LIFE VERTALIM: Reductions in pollution from the fish canning industry with the use of eco-efficient technology
- The LIFE VERTALIM project will reduce the pollution load in sewer systems by 30% and integrate waste into urban sanitation systems
La Bacaladera, the fish products transformation and marketing company, has managed to reduce its electric bill by 35% and make annual savings of 400 cubic metres in water consumption, thanks to the Clean Production Plan drawn up by AZTI-Tecnalia. Moreover, they have found a market outlet for the 500 tons of salt used in the salting processes of the products, hereto treated as waste.
The Clean Production Plan was mainly focused on three activities: processes, installations and products. In the first they principally sought optimising the consumption of electric energy and water. In order to reduce electricity bill charges, experts at AZTI-Tecnalia adapted the pace of production at the La Bacaladera to the various time slots for electric energy, according to price. In this way, they managed to reduce the amount earmarked for this by 35%. Moreover, the renovation of illumination points has been undertaken; new, low-consumption lighting substituting the old system. This change has meant savings in electricity consumption of 80% for the illumination of the premises.
The reduction of water consumption has been one of the central aspects of the plan. This resource is employed fundamentally in the desalting processes for the fish and in cleaning the premises and installations. The AZTI-Tecnalia experts have devised new desalting processes which have enabled reducing the quantity of water used, allocating part of the water left over to cleaning tasks. In this way they have managed to make savings of 400 cubic metres of water annually.
Within this optimisation of products, a market had been found for a large part of the salt left over from the fish desalting tasks. Bacaladera calculates that it will sell between 300 and 500 tons of this product annually. This sale constitutes an important environmental and economic benefit, as it avoids these amounts of salt being treated as waste and, at the same time, gives rise to financial benefit from their sale.
Bacaladera processes about 6,000 tons of fish every year. The improvement in its procedures for transforming the fish into consumer products means savings to the company estimated at 60,000 euros annually.