Nestled in the heart of Bulgaria, among gentle hills and centuries of history, lies the historic village of Neofit Rilski—a unique park dedicated to preserving the country’s rich cultural and architectural heritage. From the prehistory to the Second Bulgarian Empire, the site offers an educational journey through time with reconstructions, traditional buildings and natural settings.
Alongside its cultural significance, the park is also home to artificial ponds and waterways that play a vital role in shaping the landscape and supporting local biodiversity. But how can the water quality be preserved over time in such a rich and delicate ecosystem? And how can stagnation, oxygen deficiency or algal overgrowth be prevented?
The answer comes from Acqua&Co’s advanced technology, which has been used to design and install a complete system for water oxygenation and circulation. Our team combined fountain aerators with submersible recirculation systems, all fully integrated within the environmental and historical context.
Maintaining healthy aquatic ecosystems in parks through proper aeration
The ponds and little water basins within the Neofit Rilski Park are essential not only to the area’s biodiversity, but also to its immersive experience for visitors. Without effective water management, it can quickly become stagnant, depleted in oxygen and prone to the growth of algae and bacteria.
The use of both surface and submersible aeration systems ensures constant water movement, which helps to reduce organic sediment and support fish, water plant and microorganisms’ life. Aerators are particularly effective in restoring ponds’ natural biological equilibrium, preventing the visual, olfactory and ecological deterioration typically seen in poorly managed water bodies.
Why algal blooms must be prevented
One of the most common consequences of poor oxygenation in ponds is the uncontrolled spread of filamentous or floating algae. These blooms discolour water, produce foul smell, and smother other aquatic organisms.
Want to learn more? Read our article: Why algae form in ponds and how to eliminate them effectively, where we discuss causes, solutions and professional tools for long-term algae control.
Fountain aerators and submersible systems: Acqua&Co solutions for ponds and streams
For the Neofit Rilski Park project, Acqua&Co implemented a combined system consisting of fountain surface aerators and submersible oxygenation and recirculation units.
Fountain aerators combine aesthetic elegance with functional value. Their continuous water jets ensure oxygenation at the surface level and help maintain the pond’s biological vitality. At the same time, they create visually pleasing water displays that blend beautifully into the park’s natural and historical site, enhancing its scenic appeal.
These technologies were selected for their:
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minimal visual impact;
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high efficiency in maintaining optimal dissolved oxygen levels;
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adjustable water flow, tailored to seasonal and environmental needs.
At greater depths, submersible oxygenation systems take centre stage. These operate quietly and continuously, encouraging water movement in deeper layers and preventing the formation of anoxic zones. They also promote the natural decomposition of organic material, significantly reducing the risk of sludge build-up.
Key advantages of submersible systems:
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uniform circulation throughout the entire water body;
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prevention of thermal layering;
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reduced manual maintenance and long-term cost savings;
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completely hidden from sight, preserving the park’s aesthetic integrity.
Water treatment technologies that safeguard the environment
The installation of Acqua&Co systems at the Neofit Rilski Park was the result of a carefully tailored design approach. Each device was selected based on a variety of site-specific factors, including pond depth and shape, plant and animal species present, aesthetic and landscape goals, energy efficiency and overall sustainability requirements.
The entire system was developed using corrosion-resistant materials and low-energy components ensuring seamless environmental integration. The result is a high-performance solution that works invisibly and in harmony with the park’s surroundings, keeping the water clean, oxygenated and ecologically balanced.
This project is a perfect example of how cutting-edge technology and biodiversity conservation can coexist and mutually reinforce one another.
A scalable oxygenation solution for ponds in any setting
The installation at the Neofit Rilski Park stands as a best-practice model of synergy between technology, landscape and ecosystem health. Acqua&Co’s systems can fit various contexts, including:
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urban parks, water gardens and heritage landscapes;
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protected natural reserves;
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wildlife centres and educational parks;
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private estates, villas and resorts.
Every project is developed individually, beginning with an analysis of the aquatic environment and continuing through to device selection and on-site installation. With extensive experience in the sector, Acqua&Co supports public authorities, designers and private clients in creating custom systems that keep water bodies healthy, balanced and oxygenated over time.
Get in touch with our team for tailored advice. Our specialists will help you design the ideal system—efficient, discreet, and sustainable—fully suited to your landscape and environmental goals.
