Modeling wastewater discharge at the planning stage of a marine outfall system

Abstract

The possibility of marine discharge of a negatively buoyant industrial waste was evaluated by a modeling study using Killworth 3-D, which is the first version of the Modular Ocean Model (MOM). The Model was run with the recorded wind direction and speed on the cruise dates and the circulation patterns for surface and subsurface were found to be similar with the current meter measurements. Model scenarios have been set-up in order to estimate the intensity and direction of the currents in the Nemrut Bay under the condition of wind blowing from a definite direction for a long time. MOM model has been run for four major wind directions, each having duration of 10 days and the behavior of the discharge plume in the worst case has been traced. Also, the behavior of the discharge plume in the real case has been estimated by using the wind data of the region. According to the model results, impact of trace elements that compose the discharge effluent is limited both in time and space. It is concluded that trace elements will leave the Bay in a short time due to the short residence times.

Impact of sewage discharges on coastal water quality of Mumbai, India: present and future scenarios

“…Water quality management requires the monitoring and modelling of coastal water to understand and to predict the behaviour of a coastal system due to the consequences of sewage and wastewater discharges (Esen et al 2012;Menendez et al 2013;Islam et al 2014;Vijay et al 2014;Mishra et al 2015). Water quality models play a critical role in the evaluation of management alternatives prior to project implementation (Kuo et al 2005;Ji 2008;Vijay et al 2010a;Zhou et al 2011;Dunn et al 2014) and provide a basis for economic analysis (Jakobsen et al 2007;Vijay et al 2010b).…”

Understanding the role of ecological indicator use in assessing the effects of desalination plants

“…It is becoming increasingly important, as the effects of single port outfall or multiport diffuser sea outfall of brine discharge through the biosphere are a marine eco-risk [1][2][3][4][5][6][7]. Ecological indicators of metabolic activity are key components of monitoring, evaluating, and biological assessment that are directly or indirectly linked to desalination processes that are important for organism survival.…”

Modeling of coastal water contamination in Fortaleza (Northeastern Brazil)

“…Pathogenic bacteria and viruses discharged into the sea constitute a potential health risk for bathers, especially in densely populated areas. Uncontrolled and excessive waste disposal tend to create unacceptable levels of seawater pollution, compromising local economic activities and the ecological balance of coastal waters (Esen et al, 2011).…”