METHOD OF EXTRACTION AND TREATMENT OF BOTTOM MUD Russian patent published in 1995 - IPC

FIELD: sewage treatment. SUBSTANCE: vertical working below the level of bottom mud is accomplished, from which an incline working in the bottom layer is made. An additional reservoir is installed above its outlet in the water basin, from which water is preliminarily pumped out. Then mud sampling is accomplished, and mud layers are squeezed out through the incline working into the vertical working stepwise in layers into separate tanks. The technical facilities of mud extraction comprise the vertical working, hole connecting the working to bottom mud, additional reservoir in the form of a well located above the hole outlet, a solid cylinder is installed inside the well on the mud surface. A facility for pumping-out of water and extraction of mud is installed in the opening, and a waterlock is mounted at the hole entrance in the vertical working. EFFECT: facilitated procedure. 1 dwg