Evaluation of Poultry Manure: Combination of Phosphorus Recovery and Activated Carbon Production
Makaleler > Tam Makale · 2022
Yazarlar: Nurdan Sevde Topçu, Gözde DUMAN TAÇ, Hayati OLGUN, Jale YANIK
ACS Omega, SCI Expanded İndekslerine Giren Dergi, Uluslararası, Wos, 2022, cilt 7, ss 20710-20718
Özet
High Resolution Image Download MS PowerPoint Slide Intensive growth of poultry production leads to generation of a large-scale accumulation of wastes, which is a critical concern for poultry farming. An environmentally friendly and effective solution is still being sought for sustainable management of poultry manure. In this study, evaluation of poultry manure both as a carbon source for production of solid fuels and activated carbon and as a phosphorus source has been investigated. The study focuses on the following: (1) biochar and hydrochar production under different process conditions for production of carbon-rich fuel from poultry manure; (2) phosphorus recovery by acid leaching–alkali precipitation from manure ash, biochar, and hydrochar; and (3) activated carbon production from acid-leached hydrochar and biochar. The results reveal that production of biochar and hydrochar is not a promising method for upgrading laying hen manure into an energy-dense solid fuel. Phosphorus in ash and chars was recovered as amorphous calcium phosphate with yields of 57.3–48.5% by acid leaching–alkali precipitation. Untreated and acid-leached chars were subjected to a chemical activation process with KOH and ZnCl 2 to produce activated carbon. Due to the catalytic effect of inorganics in chars, the KOH activation resulted in a very low yield of activated carbon. The surface areas of activated carbons prepared using ZnCl 2 were comparable to activated carbons derived from typical biomass using ZnCl 2 .