| 摘要 |
PROBLEM TO BE SOLVED: To provide a inexpensive and compact livestock sewage treating system in which the sewage is decomposed and purified to the water capable of being directly discharged into rivers, sewaer, etc. SOLUTION: This sewage treating device is provided with settling tanks 2a and 2b for settling livestock sewage, a solid-liquid separator 3 for separating the sewage freed from solids by settling, an aeration tank 4 for biologically decomposing the sewage freed from solids by solid-liquid separation, a vibrating screen 5 for removing solids from the biologically decomposed sewage, an electrolytic floating device 7 for electrolyzing the sewage freed from solids by the screen 5, a membrane separator 8 for treating the electrolyzed sewage with a membrane, an ozonation tank 9 for ozonating the sewage treated by the separator 8, ceramic treating devices 11 and 15 for bringing the ozonated sewage into contact with a ceramic sintered compact and an activated-carbon adsorption tank 13 for treating the sewage treated in the ceramic treating device 11 with activated carbon. |
