Liquid Tree and its Importance in Metro Cities – A Mini- Review

Abstract

Urbanization and air pollution are significant challenges affecting metropolitan cities globally, leading to increased temperatures and deteriorating air quality. Traditional green solutions, such as planting trees, often fall short in densely populated areas due to limited space and poor soil conditions. Liquid trees, a novel solution using microalgae in photobioreactors (controlled systems designed for cultivating photosynthetic organisms under optimized conditions), present a viable alternative, present a viable alternative for enhancing urban air quality. These systems utilize microalgae’s high photosynthetic efficiency to absorb carbon dioxide and release oxygen, making them 10 to 50 times more effective than conventional trees. Liquid trees can be implemented in compact urban spaces, including rooftops, facades, and public areas, providing continuous air purification without the constraints of soil and space. Additionally, they offer benefits like biofuel production, biosorption of heavy metals, and wastewater treatment. This innovative approach addresses key urban challenges such as pollution, climate change, and the heat island effect while contributing to sustainable urban development. By integrating liquid tree systems into urban planning, cities can improve resilience, adapt to environmental stressors, and ensure a cleaner and healthier environment for residents. The adaptability and efficiency of liquid trees position them as a critical component of future urban area development strategies, providing a scalable solution to modern environmental challenges, along with ensuring sustainable development.