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Predictive Chlorine Dosing: A New Paradigm
Author(s) -
Johnson P.,
Graham N. J. D.,
Wilson M.
Publication year - 1997
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1997.tb01374.x
Subject(s) - chlorine , dosing , effluent , water treatment , potable water , residual , environmental science , chemistry , computer science , environmental engineering , algorithm , organic chemistry
Disinfection by chlorine is common practice in potable water treatment. The most frequently used dose control method is to inject an overdose of chlorine at the inlet to the contact tank and adjust to the desired residual chlorine level in the effluent stream. However, this method of control may not be optimal. The advent of reliable predictions of retention time distributions and the widespread use of programmable logic controllers, coupled with a greater understanding of chlorine disinfection kinetics, offers the potential for more efficient chlorine dosing algorithms. This paper describes one possible algorithm, based on theoretical models, for predictive chlorine dosing.