Human urine presents a concentrated source of nutrients for recovery at low energy demand and should therefore be captured. Therefore, separate collection and the treatment of urine is one solution to modern wastewater management challenges. For the UC Davis Urine Research Group, a precursor to quantifying, and thus studying, urea hydrolysis in wastewater systems and fertilizer recovery is the need to develop a low-cost, reliable, and effective enzyme to facilitate ureolysis. The purpose of this research project is to optimize and characterize the kinetics and performance of a crude extract to convert urea into ammonia in dilute urine samples using Citrullus lanatus—watermelon seeds! Check out the full details of the research project here.