Coupled Hydrodynamic-Water Quality Model for Pollution Control Scenarios in El-Burullus Lake (Nile Delta, Egypt)

Eladawy, Ahmed; Negm, Abdelazim; Saavedra, Oliver; Nadaoka, Kazuo; Elshinnawy, I. A.

doi:10.3844/ajessp.2014.546.565

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…Then a simplified box model was applied to investigate the water exchanges between lagoons and sea under various scenarios. Two coastal lagoons of the Nile delta, El‐Burullus Lake (El‐Adawy et al, ), and Manzala Lake (Rasmussen et al, ) were investigated by means of a complete hydrodynamic and ecological model, to improve the water quality of the lagoons affected by strong anthropic pressure, mainly coming from agriculture. Nevertheless, in both cases no interaction with coastal currents or the hydrodynamics in the sea have been studied.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamics of the Po River‐Delta‐Sea System

et al. 2018

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In this study we investigated the hydrodynamics and the interaction between riverine and marine waters in the Po River-Delta-Sea (RDS) system (Italy). Through the application of an unstructured 3D numerical model to a domain comprising the Po river branches, seven coastal lagoons and the shelf sea, many of the hydrodispersive phenomena evolving from the interaction of the different water bodies of the RDS system were described. The model was successfully calibrated and validated for water levels, fluxes at the inlets and at the river branches, and water temperature and salinity observations. The use of such a comprehensive approach allows the characterization of the general hydrodynamics of all the components of the Po RDS system, of the water exchange between different water bodies as well as the Po river discharge distribution among all branches. The analysis of calculated coastal current patterns in the prodelta of two different years and during a flood event confirms that the Po River is the main driver of the baroclinic coastal sea circulation. However, when strong winds occur (Sirocco and Bora), the surficial circulation of the shelf area is significantly modified. Generally, the lagoons of the Po RDS system can be considered hydrodynamically active since their tidal prisms represent a relevant fraction of each lagoon's volume. The natural consequence is that the lagoons show an active flushing with water renewal times in the order of few days. The hydrodynamics is mainly forced by the tide and is locally enhanced by riverine inputs and wind. Where freshwater inputs are significant, they are responsible of the lagoons salinity patterns that show high spatial gradients (not all the lagoons are well mixed) and temporal variability. The variability of the freshwater discharges and the complex morphology of the Po RDS allows the presence of both marine and riverine environments. describe the transport of nutrient from the catchment basin to the sea (Rasmussen et al., 2002), then Cerralbo et al. (2014) investigated the tidal transformation in Alfacs Bay (southern Ebro Delta). In Greece, MAICU ET AL.Key Points: • The application of a 3-D shallow water equation hydrodynamic model simulated the circulation, freshwater mixing, and residence time in the Po River-Delta-Sea system • The hydrodynamic characterization of the different water bodies, their mutual interaction, and mixing properties were studied • The spatial and temporal variability of the renewal times and flushing properties of the lagoons were investigated, as like the main natural factors driving them

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Section: Introductionmentioning

confidence: 99%

Hydrodynamics of the Po River‐Delta‐Sea System

et al. 2018

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“…Moreover, groundwater in the northern half of the governorate is characterized by high salinity levels [37][38][39]. However, a decline in the salinity level was reported in Lake Burullus as a result of receiving a total quantity of 3904 million m 3 /year agricultural drainage and industrial and domestic wastewater through nine inflows (eight drains and one canal named "Brimbal Canal") [40,41]. The decline in salinity level caused a reduction in the marine fish population (e.g., Liza ramada percentage by weight decreased from 16% to less than 1.8% from 1973 to 2003), increase in freshwater species (e.g., Tilapia percentage by weight increased from 81 to 98.2%), and deterioration in the aquatic ecosystem [41,42].…”

Section: Introductionmentioning

confidence: 99%

“…However, a decline in the salinity level was reported in Lake Burullus as a result of receiving a total quantity of 3904 million m 3 /year agricultural drainage and industrial and domestic wastewater through nine inflows (eight drains and one canal named "Brimbal Canal") [40,41]. The decline in salinity level caused a reduction in the marine fish population (e.g., Liza ramada percentage by weight decreased from 16% to less than 1.8% from 1973 to 2003), increase in freshwater species (e.g., Tilapia percentage by weight increased from 81 to 98.2%), and deterioration in the aquatic ecosystem [41,42]. High concentrations of total suspended solids (TSS) were reported in the lake, indicating high levels of pollution by non-organic and organic matter found in industrial and agricultural waste [41].…”

Section: Introductionmentioning

confidence: 99%

“…The decline in salinity level caused a reduction in the marine fish population (e.g., Liza ramada percentage by weight decreased from 16% to less than 1.8% from 1973 to 2003), increase in freshwater species (e.g., Tilapia percentage by weight increased from 81 to 98.2%), and deterioration in the aquatic ecosystem [41,42]. High concentrations of total suspended solids (TSS) were reported in the lake, indicating high levels of pollution by non-organic and organic matter found in industrial and agricultural waste [41]. Lake Burullus also suffers from dense growth of aquatic plants, which is mainly due to nutrients' accumulation [43,44].…”

Section: Introductionmentioning

confidence: 99%

“…Lake Burullus also suffers from dense growth of aquatic plants, which is mainly due to nutrients' accumulation [43,44]. Another challenge is sediment accumulation around plant roots, which affects water circulation [41].…”

Section: Introductionmentioning

confidence: 99%

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Rapid Assessment Method for Evaluation of the Weighted Contribution of Anthropogenic Pollution: A Case Study of Lake Burullus, Egypt

Moussa

Mostafa

2021

Water

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This paper proposes a pragmatic approach for rapid assessment of the weighted contribution of the main waste streams contributing to pollution of surface water bodies. A case study was conducted on Lake Burullus in Egypt. The lake suffers from pollution due to many human-based activities around the lake, such as domestic, industrial, agriculture, fish farming, and solid wastes. The weighted contribution of these activities was assessed in terms of chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP). The results showed that the highest organic load is due to the domestic wastewater pollution component (63.2% of COD load), followed by fish aquaculture (35.4%). The highest TN (43.9%) and TP (58.3%) pollutant loads to Lake Burullus are due to the agricultural pollution component, followed by fish aquaculture with pollutant loads of 28.5% and 25.3%, respectively. The industrial wastewater pollution component has a very small effect on the pollution of Lake Burullus. The assessment of this study will help identify and magnify the key polluters and thus guide the decision-makers to prioritize investment planning for depollution intervention projects. For example, if the target is to reduce COD loads, investments must be directed toward the rehabilitation and expansion of wastewater treatment plants (WWTPs).

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