The City Council of Seville has completed the installation of over twenty aerators in the lakes of the Tamarguillo, Miraflores, and Infanta Elena parks to improve their oxygenation and prevent algae and unpleasant odours.
The City Council of Seville has finished installing over twenty aerators in the lakes of the Tamarguillo, Miraflores, and Infanta Elena parks, an action aimed at improving the oxygenation of these water bodies and preventing issues such as algae proliferation, turbidity, or bad smells.
The intervention, which has involved an investment of 192,591.93 euros, is part of the technical measures promoted by the municipal government to reinforce the ecological balance of urban lakes. The installed equipment includes aerators, submerged diffusers, weighted pipes, and specific electrical installations, adapted to the characteristics of each water body.
The delegate for Parks and Gardens, Evelia Rincón, explained that “this intervention is not an aesthetic or one-off measure, but a technical action to improve the ecological functioning of the lakes and address the causes of the problems that can arise in these types of water bodies.” According to Rincón, the new diffusers increase dissolved oxygen, promote water circulation, and reduce excess nutrients, one of the factors that can lead to algae blooms.
The previous equipment did not have sufficient capacity to oxygenate the entire water body, so a specific intervention has been designed to reinforce the system. The councillor emphasised that “the lakes in the parks require continuous maintenance, especially in a city like Seville, where high temperatures directly influence the water's ability to retain oxygen.”
The action will be completed with a variation of the maintenance lines around the lakes, such as reducing mowing residues or organic matter that may fall into the water, and with information to the public about the importance of not feeding ducks and fish, as these external contributions increase nutrients and deteriorate water quality.
“The goal is clear: to care for the parks, protect their biodiversity, and maintain the water bodies that are part of Seville's green heritage in better conditions,” concluded Rincón. Residents of the neighbourhoods near these parks will notice an improvement in the environmental quality of the spaces, with fewer algae and unpleasant odours, especially in the hotter months.
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