RAIN FALL
The intensity of rainfall is the rate at which the rain is falling and it is expressed in cm/hr. For example, during a particular…
Category: Sewage Treatment
ESTIMATION OF SEWAGE FLOW AND STORM RUNOFF
SOURCES OF WASTEWATER The wastewater is generated from domestic, industrial and agricultural activities. From domestic sources the wastewaters are generated from toilet known as…
Types & Functions of Waste Stabilization Ponds
WSPs are of Two types; Single pond or Primary facultative pond and Multi-cell pond system. Single Pond or Primary Facultative Lagoon In general, the…
Trickling Water Filters
Trickling Filters in Waste Water Treatment A Trickling water treatment filter (TF), an attached growth system, consists of a fixed bed of highly permeable…
Advertisement
DESIGN ASPECTS OF THE RESERVOIRS
1.Number of Storage Reservoirs Urban water systems should have at least one elevated tank for each of the areas. Two tanks (or a tank…
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…
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…
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.…