Optimization of Sewage Collection Network in Kuwait: Phase II and III

The principal goal of the proposed study is to develop a software package for the optimization of the sewage collection network. This is essentially a constrained optimization problem with nonlinear cost function and linear constraints.
The outcoming software package will have the salient. features to: deal with the network as one entity, consider partial flow conditions, use the most accurate modified Hazen-Williams formula, and consider travel time of wastewater in sever as a criterion to prioritize rehabilitation needs of existing networks to alleviate odor problems.
Initial work has led to encouraging results on the optimization of single sewer design under some restricted assumptions. This proposal deals with extending the single sewer design optimization to allow for nominal standard diameters, retention time, pasping station and force main as well as the handling of complete network design. Moreover, the proposal includes an implementation phase which is undertaken jointly with NHA to apply the developed software for the design of sewer networks in selected NEA areas. The deliverable of the present proposed study will be mainly a tool for optimal planning and design of sewage collection networks. The tool will be validated by comparing the results obtained in a previous conventional engineering design with the optimal design using the tool.