Design of Sewerage
The major shortcoming of the conventional design is the selection of pipe diameter and slope combination without fully analyzing the total cost of the…
Category: Sewage Treatment
AERATED LAGOON
Principe of Aerated Lagoon An aerated lagoon is a suspended-growth process in waste water treatment unit. The aerated lagoon water treatment system consists of…
Waste Stabilization Ponds
HISTORY OF WASTE STABILIZATION PONDS Wastewater lagoons have been used as a process for wastewater treatment for centuries. In the 1920’s artificial ponds were…
CARROUSEL SYSTEM
The Carrousel system is based on the principle of oxidation ditch where primary settlement, the activated sludge process, secondary settlement and sludge mineralization can…
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Cage Rotor
Cage Rotor One or more mechanical surface aerators with horizontal axis, generally known as cage rotors are attached to the side of the ditch.…
OXIDATION DITCH
Description of Oxidation Ditch Oxidation ditch is an extended aeration activated sludge process. An oxidation ditch is a large holding tank in a continuous…
Sequential Batch Reactor (SBR)
The Sequential Batch Reactor (SBR) is a variation of the ASP. As a fill and draw or batch process, all biological water treatment phases…
Advantages and disadvantage of aeration system
Advantages of extended Aeration System: Plants are easy to operate, as the management of operation is for a maximum of two or three hours…
Mechanical Aerator
Type of Mechanical Aerators Mechanical aerators are of two general types; surface aerators and turbine aerators. Surface aerators consist of submerged or partially submerged…
AERATION
Aeration serves three important functions : Mixing the returned sludge with effluent from primary treatment, Keeping the activated sludge in suspension, and Supplying the…