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Photosynthetic Façade and Biofiltration Techniques in an Urban Air Quality Tower

Authors:
Jannatun nayeem Nowshin, Naorin tabassum Chowdhury, Farzana Haque, Sruti Srabonti
Photosynthetic Façade and Biofiltration Techniques in an Urban Air Quality Tower

Project in-detail

Utilizing a biophilic design approach with a photosynthetic façade and integrated biofiltration systems, the structure aims to significantly improve urban air quality while providing a vital community space for public interaction.
5 key facts about this project
01
The tower incorporates a photosynthetic façade made from photocatalytic titanium dioxide to actively purify air.
02
A unique integration of mangrove species enhances the building’s natural air filtration capabilities.
03
The bent A-frame design promotes optimal airflow and light penetration throughout the structure.
04
Innovative biofiltration systems utilize recycled filtered water for urban agricultural initiatives.
05
Public green spaces within the tower foster community interaction and environmental education.
The Breathing Tower is a pioneering architectural project designed to address the pressing issue of urban air pollution. This innovative structure exemplifies a thoughtful integration of nature and technology, specifically tailored for cities experiencing significant environmental challenges. Situated in a densely populated urban area in China, the project is conceptualized not merely as a building but as a proactive response to the deteriorating air quality that affects millions of inhabitants.

At its essence, the Breathing Tower represents a commitment to sustainability and environmental stewardship within urban landscapes. The architectural design mimics natural processes, taking inspiration from the way plants purify the air through photosynthesis. This approach underscores the importance of harmonizing human-made structures with ecological systems, elevating the role of architecture in fostering healthier urban environments. The Breathing Tower aims to act as a beacon of hope and innovation, demonstrating that architecture can play a pivotal role in enhancing quality of life through environmental engineering.

The primary function of the Breathing Tower is to purify ambient air, effectively facilitating a cleaner atmosphere for the surrounding community. This is achieved through a combination of advanced materials and systems. The structure employs photocatalytic titanium dioxide, a key material that, when exposed to light, facilitates the breakdown of harmful pollutants in the air. The project also incorporates a variety of plant species, including mangroves, which further enhance the air purification process by naturally absorbing carbon dioxide and releasing oxygen. This dual mechanism of air purification is central to the building’s function, allowing it to mimic the air-cleaning capabilities of a small forest.

Several important design elements contribute to the functionality and aesthetic appeal of the Breathing Tower. Its slender, spiraling silhouette is not only visually striking but also strategic in promoting air circulation while allowing ample natural light to penetrate the interiors. The porous facade, designed to facilitate airflow, is further enhanced by the strategic placement of vegetation. These green spaces, both external and internal, provide recreational areas for residents and visitors while enhancing the overall air quality inside the building. This thoughtful layering of greenery reflects a unique design approach that prioritizes environmental integration and community wellbeing.

Moreover, the tower includes dedicated public areas at the podium level, fostering social interaction and community engagement. These spaces are designed as hubs for educational initiatives, emphasizing the importance of environmental awareness and the role of sustainable design in urban settings. By creating an environment that invites collaboration and learning, the Breathing Tower aims to inspire individuals to consider the impact of architecture on their surroundings.

The architectural materials chosen for this project—such as concrete for structural support and graphene for water filtration—exemplify a commitment to modern, sustainable practices. The use of these materials not only ensures the longevity and durability of the structure but also enhances its efficiency in addressing urban environmental challenges. The focus on sustainable practices extends to the incorporation of filtered water systems, which allows for recycling and efficient use of resources throughout the tower.

The unique design approaches evident in the Breathing Tower raise important discussions around the role of architecture in shaping urban environments. By seamlessly blending technological innovation with ecological processes, this project highlights the potential for architecture to contribute positively to public health and urban resilience. It invites a reevaluation of traditional urban design and encourages the exploration of architectural ideas that foster environmental harmony.

As the Breathing Tower takes shape, it serves as a compelling case study for architects, urban planners, and policymakers alike. It emphasizes the necessity of incorporating sustainability into architectural design, setting a precedent for future projects to follow. For those interested in delving deeper into the specifics of this design, including architectural plans, sections, and various architectural elements, an exploration of the project presentation will provide further insights into its innovative approach and design outcomes.
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100,000€ Prize / 2025

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

Competition organisers

The 10th edition of the MICROHOME architecture competition invites architects and designers from around the world to explore the possibilities of compact, sustainable living. Hosted by Buildner in collaboration with Kingspan and Hapi Homes, this special edition challenges participants to design an off-grid, modular microhome for a young professional couple, with a maximum floor area of 25 m². Designs should prioritize innovation, efficiency, and real-world feasibility. 

A total prize fund of 100,000 € will be awarded, including three main prizes, the Kingspan Award, and the Hapi Homes Award, which will grant 15,000 € and lead to the construction of the selected design. The final registration deadline is September 25, 2025, and winners will be announced on Decebmer 9, 2025. For full competition details and submission guidelines, visit microhome.info.

Microhome

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € PRIZE FUND / KINGPSAN EDITION #10 IDEAS COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Early bird registration deadline 22 May 2025
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