Sewage treatment integrated device and treatment technology

The invention discloses a sewage treatment integrated device and a treatment technology. The integrated device comprises a biochemical area, a three-phase separating area, a sand filtering area and aclean water area which are sequentially arranged in the sewage flowing direction. According to the device, a secondary sedimentation tank in a traditional treatment technology is replaced with the three-phase separating area, so that the sludge-water separating effect is good, and moreover, the sludge concentration of the biochemical area is improved, and the quality of drained water is further improved; the quality of the drained water stably meets the first-grade A drainage standard in Standard on Pollutant Emission of Urban Sewage Treatment Factory (GB18918-2002). 本发明公开了种污水处理体化设备及处理工艺，该体化设备包括沿污水流动方向依次布置的生化区、三相分离区、砂滤区和清水区，本发明用三相分离区代替传统处理工艺中的二沉池，不仅泥水分离效果好，而且也提高了生化区污泥浓度，进步提高了出水水质，出水水质可以稳定达到《城镇污水处理厂污染物排放标准》（GB18918-2002）中的级A排放标准。