COMPARTMENT OF SLUDGE POND FOR INDUSTRIAL ENTERPRISES WASTES, METHOD OF ITS DEVELOPMENT AND METHOD OF ITS PRESERVATION Russian patent published in 2010 - IPC E02B7/06 E02B1/00 

FIELD: construction.

SUBSTANCE: compartment of sludge pond comprises a fencing structure made of soil material, antifiltration device made of polymer rolled material arranged on compartment base and upper slope of fencing structure and coated with filtering protective layer, wasteway well with a drain header, system of wastes hydraulic transport, and drainage system, tubular drains of which in plan are arranged within the borders of beach area in filtering protective layer of antifiltration device, and drain sections are arranged along compartment perimetre. Distribution pulp line of hydraulic transport system is arranged on fencing structure and is equipped with groups of outlets, and drain sections are equipped with drain headers, every of which beyond compartment borders is equipped with a locking device and is communicated by waterline to system of hydraulic transport. In process of compartment formation each group of outlets in distribution pulp line is arranged in plan above single drain section, and compartment is equipped with the facility that provides for detection of ground water surface elevation in wastes of beach zone. After inwash of the first tier wastes into compartment, facility is used to monitor level of ground water surface in wastes of beach zone, and water is taken from drain sections and sent to system of hydraulic transport of wastes with intensity that provides for establishment of safe elevation of ground water surface along compartment perimetre in wastes of inwashed tier beach zone. In process of sludge pond compartment preservation, inwash is carried out above preservation body section, afterwards surface of preservation body is recultivated. Prior to inwash of preservation body, due to safety conditions, they define maximum elevation of ground water surface in wastes upstream fencing structure ▼max and volume of water q, sent from drainage system to system of hydraulic transport of wastes. In process of preservation body inwash they monitor elevation of ground water surface upstream fencing structure ▼inwash, and volume water arrival from pulp into compartment a is limited by the condition ▼inwash≤▼max, i.e. annual balance of water B in compartment is provided as negative or equal to zero.

EFFECT: improved reliability of compartment and reduction of costs.

10 cl, 2 dwg