The Mini Compact L 3.1 Premium is the compact wastewater treatment plant with extremely high automation and safety features.


  • If you want to minimize the intervention of the operator in the management of wastewater.
  • If you want to reach high levels of safety.
  • If you want to improve your competitiveness by optimizing time, resources and organization.


Single block of only 6 m² (20 ft²).
Space saving.
Integrated clarification and dehydration.
Ease of use.
Automatic and plannable operations.
You save time and reduce human error.
Maintenance reminder service.
High performance maintenance.
Minimized operator activities.
Automatic flocculant preparation and dosing.
You save on the costs of chemical agents and eliminate human error.
Automatic washing of the main accessories in contact with the mud.
High plant lifetime.
The product waste is dehydrated sludge.
An always-clean working place.
15″ touch screen with intuitive software.
Manual loaded in the control panel.
Remote control.
IP55 protection against dust and water jets.
Free space under the filter press.
Movement also from below.
Shipped in two parts: the cylinder and the
platform containing all components.


  • Decanter material: stainless steel or galvanized steel.
  • Height: also available lowered (3.950 mm or 13 ft).
  • Clarified water production: up to 750 l/min (200 US gal/min).
  • Base insulation.

Clarified water production

600 l/min
160 US gal/min

Total installed power

6,5 kW

Transport space

6 m on a truck or container 20 ft on a truck or container

Filter press plates


Plates dimensions

300 x 300 mm
1 x 1 ft

Transport space

1,9 m³/ 8h
6,2 ft³/ 8h


Control panel with 15″ touch screen to manage all plant operations.
Station for the preparation and automatic dosing of the flocculant solution.
Hot-dip galvanized filter press with stainless steel cover and drain channel.
Detail of one of the automatic washings: the nozzles spray the clarified water to clean the filter press cloths.
Hot-galvanized sludge homogenization tank.
Ultrasonic sensor for sludge level detection in the homogenization tank and water level detection in the flocculant tank.

DPURE Software

DPURE is the Dal Prete software created and optimized over the years, in order to adapt to the real needs of customers. Its customized solutions allow to schedule activities and manage clarification and dehydration operations more quickly and efficiently.

Increased automation guarantees a systematic and error-free execution of the different processes, enabling a high level of customization of the functionalities according to the specific objectives of the production.

The DPURE software applied to the Mini Compact L 3.1 Premium has been developed to minimize the intervention of skilled workers on the plant, through an accurate planning of its operation according to the production schedule of the company.
It allows to efficiently and automatically choose when to wash the components in contact with sludge, guaranteeing cleanliness and reliability of the machine.


  • 15” touch screen with display and control of all system components and alerts.
  • Direct connection for remote assistance.
  • Ultrasonic sensors and pressure transducer return a digital signal to the plant software.
  • Cycle planning with weekly work calendar.
  • Automatic washing program for cleaning and rinsing of the parts in direct contact with the sludge.
  • Reminder of periodic maintenance.
  • Possibility of customizing the software.
  • Statistics of plant use.