Filtri a Tela e Torre di Raffreddamento per Industria della Plastica

Cloth Filters and Cooling Tower for Plastic Industry

Cooling and wastewater treatment together: that’s the card that proved successful in supporting a plastics equipment company in northern Italy, which was already working with Group company MITA Cooling Technologies. The possibility of water reuse, through comprehensive management of this resource, is a card that industries can exploit to derive value from blue gold.

  • Cooling and wastewater treatment solutions for a single customer
  • Three supplies, in different stages, of free-fiber cloth filters
  • Efficiency and simple management of the solutions provided
Plastics company in northern Italy
Province of Brescia (Italy)
Interlocutor type
End customer
Scope of application
Industrial Waste Water
Application field
Story in a nutshell
The client is a large group, with operations in four European countries, a manufacturer of plastic equipment and technologies for sewage networks. MITA Group first provided cooling technologies for process fluids for a site in northern Italy and, later, technologies for wastewater treatment and reuse.
List of customer requirements
Suspended solids abatement cooling water (pre- and post-cooling) for reuse in industrial process
Input flow rate
- Average main process line flow rate: 150 m3/h

- Average flow rate secondary and tertiary process line: 80 m3/h each
Input SST
100 mg/l (average inlet SST)
Inlet water T°
About 50°C
Upstream treatment chain
MITA Cooling Technologies process fluid cooling towers
Technologies supplied
- N. 1 sistema a filtri a tela PEC 6/30: 6 dischi orizzontali in vasca di calcestruzzo, 30 m2 superficie filtrante totale

- N. 1 sistema a filtri a tela PECV VM 3/15: 3 dischi verticali, 15 m2 superficie filtrante totale

- N. 1 sistema a filtri a tela PEC 3/15: 3 dischi orizzontali in vasca di calcestruzzo, 15 m2 superficie filtrante totale

Output TSS
< 10 mg/l
Output of other treatments
Phosphorus abatement (as a result of removal of suspended solids)
- TF2 VM pilot filter in operation for definition needs SST removal

- Installation and testing assistance

- One year of maintenance (including chemical washing of cloths)
Key to Success
- Efficiency of proposed filtration
- Previous supply of MITA Group's solutions (cooling towers) for industrial process management

1. Installation context

Water management in industrial processes can be a problem or a resource depending on the solutions adopted: industries that decide to both treat and cool water achieve the double effect of minimizing consumption and making their production more efficient.

Like a company in northern Italy, a manufacturer of plastic equipment for various sectors: already a customer of MITA Cooling Technologies with a PMS evaporative tower, between 2020 and 2023 it relies on MITA Water Technologies for three successive supplies. Specifically, the company, a multinational with a presence in four European countries, requires water treatment solutions for three industrial process lines within one of its plants. The aim: to break down suspended solids in the water, pre- and post-cooling, to reuse the blue resource for industrial machinery.

2. Proposed solution

Water reuse is becoming increasingly popular among industries, which are aware of how much value can be derived from the circular economy: tertiary treatment of wastewater allows for very high quality output.

This is why MITA Water Technologies offers three different models of disc filters to the plastics customer in different tranches. First, a system with PEC 6/30 cloth filters in a concrete tank, with 6 horizontal discs, for a total filtering surface of 30 m2: a solution suitable for purification in the process line with higher average flow rate (150 m3/h). The other two lines, both with an average flow rate of about 80 m3/h, are served by a PECV VM 3/15 system (3 vertical discs, total filtering area of 15 m2); and a PEC 3/15 system in concrete tank (3 horizontal discs, also with total filtering area of 15 m2).

3. Results and key success factors

Filtration efficiency allows the removal of suspended solids in cooling water at levels below 10 mg/l-a very good quality for treated water. Phosphorus removal is a consequence of removing most of the total suspended solids.

MITA free-fiber cloth filters have greater mechanical strength than micro-net solutions, also taking advantage of the principle of depth filtration (instead of two-dimensional) and increasing the useful volume for tertiary treatment.

Also to be considered is that water filters inside the discs and the removed solids remain in the tank: therefore, the free-fiber cloth does not accumulate foreign material, improving the overall robustness of the system. Cloth washing is done by suction, reducing mechanical stress, and reducing energy consumption compared to pressure washing.

Un fattore chiave di successo risiede naturalmente nella precedente fornitura di una torre evaporative da parte di MITA Cooling Technologies, azienda di MITA Group: la possibilità di fornire sistemi integrati per il ciclo dell’acqua (non solo trattamento, ma anche raffreddamento) viene considerato un plus dall’azienda della plastica che dà quindi l’opportunità a MITA Water Technologies di collaborare direttamente in tre diverse fasi.

Ask for Information

Some MITA projects

Tools to help you choose


Industrial and civil wastewater treatment technologies

Simplicity, reliability ... and the lowest product life cycle cost: water treatment solutions from MITA Water Technologies.

Our support throughout the product life cycle

We offer a series of additional support services for our customers: the MITA Lifecycle Services.
Idea icon

A sustainable and efficient solution for every industry and need

Wastewater treatment will increasingly be a resource efficiency and optimization opportunity for organizations in both civil and industrial settings.