WebMar 28, 2024 · A water supply scheme transports 10 MLD (Million Litres per Day) water through a 450 mm diameter pipeline for a distance of 2.5 km. A chlorine dose of 3.50 mg/litre is applied at the starting point of the pipeline to attain a certain level of disinfection at the downstream end. WebExample 3.11 – Liquid Chemical Feed Calculation A water treatment plant uses liquid alum for coagulation. At a plant flow rate of 2.0 MGD, an alum dosage of 12.5 mg/l is required. The alum has an active chemical strength of 5.48 lb/gallon. Compute the required alum feed rate in gallons/day.
DW Module 21: Chemical Addition Answer Key
WebNormal chlorine concentrations in scheme drinking water supplies in Western Australia usually range from 0.5 to 1.5 milligrams per litre. Chlorine levels may vary due to the flow rate of the water in the system, your proximity to the water treatment plant and during maintenance periods. WebWe first calculate the number of pounds of PURE chlorine we need, using the "pounds formula:" (3.8 MG)(8.34 lbs/gal)(12.7 mg/L dosage) = 402.5 lbs PURE chlorine We now … sega dreamcast wow roms
GIS-Based Identification of Locations in Water Distribution …
WebThe chlorine dosage for a water system is 2.7mg/L. If the chlorine residual after 30 minutes contact time is found to be .8mg/L, what is the chlorine demand in mg/L A) .9mg/L B) 3.5mg/L C) 1.9mg/L D) 2.1 mg/L C) 1.9mg/L CT stands for: A) Chloroform + THM's B) Chlorobenzene X Trichloroethylene WebA number of factors need to be taken into account when establishing a chlorine dose rate at the treatment plant. Generally, the first and most basic requirement is to achieve a minimum of 0.2 mg/L FACe after 30 … WebThe proposed model considered three fixed physical factors (pipe length per junction, number of fittings per length, and pipe friction factor) and three varying operational aspects (drop in pressure, decrease in flow, and variations in chlorine levels). sega dreamcast wallpaper