Malta aims to meet EU standards with wastewater project

Malta is set to embark on a significant initiative aimed at separating agricultural waste from urban wastewater, a move intended to align with European Union standards within the next two years. This undertaking reflects Malta's ongoing commitment to enhancing its environmental management practices and ensuring compliance with EU regulations. Karl Cilia, CEO of the Water Services Corporation (WSC), has outlined key aspects of this ambitious project, which promises to reshape the island's wastewater treatment landscape.

Project Overview

The first phase of this initiative involves the issuance of a public tender for the construction of two specialized facilities: one located in Malta and the other in Gozo. These facilities will be explicitly designed to handle agricultural waste, a crucial step towards relieving pressure on the current urban sewage systems. By addressing the specific challenges posed by farm waste, the WSC aims to enhance the overall efficiency of wastewater management in the country.

Investment in Infrastructure

This initiative is included in a broader National Investment Plan, involving a €315 million investment spread over the next ten years. Within this framework, a significant allocation of €66 million will be directed towards upgrading capacity at the primary wastewater treatment plants located at Iċ-Ċumnija in Mellieħa and Ta’ Barkat in Xgħajra. The planned enhancements are expected to increase Malta’s sewage treatment capacity by an impressive 30%, thereby ensuring that the infrastructure can adequately meet the demands of the population.

The Need for Change

The impetus behind this initiative has been underscored by a recent ruling from the European Court of Justice (ECJ), which found Malta in violation of the EU’s Urban Waste Water Treatment Directive. The ruling identified inadequate capacity at both the Ta’ Barkat and Iċ-Ċumnija plants as significant contributors to Malta's non-compliance. The court highlighted that untreated sewage was being discharged into sensitive marine environments, which raises serious environmental concerns.

Cilia has pointed out that the longstanding practice of mixing agricultural waste with household sewage has exacerbated the challenges faced by urban sewage systems. Traditionally, facilities designed to handle urban sewage have been overwhelmed by the additional load of agricultural waste, which is characterized by a lower concentration of biodegradable organics. This imbalance has complicated the treatment process and hampered the performance of wastewater treatment plants for many years.

Understanding the Impact of Agricultural Waste

To illustrate the gravity of the situation, Cilia notes that the waste produced by just 1,200 cows could completely absorb the total capacity of the Iċ-Ċumnija plant. This statistic highlights the substantial impact that agricultural waste can have on urban wastewater systems, emphasizing the necessity of separating these two waste streams.

Cilia asserts that the sewage outflows observed in various bays across Malta during the previous summer were not a result of failures in the WSC’s network or the treatment process. Instead, he attributes these outflows to failures in private drainage connections or illegal discharges directly into the sea, which are independent of any increase in untreated drainage entering Malta’s waters.

Preparing for the Future

The Agriculture Ministry has already initiated preparations for this project by publishing a Prior Information Notice (PIN) in the EU Official Journal, alerting potential suppliers to the forthcoming tender. The new facilities are anticipated to not only separate farm waste but also convert it into valuable products such as fertilizers and other by-products, aligning with sustainable agricultural practices.

Wastewater Treatment Capacity

Currently, Malta’s wastewater infrastructure has faced significant challenges in meeting growing demands. The Iċ-Ċumnija plant, commissioned in 2009, was initially designed to manage 44,000 population equivalents (p.e.) of sewage. However, by 2020, the facility was treating nearly double that amount, at 80,000 p.e. Similarly, the Ta’ Barkat plant, operational since 2011, has been managing a staggering 500,000 p.e. of sewage.

The exclusion of agricultural waste from urban wastewater facilities, along with the planned upgrades at both Ta’ Barkat and Iċ-Ċumnija, is expected to boost their combined capacity to 743,000 p.e. Nevertheless, insiders familiar with the WSC's operations indicate that Malta has historically lacked the necessary capacity to treat all the sewage it generates.

Historical Context and Criticism

Critics argue that prior to Malta's accession to the EU, the government should have advocated for a tailored approach to wastewater management rather than adhering to a one-size-fits-all directive. Some experts contend that the construction of a pipeline to transport sewage 12 kilometers offshore would have been a more economically and environmentally sound solution than the establishment of urban wastewater treatment plants. Although this approach would still necessitate treatment to remove microplastics, it is believed that it could have saved Malta approximately €20 million annually.

Looking Ahead: The Path to Compliance

As Malta approaches 2024, Cilia remains optimistic about the ongoing infrastructure enhancements and the separation of farm waste from the urban wastewater system, which is projected to be completed by 2026. These developments are crucial for positioning Malta to meet EU standards, ensuring that urban wastewater is fully treated before being discharged into the sea.

The forthcoming upgrades, including the installation of a Membrane Aerated Biofilm Reactor (MABR) at Iċ-Ċumnija scheduled for early next year, are expected to further enhance capacity, bringing it up to 95,000 p.e. In addition, the recent commissioning of the retrofitted Sant’Antnin plant has increased Malta South's treatment capacity from 500,000 to 613,000 p.e., marking a 23 percent enhancement.

Conclusion

The decoupling of farm waste from the urban wastewater network will allow treatment facilities to operate more efficiently, significantly improving the quality of effluent released into Malta’s marine environments. As Malta embarks on this transformative journey, the collaboration between governmental agencies, environmental experts, and local communities will be vital in achieving sustainable wastewater management that meets both ecological and regulatory standards.

FAQs

What is Malta's new project regarding wastewater management?
Malta is launching a project to separate agricultural waste from urban wastewater to meet EU standards.

What is the investment amount for this initiative?
The initiative is part of a €315 million National Investment Plan over the next decade.

Why is Malta under scrutiny from the European Court of Justice?
Malta was found in violation of the EU’s Urban Waste Water Treatment Directive due to inadequate sewage treatment capacity.

How will the new facilities benefit Malta?
The new facilities will relieve pressure on urban sewage systems by specifically handling agricultural waste.

What are the expected improvements in wastewater treatment capacity?
The planned upgrades will increase Malta's sewage treatment capacity by 30%.

What challenges has Malta faced with its current wastewater infrastructure?
Malta's infrastructure has struggled to meet growing demand, with facilities often operating beyond their intended capacity.

What is the significance of separating agricultural waste?
Separating agricultural waste will improve the efficiency of wastewater treatment and enhance the quality of effluent released into the sea.

When is the separation of farm waste from the urban wastewater system expected to be completed?
The separation is expected to be completed by 2026.

What new technologies will be introduced in this initiative?
A Membrane Aerated Biofilm Reactor will be installed to enhance treatment capacity at Iċ-Ċumnija.

What are the implications of illegal discharges into the sea?
Illegal discharges can harm marine environments and contribute to pollution, further complicating Malta's wastewater management challenges.