Estimation of the effect of the degree of sewage treatment on the status of pollution along the coastline of the Mediterranean Sea using broad scale modelling

Journal of Environmental Management
Anastasios I Stamou, George Kamizoulis

Abstract

A preliminary investigation was performed to estimate the effect of the degree of treatment in Sewage Treatment Plants (STPs) on the status of pollution along the coastlines of the Mediterranean Sea. Data from questionnaires and the literature were collected and processed (a) to identify 18 approximate 1D surface coastal currents, (b) to estimate their prevailing direction and average flow velocity and (c) to estimate the water pollution loads and identify their locations of discharge. Then, a simplified 1D water quality model was formulated and applied for the existing conditions and two hypothetical scenarios: (1) all coastal cities have STPs with secondary treatment and (2) all coastal cities have STPs with tertiary treatment to determine BOD(5), TN and TP concentrations in the 18 surface coastal currents. Calculated concentrations were compared and discussed. A main conclusion is that, to reduce pollution in the Mediterranean Sea measures should be adopted for upgrading the water quality of the rivers discharging into the Mediterranean Sea, along with the construction of STPs for all the coastal cities.

Citations

Jan 24, 2016·Environmental Monitoring and Assessment·J A de-la-Ossa-CarreteroJ L Sánchez-Lizaso
Mar 17, 2010·Journal of Environmental Management·Ali ErturkIzzet Ozturk
Mar 3, 2010·Marine Environmental Research·Ernesto AzzurroVictor Axiak
Dec 17, 2014·Marine Pollution Bulletin·M OurgaudM L Harmelin-Vivien
Sep 25, 2010·Marine Pollution Bulletin·Yoana Del-Pilar-RusoJose Luis Sánchez-Lizaso

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