Ring Water Distribution System Ring water distribution system or Ring system is another method of the layout of distribution pipes. The ring system is also known as the ‘circular system‘. There are mainly four types of methods used for the distribution of water pipes – Dead end system, Grid Iron System, Ring System, and fourth…
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Characteristics of Sewage The characteristics of sewage can be classified as: Read More: – Factors Affecting The Quantity Of Storm Sewage Physical characteristics of Sewage The following are the physical characteristics of sewage: l) Specific Gravity The specific gravity of sewage is very nearly equal to that of water 2) Colour The fresh sewage has a yellowish or grey…
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Maximum Permissible Concentration of Various Inorganic Elements Present in Potable Water Following are the values of the maximum permissible concentration of various inorganic elements present in potable water as per the World Health Organization (WHO) and Bureau of Indian Standards (BIS). S.No Inorganic Element Maximum Permissible Concentration in Potable Water as per WHO in mg/L…
How to find out the quantity of stormwater run-off in a catchment area? Let’s take a mathematical example. Mathematical Problem: A catchment area of 20 km2 consists of two-thirds rural and one-third urban areas. The rainfall intensity in this area is recorded as 25 mm/hr. Find the quantity of stormwater run-off in the area in…
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Combined Gravity And Pumping System In this system, the treated water is pumped and stored in an elevated reservoir, from where it is supplied to the consumer by the action of gravity. Thus, this method combines pumping as well as gravity flow. This system is fairly reliable. Read more: Function of Storage Reservoir 3…
5 Function Of Storage Reservoir The storage reservoirs are generally provided in the distribution system to store clear treated water before it is distributed to the consumer. The following 5 functions of the storage reservoir are: 1. They help the pump to run at a uniform rate. 2. They provide the facility of storage…
Biochemical Oxygen Demand (B.O.D) The amount of oxygen required to carry out the biological decomposition of dissolved solids in sewage under aerobic conditions at standard temperature is known as biochemical oxygen demand. It indicates the amount of biologically active organic matter present in the sewage. It is generally less than C.O.D. The B.O.D of water…
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