| 摘要 |
FIELD: chemistry.SUBSTANCE: inventions can be used in treating water at slaughter houses and meat processing plants. Slaughter house and meant processing plant waste water is subjected to mechanical, chemical and biological treatment. Before each treatment step, the waste water is treated with a pulsed magnetic field. The mechanical treatment step employs a fat trap having a reinforced concrete housing with the shape of a parallelepiped, having a slanting bottom (20) with vertical walls (21, 22), on top of which a detachable ceiling (23) is mounted. A detachable bottom ceiling (24) is mounted under the top ceiling (23) at a distance of at least 30 cm. One of the vertical walls adjoins a box (25) for cleaning the fat trap with hot water, steam or mechanically. A pipe for feeding waste water (28) lies opposite the box (25) on the vertical wall (21). A waste water inlet opening (27) lies in the bottom part of the housing next to an emergency valve (26). Vibrators (30, 31) are mounted on one of the vertical walls and at the bottom of the housing.EFFECT: inventions increase efficiency of trapping fatty components of slaughter house and meat processing plant waste water, reduce microbe content by 17% and the coliform index by 25%.2 cl, 2 dwg, 1 ex |
