designed to meet

Performance parameterDesign target
Oil & Grease< 10 mg/L
TSS< 30 mg/L
CODmeets ETP inlet / discharge spec
Throughputmatched to TAR schedule

Guaranteed, tested performance

Every WFS system is commissioned against a documented performance test. We design to the discharge consent, reuse specification or zero-liquid-discharge target — and verify it on site before handover, then sustain it through O&M.

Filtration Approach

Filtration approach & system required

Surge storage is the foundation — frac tanks decouple erratic generation from steady treatment. Treatment then runs as a robust, chemically-assisted physical train designed for the worst-case load.

All units are plug-and-play skids with quick-connect hoses, allowing layout to flex around the live plant and the TAR footprint.

Filtration system required
  • Frac / buffer storage tanks
  • Containerized oil-removal & flotation units
  • Mobile coagulation / flocculation skids
  • Bag, media and ultrafiltration packages
  • Mobile filter press / centrifuge
  • Transfer pumps, hoses & manifolds
Treatment Train

Modular process-train schematic

Treatment Train Schematic Influent Treated
  1. 1Surge Storage
    Frac / buffer tanks

    Equalize peak volumes

  2. 2Oil Removal
    Mobile CPI + IGF/DAF

    Strip free & emulsified oil

  3. 3Coagulation
    Inline dosing + reactor

    Destabilize solids & emulsions

  4. 4Filtration
    Bag / media / UF skids

    Remove residual solids

  5. 5Polishing
    Activated carbon

    Reduce dissolved organics

  6. 6Sludge Dewatering
    Filter press / decanter

    Cake for disposal

System Specifications

Indicative system specification

Capacity range
20 – 500 m³/h (peak)
Configuration
ISO-container / trailer mounted
Deployment
Days to mobilize
Power
Grid or diesel genset
Service model
Rental + operated by WFS
Footprint
Flexible, quick-connect
Plant Layout

Layout & general arrangement

A laydown-yard layout: storage tanks at the inlet, treatment containers in series, dewatering and roll-off bins at the outlet, all linked by lay-flat hose. The arrangement is set to suit each TAR's available space and crane/truck access.

Bunded areas and spill containment are provided around every unit to meet live-plant EHS requirements.

Inlet ▸General Arrangement — Plot Plan▸ Outlet
  1. 01
    Surge Storage
  2. 02
    Oil Removal
  3. 03
    Coagulation
  4. 04
    Filtration
  5. 05
    Polishing
  6. 06
    Sludge Dewatering
Utilities · Chemical Dosing · MCC / Control Room · Sludge Handling · Laboratory
Project Deliverables

What WFS delivers

  1. 1TAR water management & volume estimate
  2. 2Mobile treatment design & equipment schedule
  3. 3Mobilization, installation & EHS interface
  4. 4Operated treatment through the TAR window
  5. 5Sludge dewatering & disposal logistics
  6. 6Demobilization & site restoration
  7. 7Treatment & disposal documentation / manifests
Delivery Model

From study to continuous O&M

  1. 01
    Study & Assess
  2. 02
    Characterize Water
  3. 03
    Custom Design
  4. 04
    Pilot & Trial
  5. 05
    Detailed Engineering
  6. 06
    Equipment Design
  7. 07
    Fabricate
  8. 08
    Deliver to Site
  9. 09
    Construct
  10. 10
    Electrical & Automation
  11. 11
    Continuous O&M

Discuss your turnaround wastewater treatment project

Share your stream data and target specification — WFS will characterize the water and propose a custom train.

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