Optimization and Research on Environmental Effect with Sewage Diffuser in DA Ya Bay

摘要

The sewage diffuser is an environmental material for protecting marine environment. It plays an important role in port engineering. Its effect under deep water was carried out between different diffuser design parameters based on the hydraulic model test, and DA Ya Bay sewage marine disposal project was taken as an example. In DA Ya Bay project, jet angle was controlled to be 0 degree, azimuth angle was controlled to be 0 degree, and the length is 135meters. It not only can ensure that sewage fully diluted mixed, also can avoid the premature convergence and sewage lifting. It is feasible for selecting large angle nozzle under deep water and there are some technical bases have been provided for other sewage marine disposal project.