Phosphorus Recovery from Wastewater: Bioavailability of P Bound to Calcareous Material for Maize (Zea Mays L.) Growth

(1) Phosphorus (P) is an essential plant nutrient, and P deficiency negatively affects growth development. Furthermore, a finite nonrenewable resource, there urgent need to recover from some of the important waste streams in society. Newly engineered calcareous materials (sol–gel coated cat litter (CATSAN®)) can bind wastewater decentralized treatment systems potentially enable recycling into agricultural production by direct addition saturated material. (2) The effects two P-enriched as fertilizers for maize (Zea mays L.) were investigated mesocosm experiment. We compared fertilization with at rates 6, 12, 25, 50, 100 kg ha−1 yr−1 commercial NPK fertilizer. (3) had significant positive effect on height, biomass, maximum light-saturated photosynthetic rate, respiration total content biomass. However, plants fertilized fertilizer performed significantly better majority measured parameters identical rates. (4) bioavailability bound material was very low. studied has potential be used part solution remove subsequently recycle wastewater.