The optimum raw feather content for keratinase production varies in different reports and concentrations below 1.5% are most frequent, however to maximize accumulation of hydrolysis products concentrations up to 8% were preferable (Embaby et al. 2010, 2015; Silva et al. 2014; Paul et al. 2014; Maciel et al. 2017).
We report the removal of zinc ions from aqueous solution by raw chicken feathers using both batch and continuous systems.
It is noteworthy that to maintain submerged cultivation maximum applicable concentration of raw down feathers is approximately 7% (w/v).
Raw chicken feathers are wastes that are mixed with offal fat, debris, blood, preen oil and other wastes from the poultry process.
Overall, results demonstrate that raw chicken feathers should be regarded as a low-cost alternative for the removal of Zn2+ ions from wastewaters.
Batch sorption data were fitted to various sorption models and results indicate that Zn2+ sorption process using raw chicken feathers followed the pseudo-second order rate model, while sorption isotherms were described properly by Sips isotherm.
On the other hand, breakthrough curves were obtained for the sorption of Zn2+ ions using fixed bed columns packed with raw chicken feathers at different conditions of feed flow rate, metal concentration and pH.
Now you have supplies, equip your character with a set of full iron, strength amulet, a pair gloves, leather boots or boots from the stronghold, and an iron weapon, then go to chickens till about 20 atk and str if you collect raw chicken and feathers around then you'll make about 40-60k.
If you kill a chicken, you get feathers and raw chicken.
The designer made that leap — and more — as he worked in color and pattern, contrasted raw woven linen with light feathers and toughened up the overall look with metallic gold.
