Research team

Ecosystem Management

Quantification and characterization of the plastic flux in the Scheldt, with a view to an efficient remediation of this waste problem. 01/02/2018 - 31/01/2022

Abstract

his research initially aims to quantify the plastic flux on the scale of a complete basin, from the smaller tributaries, effluents from water purification stations, docks and canals to the estuary and the sea. Where are the largest sources of plastic waste? What is the residence time of this waste? Are there sinks, zones with long retention of plastic waste in the river system? Quantification of the plastic flux through the entire continuum from the basin to the mouth is essential for the elaboration of an efficient remediation strategy. This study is limited to the macroplastics. After all, relatively realistic removal strategies can still be designed for this fraction, the ultimate goal of this project. In addition, a large part of the microplastics is caused by disintegration of macroplastics. By macroplastics we mean pieces of plastic such as bottles, plastic bags, ropes, .... Plastic pellets will also receive extra attention, since these are sometimes prominently present in the water and on the bank in the Scheldt and the port area. The second objective of this research project is to look for an efficient remediation. Where can you intervene, and how? This project does not aim to develop technical constructions itself, but the effect of existing technologies can be estimated. For example: What effect does a limitation of overflow on the total plastic flux to the North Sea have? Which fraction can be caught with a floating position in the port? The Scheldt basin is selected as a case. To answer the research questions, a monitoring network is developed. Plastic waste is collected at dams, locks, water purification plants, etc. In this way, plastic fluxes from sub-basins, docks, ... can be calculated and an estimate is made of the total flux towards the estuary. In the estuary, the stock is determined by plastic (by means of a deviation) and point measurements (eg cooling water intake points) are used to estimate the flux.

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Research team(s)

NI De Blankaart: monitoring of the fish pits of Kempynck - abiotic and biotic situation 5 years after completion of the work. 08/03/2016 - 07/03/2017

Abstract

The study aims at capturing the biotic (phytobenthos, zooplankton, phytoplankton and the vegetation) and abiotic (pond morphology and water quality) situation of the fish pits of Kempynck approx. 5 years after the execution of the works (the largest works have been carried out in the autumn of 2009, but a number of important adaptation works were only carried out in 2011). To this end, the contractor will carry out a number of inventories in each of the 7 wells. In addition, these results are compared with the initial situation and it is checked whether the desired developments as a result of the design measures occur and summarized recommendations for further management of the fish pits.

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Determining the biological condition of the Flemish polder ditches: quantification of a biological evaluation tool based on pinpoint research 01/02/2015 - 30/11/2015

Abstract

This project represents a formal research agreement between UA and on the other hand the client. UA provides the client research results mentioned in the title of the project under the conditions as stipulated in this contract.

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ANPHEYCO-SEINE: Analyse du fonctionnement hydrologique, morphologique, sédimentaire et écologique (en vue d'une recherche de pistes de restauration globale) de l'estuaire de la Seine. 01/01/2015 - 30/06/2017

Abstract

This project represents a formal research agreement between UA and on the other hand the client. UA provides the client research results mentioned in the title of the project under the conditions as stipulated in this contract.

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Determination of the maximum ecological potential /sound ecological potential for artificial and/or heavily modified Flemish water bodies - partim Eisden coalmine. 01/02/2014 - 30/11/2014

Abstract

This project represents a formal research agreement between UA and on the other hand VMM. UA provides VMM research results mentioned in the title of the project under the conditions as stipulated in this contract.

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Environmental assessment and management options for the Abu Nakhla sewage pond. 10/11/2013 - 10/05/2016

Abstract

The goal of this study is to make an evaluation of the current ecological status as well as the maximal ecological potential of the Abu Nakhla sewage pond. The maximal ecological potential of the lagoon is the ecological status that can be achieved given the current and future uses of the systems.

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