International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Chlorine Dose Determination in Water Distribution System of Jabalpur City using EPANET Anant Pandey1, Prof. R.K Bhatia2, Dr. Shailza Verma3 1M.E
scholar, Jabalpur Engineering College, Jabalpur(M.P) Professor, Dept. Of Civil Engineering, Jabalpur Engineering College, Jabalpur(M.P) 3 Assistant Professor, Dept. Of Civil Engineering, Jabalpur Engineering College, Jabalpur(M.P) 2Associate
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Abstract: The purpose of this study is to determine free
pressure, with acceptable quality in terms of flavour, odour,
residual chlorine in water distribution system of Jabalpur
appearance and sanitary security.
city
using
EPANET
software.
Jabalpur
Municipal
Corporation has provide hydraulic data which is used in the present work. For finding out the on-site free residual chlorine in the system chloroscope is used. Total 540 observed readings are taken on-field using chloroscope. By comparing the observed readings with predicted values from EPANET by trial and error method The chlorine decay coefficients are found. This type of study is useful in understanding the movement of foreign particles in the water distribution system, to optimise the chlorine dosage at the water treatment plant and water storing facilities, to maintain limiting 0.2 mg/L of residual chlorine throughout the system.
Preserving the water quality throughout the distribution system is, therefore, one of the most challenging technological issues for suppliers. Therefore, source concentration must be large enough to maintain adequate residual free chlorine as minimum 0.2 mg/L (Drinking Water Specification IS: 10500, 2012).
Chlorine disinfection
presents the advantages of efficiency and durability. To guarantee the water supply system’s disinfection, we need a residual
concentration
disinfectant
to
prevent
recontamination by pathogenic or indicator microorganisms, which can originate in the biofilm formed inside the system, as well as in negative pressure areas. There is a problem when water distribution systems have considerable proportions. Chlorine residual concentration disappears
INTRODUCTION
along the system. Knowing the aspects behind chlorine Water quality is a prime concern in the world. Many transmittable diseases are waterborne. Water distribution networks serve many purposes in addition to the provision of water for human consumption, which often accounts for less than 2% of the total volume supplied.
decay is in order if we are to develop a strategy capable of disinfecting a water supply system and, at the same time, preserving water quality until the point of use, without using more disinfectant than necessary. Typically, chlorine is added near the final stages of drinking
People in rural areas obtained water from unprotected
water treatment plants to disinfect. A certain residual
ponds or tanks, wells, cisterns and sometimes streams and
amount is added to disinfect against any pathogens found in
rivers. Mostly this water is unsafe for consumption.
the inside walls of the distribution system piping. This
Consequently, the populations suffer from frequent
residual chlorine is consumed on its journey through the
epidemics.
piping system and the chlorine concentration should be at
The objective of any water distribution system is to make
low concentrations at the point of consumption.. Computer-
water available to the consumer in proper quantity and
based mathematical models that able to predict the time history and the spatial distribution of constituents in water
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