| 摘要 |
FIELD: biological sewage cleaning. SUBSTANCE: bioreactor can be used in town and industrial sewage purification works. It is manufactured in the form of package of aeration works. Package includes fully assembled unit-module structure of individual industrial modules and flat bottom installed at horizontal level. Bioreactor has common aeration tank-mixer, at least two aeration tanks with independent secondary settling basins working in parallel, system of removal of active silt from them connected to secondary settling basins of independent biofilters with submerged aerated charge. Aeration tanks are fabricated in the form of aeration tanks-expulsor pumps, secondary settling basins are placed across outlet from them. Each secondary settling basin is provided with package of pipes mounted vertically. Aeration system includes coarse and fine dispersive aeration tanks, pneumoaeration tanks and air-lifting mixers. Each biofilter is composed of interconnected filtration space and cleaned water basin. Lower part of filtering space houses filtering charge, aeration devices arranged above it and drainage devices having inclination towards cleaned water basin. The latter is equipped with air lift pump of return of cleaned water and used film for its multiple cyclical treatment in filtering vessel. EFFECT: improved operational characteristics of bioreactor, simplified design. 15 cl, 10 dwg |
