Creating fertilizers from organic waste can significantly reduce fossil fuel consumption and promote sustainable agricultural production. One innovative method is hydrothermal liquefaction (HTL), which converts biomass into biocrude oil through a high-temperature, high-pressure process. Two studies from the University of Illinois Urbana-Champaign explore the use of a fungal treatment to convert the leftover wastewater from HTL into fertilizer for agricultural crops.

“HTL uses wet biomass from organic sources such as swine manure or food waste. The process yields wastewater, called hydrothermal liquefaction aqueous phase (HTL-AP), which is usually discarded. We know it contains nutrients that can be used for fertilizer, but they are mostly in organic forms that plants can’t access. HTL-AP may also contain toxic heavy metals, depending on the type of biowaste,” said co-author Paul Davidson, an associate professor in the Department of Agricultural and Biological Engineering (ABE), part of the College of Agricultural, Consumer and Environmental Sciences and The Grainger College of Engineering at Illinois.

AI audio firm ElevenLabs has inked agreements with the estates of iconic figures such as Judy Garland, James Dean, and other legendary stars to use their voices for reading books, articles, PDFs, and more through its new Reader App.

ElevenLabs envisions users enjoying Garland’s legendary voice reading the original L. Frank Baum novel “The Wonderful Wizard of Oz” or Laurence Olivier delivering a Sherlock Holmes story, among other works. The company emphasizes that it has secured license agreements for the authorized use of these iconic voices as part of the “Iconic Voices” feature of its app.

Researchers at The University of Texas at Austin have engineered a new type of soil infused with a hydrogel material that can capture water from the air and provide a controlled release of fertilizer. This innovative “smart soil” significantly enhances plant growth and reduces water and fertilizer usage.

“This new gel technology can reduce the burden on farmers by decreasing the need for frequent irrigation and fertilization,” said Jungjoon Park, a graduate student in the Walker Department of Mechanical Engineering who led the research. “The technology is also versatile enough to be adopted across a wide range of climates, from arid regions to temperate areas.” The research was recently published in ACS Materials Letters.