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- Title
Resource saving wool washing technology.
- Authors
Oseiko, Mykola; Romanovska, Tetiana
- Abstract
Introduction. Washing of wool is carried out in an aqueous environment in order to remove contaminants and wool fat (zhyropit). Remove sewage from sewage. The purified fat of wool (food additive E913, lanolin) is widely used in the production of food, perfumery, cosmetics and specialty products and preparations. Materials and methods. Sles 70 was washed with wipes. To find rational wool washing parameters, the mathematical planning of the experiment was performed using Latin squares. Experimental data was processed using mathematical statistics in the Matcad package. Results and discussion. The influence of Sles 70 concentration in the washing solution in the range of 0.53.5 g/dm3, the hydromodule 1050, the temperature 2050 °С and the duration of washing 2 to 32 minutes were determined for extraction of extractives from sheep wool into a washing solution. The rational parameters of washing of fine-wool hair are revealed, influential factors are determined. The possibility of reducing the amount of water used during washing is studied. A regression equation is obtained that approximates the effect of normalized factors on the refractive index n (nD20) of waste water. Three essential and significant factors on the amount of extracted substances extracted in the washed solution are selected. The most influential factor on the refractive index of the spent washing solution is the temperature. Further on the significance of the effect is the hydromodule, with the temperature and the hydraulic module exhibit a measurable effect on the refractive index. The less important factor is the duration of the washing process. The concentration of detergent Sles 70 was an ineffective factor in the process of washing the wool, since the detergent was sufficient to form a micelle in a clean solution. Conclusions. It is determined that within the limits of the investigated range, the rational mode is as follows: washing at a temperature of 40 °С and a hydromodule of process 10 (the ratio of aqueous solution: wool 10:1) for a duration of 10 minutes washing solution Sles 70 at a concentration of 1 g/dm³.
- Subjects
WOOL-fat; POLLUTANTS; REFRACTIVE index; MATHEMATICAL statistics; DETERGENTS
- Publication
Ukrainian Journal of Food Science, 2017, Vol 5, Issue 2, p207
- ISSN
2310-1008
- Publication type
Article
- DOI
10.24263/2310-1008-2017-5-2-5