Sludge Basin

Sludge Basin

 

a waste purification installation for desiccation of sediments (sludge) deposited from sewage during settling or from sewage left to decay in digestion tanks. The basic part of the installation consists of leveled-off plots of land surrounded by earthen banks, through which sludge conduits extend for the supply of sediments. Damp sediments from settling tanks or fermented sediments from digestion tanks or other units are periodically accumulated in a shallow layer in the sludge basin and dried somewhat. As a result of this drying the water content of the sediment is reduced by 20–25 percent, and they acquire a texture of moist earth. They are then taken away as fertilizer for farm lands. Sludge basins are generally set up on high-filtering natural ground (sand, sandy loam) or on artificial foundations with drainage facilities.

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Emptying of 1 700 m sludge from the sludge basin in August 2016, marketing and measurement of sludge surface before and after emptying, transport and final positioning, authority documentation option for the years 2017-2020.
Dewatering facilities, pump seal lubrication water throughout the plant, washwater for activated sludge basin / clarifier foam & scum control and for general housekeeping, landscape irrigation, and similar uses that do not require non-potable water.
The project comprises on the one hand the concrete restoration and upgrading for a current process of clarification and pre-treatment, including a sand trap, a rainwater clarifier, 2-strass precalmentation basins, 2-strassified activated sludge basins, 2-strass clarification basins, gutters, drains, other concrete components in contact with wastewater treatment, the project includes the structural adjustments of the concrete ponds for the new process, as well as new soil and mud drainage systems.
Purging the waste water & sludge basins serving the filters & purifiers of all three stages of Al Obour water treatment plant.
Two tenders for conducting the required (a) elevation & purging of sludge basins at subordinated waste water treatment plants & (b) purging of un aerated basins at sanitary drainage water treatment stations in Komombo.
Operating treatment plants Market, pumping stations of sewerage systems, and maintenance of storm and composting and land application of sewage sludge basins.
The Work To Be Performed Under This Contract Shall Consist Of Furnishing All Labor, Equipment, And Materials Necessary To Construct The Following: 1) Medium Rate Activated Sludge Basins (mras) 2) Secondary Clarifiers 3) Blower Building Modifications 4) Waste Activated Storage Basin (was) 5) Solids Handling Building 6) Disinfection Building 7) Sludge Pump Station 8) Plant Drain Lift Station 9) Vactor Cleaning Station 10) Recoating Clarifiers 11) Primary Clarifier Effluent Trough 12) Yard Piping 13) Storm Water Pond Improvements 14) Insulating Digester Roof 15) Scada System 16) Electrical Improvements 17) Site Work 18) Other Items As Specified And/or Shown On The Drawings.
Contract notice: Flushing and composting sludge basins 1, 2 and 3 of the treatment plant.
Contract notice: Emptying the sludge basins and disposal of sewage sludge.
Work at the Water Treatment Plant consisting of construction of 65 foot diameter sludge concentrator basin and modifications to existing pump station, demolition of existing sludge basins, electrical motor control center (MCC) replacement; sludge piping modifications and minor electrical improvements at the Walnut Branch WWTP and portable belt press pad and non-potable water pump station at the Walnut Branch WWTP and the Geronimo Creek WWTP.