A computational model for preliminary studies of ocean outfalls

Abstract

Sewage disposal into the sea by means of submarine outfalls is a common practice in coastal cities, In this paper a computational model for the preliminary design of those outfalls is presented. Firstly, the model enables the definition of the general characteristics of the diffusor and the evaluation of the length of the outfall which is necessary in order to achieve the required quality standards. That length depends on the treatment provided on land. Cost functions both for outfalls and treatment plants are also included in the model, allowing the economic comparison of several alternatives. Model application is illustrated by means of an example.