Biorulli e Filtri a Sabbia per Depositi Costieri di Esso

Biodiscs and Sand Filters for Coastal Depots of Esso

MITA Water Technologies provided ESSO Italiana with wastewater treatment solutions at the coastal depots in Naples and Palermo. Through the use of continuous regeneration sand filters and Biorulli(r) biodiscs, significant results were achieved, such as reduced energy consumption and maintenance costs, plant modularity, and compliance with current regulations. The proposed solution enabled ESSO Italiana to efficiently manage wastewater and achieve numerous operational benefits.

  • Supply for waste water treatment to ESSO Italiana (reduction in consumption, maintenance costs)
  • Continuously regenerating sand filters, Biorulli(r) biodiscs: efficient solutions for wastewater management
  • Modularity, ease of management, regulatory compliance: sustainable solutions for wastewater treatment
Company
ESSO (Naples and Palermo branches)
Year
2004
Location
Naples and Palermo (Italy)
Interlocutor type
End customer
Scope of application
Industrial Wastewater
Application field
Oil & Gas
Story in a nutshell
ESSO Italiana commissioned MITA Water Technologies in 2004 to supply the main wastewater treatment equipment at the Naples coastal depot.
List of customer requirements
- Treatment of wastewater, rain water, displacement water, tank drainage water according to Italian Legislative Decree No. 152/1999 (disposal in compliance with regulations)
Technologies supplied
- Naples: Filtrasand FS 5/1 model continuous regeneration sand filter for pre-treatment; Biorulli model B 200-40-1 for biological treatment

- Palermo: Filtrasand FS 3/1 model continuous regeneration sand filter for pre-treatment; Biorulli model B 200-27-1 for biological treatment
Key to Success
Reduced energy consumption, minimal maintenance, modularity, ease of management, space saving

1. Installation context

In 2004, ESSO Italiana commissioned MITA Water Technologies to provide wastewater treatment solutions at its coastal depots in Naples and Palermo. These plants manage rainwater, overflow water and tank drainage water, in accordance with Legislative Decree No. 152/1999.

2. Proposed Solution: Naples

The Naples plant is based on a treatment cycle consisting of several stages. Initially, wastewater is accumulated and then passes through a sand filtration process. Next, nutrients are added and triple-stage bioreactor oxidation is carried out. After final sedimentation, the sludge is stored.

MITA Water Technologies provided the equipment for two stages of treatment: a continuous regeneration sand filter model Filtrasand FS 5/1 for pre-treatment and three model B 200-40-1 bioreactors for biological treatment. The use of the Biorulli(r) has enabled ESSO Italiana to achieve numerous advantages, such as reduced footprint, reduced energy consumption, reduced operation and maintenance costs, and the possibility of developing a modular solution that can be expanded over time. The presence of the Filtrasand continuous regeneration sand filter helped increase the effectiveness of the pre-treatment process.

3. Proposed Solution: Palermo

Similar to the Naples plant, the Palermo plant follows a similar treatment cycle. Wastewater is accumulated and subjected to filtration on sand. Next, nutrient dosing and triple-stage bioreactor oxidation are carried out. After final sedimentation, the sludge is stored. MITA Water Technologies supplied the equipment for two stages of treatment: a continuous regeneration sand filter model Filtrasand FS 3/1 for pre-treatment and three model B 200-27-1 biorolls for biological treatment.

Again, the application of the birollers enabled ESSO Italiana to achieve the same advantages of space containment, reduced energy consumption, lower operation and maintenance costs, modularity and ease of operation.

4. Results Achieved

Thanks to the solutions provided by MITA Water Technologies, both the plants in Naples and Palermo have achieved significant results. ESSO Italiana has managed to reduce energy consumption, minimize maintenance interventions, efficiently manage spaces, and comply with current regulations. The modularity of the proposed solutions also allows for future expansion of the plant according to the company’s needs. The continuous regeneration sand filter Filtrasand and the use of bio-rolls have been crucial in ensuring a higher effectiveness of wastewater treatment, contributing to the overall success of the plant.

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