Scientists at Nanyang Technological University (NTU) in Singapore have developed a groundbreaking solar-powered process to convert sewage sludge into green hydrogen for clean energy and single-cell protein for animal feed. Published in Nature Water, this innovative method tackles global concerns around waste management and sustainable resource production. Traditional disposal methods for sewage sludge like incineration and landfill are not only time and energy-intensive but also contribute to environmental pollution. NTU's three-step process, powered by solar energy, integrates mechanical, chemical, and biological techniques, proving to be more efficient than anaerobic digestion. The trials showed that NTU's process recovers more resources, eliminates heavy metal contaminants, has a lower environmental impact, and is more economically viable. This advancement holds promise for sustainable energy production, animal feed generation, and reducing the environmental impact of sewage sludge disposal, contributing to global cleaner energy solutions and circular waste management systems.