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Compact Pretreatment

Combi Pro Mini
Mini Compact Pretreatment Plant

The compact, self-contained version of the Combi Pro, developed for small WWTPs, condominiums, hotels and low-flow applications. Combines automatic screening and grit removal in a vertical compact stainless steel structure, installable in confined spaces.

Combi Pro Mini miniaturized pretreatment plant by Estruagua
Miniaturized
Configuration
2 in 1
Screen + Grit Removal
Vertical
Orientation
Stainless Steel
Material
Estruagua
🇪🇸 Spain

Complete pretreatment for small installations

The Combi Pro Mini is the miniaturized version of the Estruagua Combi Pro line, designed specifically for smaller applications where available space is limited. The compact vertical structure in stainless steel integrates automatic screening and grit removal in a single low-impact, easy-to-operate unit.

Installed on an elevated platform with safety handrails, the Combi Pro Mini requires minimal civil infrastructure and operates completely automatically. The two inclined screw conveyors (one for screened solids and one for grit) remove and transport the waste to the discharge points, keeping the operating area clean and safe.

Minimal Footprint Required

Vertical structure with a small footprint allows installation in locations with severe space constraints.

Fully Stainless Steel Construction

Vertical body and all conveyors in stainless steel for maximum durability and hygiene.

Plug-and-Play Installation

Factory pre-assembled unit with simplified connection to pipework and electrical supply.

Combi Pro Mini Estruagua installed on elevated platform with safety handrails
Combi Pro Mini installed on an elevated platform with safety handrails

How does the Combi Pro Mini work?

Raw sewage is admitted through the inlet duct at the bottom of the unit and passes through the screening mechanism integrated into the vertical body. The automatic screen retains coarse and fibrous solids, which are collected and transported upward by the inclined screw conveyor, discharging the waste into a container positioned below the discharge point.

The screened effluent flows into the grit removal chamber, where the internal geometry promotes flow velocity reduction and settling of sand and mineral particles. The grit classifier screw continuously withdraws the settled material, dewatering it before disposal, ensuring grit with low moisture content and minimised odours.

1. Admission and Screening

Raw sewage enters and the automatic screen retains coarse and fibrous solids.

2. Vertical Waste Transport

Inclined screw continuously elevates and discharges the retained solids.

3. Grit Removal and Dry Disposal

Grit chamber removes sand; classifier screw extracts and dewaters it before disposal.

Detail of inclined screw conveyors of Combi Pro Mini
Two independent inclined screws for separate solids and grit transport

Combi Pro vs Combi Pro Mini

Combi Pro

  • Higher flow capacity
  • Robust horizontal structure
  • Installation on concrete slab
  • For medium and large WWTPs
  • Ideal for municipalities and industry

Combi Pro Mini ✓ This page

  • Designed for low flows
  • Compact vertical structure
  • Installation on elevated platform
  • For condos, hotels, small WWTPs
  • Smaller footprint and civil cost

Combi Pro Mini Applications

Residential Developments

Pretreatment for local sewage treatment systems in residential communities

Hotels and Resorts

Discreet and efficient pretreatment for facilities with local effluent generation

Small Municipal WWTPs

Upgrading pretreatment at small municipal stations with limited space

Small Industries

Protection of industrial treatment systems against coarse solids blockages

Retrofit in Confined Spaces

Replacement of obsolete manual screening where available space is very limited

Rural and Remote Stations

Autonomous pretreatment for remote installations with minimal operator intervention

Estruagua: specialists in wastewater pretreatment

Estruagua is a Spanish company with decades of experience in the design, manufacture and installation of wastewater pretreatment equipment. The portfolio ranges from manual screens to fully automated compact plants, with solutions for any installation size.

3CIME Water Solutions is the exclusive representative of Estruagua in Brazil, providing expert technical sizing, supply, commissioning, original spare parts and local technical assistance for all equipment in the line.

Pretreatment Specialist

The entire Estruagua product line is dedicated to pretreatment, with decades of technological evolution.

Local Technical Support

3CIME provides technical support, sizing and spare parts in Brazil.

Estruagua logo
🇪🇸

Estruagua S.L.

Spain · Pretreatment Equipment Specialist

Screening Grit Removal Compact
Exclusive partner of 3CIME Water Solutions in Brazil

Related Technologies

Need compact pretreatment for a confined space?

Our technical team evaluates your needs and presents the ideal Combi Pro Mini solution for your project.

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