Method for reducing nitrogen in poultry manure by separating uric acid using gravitational separation

Abstract

The subject of the application is the use of a polymeric material based on a mixture of polylactide and polybutylene succinate in the production of products using the FDM 3D printing technique. The polymeric material based on a mixture of polylactide and polybutylene succinate contains from 20% to 80% by weight of the PBS polymer, preferably 50%, and the polymer mixture is extruded using a twin-screw extruder, preferably with co-rotating screws, in the extrusion machine barrel temperature range from 100°C to 250°C, preferably from 150°C to 200°C, after which the filament is prepared, and in the 3D printing technique the product is prepared, which is then subjected to an annealing procedure at a temperature from 80°C to 120°C, for 0.5 to 5 hours, more preferably 90°C - 100°C, for less than 2 hours.