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A Benders decomposition model for sewer rehabilitation planning for infiltration and inflow planning
Author(s) -
Monsabert Sharon,
Thornton Paul
Publication year - 1997
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143097x125317
Subject(s) - inflow , infiltration (hvac) , wastewater , sanitary sewer , environmental science , environmental engineering , engineering , waste management , civil engineering , geology , materials science , oceanography , composite material
Infiltration and inflow (I/1) to a wastewater treatment plant can contribute significantly to the quantity and cost of domestic wastewater treatment. A known pipe or manhole defect can be repaired in a number of ways. Leaking pipes, for example, can be chemically grouted, lined, or burst/lined or excavated and repaired/replaced. Each repair option for eliminating the infiltration or inflow has a unique cost and efficiency. A general Benders decomposition model was developed to optimize the repair and replacement strategy for a sewer network. The model determines the least cost solution by minimizing the combined wastewater treatment and repair costs. The results of a detailed analysis of an existing sewer are presented.