Nitrogen and phosphorus release from dehydration products of urine mixed with pine bark feedstock, biochar types and ash.

ABSTRACT: Human urine contains large quantities of nitrogen (N) and phosphorus (P), yet most of it is lost to the environment untreated, resulting into nutrient loss and environmental pollution. Although several studies have evaluated nutrient recovery from urine, little is known about how pine bark (PB) and its derivatives (biochar and ash) influence N and P release from dehydrated urine products in soil. This study evaluated effects of various products derived from dehydration of urine, mixed with solid materials from pine bark (PB) on mineral nitrogen (N) and phosphorus (P) availability in soil. The PB materials included feedstock, biochar (pyrolysed at 350 and 650 °C) and ash. The mixtures of urine and these materials were dehydrated at 45 and 60 °C in the oven. Others from PB were also dehydrat

SUBMITTER: Vilakazi SP 

PROVIDER: S-EPMC12606123 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature