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…
Category: Sewage Treatment
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…
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AERATION
Aeration serves three important functions : Mixing the returned sludge with effluent from primary treatment, Keeping the activated sludge in suspension, and Supplying the…
ROTATING BIOLOGICAL CONTACTOR
The rotating biological contactor (RBC) has been used in Europe for many years to treat both municipal and industrial waste waters. RBC’s produce a…
TYPES OF TRICKLING FILTERS
The Trickling filters are classified based on hydraulic or organic loading, as low rate trickling filter (LRTF), high rate trickling filter (HRTF) and Roughing…
ADVANTAGES AND DISADVANTAGES OF TRICKLING FILTER
Advantages of Trickling filtration plant Simple and reliable process that is suitable in areas where large tracts of land are not available for a…
SECONDARY TREATMENT
SOLIDS IN SEWAGE The solids present in the sewage are of two types viz., Organic solids, and Inorganic solids. Organic solids are the substances…