... suck, transport, unload, and load sewage and sludge existing in the sewer lines and rainwater wells, and it can also be ... . By separating sludge from water, the sewage anti-discharge system can send the filtered sewage back into the underground pipelines and then conveying ... up to 6.16m3, a smart type, can work in the narrow urban street , strong dynamic property, and high work efficiency.3 ...