PR 00310: verschil tussen versies

Geen bewerkingssamenvatting
Geen bewerkingssamenvatting
Regel 18: Regel 18:
Upon comparing myself to when I first started at DOW, I can see that I have gained important professional qualities which will be incredibly useful in the future. Students from UGent and TU Delft, Evides, lecturers from the HZ, and companies in the construction industry were all involved with this project created a very dynamic working environment. I was able to realise the importance of what I was doing and the responsibility that I had, and could then find a way to support the team whilst gaining a great deal myself. I am thankful for the opportunity.
Upon comparing myself to when I first started at DOW, I can see that I have gained important professional qualities which will be incredibly useful in the future. Students from UGent and TU Delft, Evides, lecturers from the HZ, and companies in the construction industry were all involved with this project created a very dynamic working environment. I was able to realise the importance of what I was doing and the responsibility that I had, and could then find a way to support the team whilst gaining a great deal myself. I am thankful for the opportunity.
[[Bestand:Louis Johnston.jpg|gecentreerd|miniatuur|500x500px|Setting up the pilot installation]]
[[Bestand:Louis Johnston.jpg|gecentreerd|miniatuur|500x500px|Setting up the pilot installation]]
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Regel 28: Regel 27:
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|Contact person=Gebruiker:Mireille martens
|Contact person=Gebruiker:Mireille martens
|Stakeholder=STKH 00050,Evides Industriewater B.V.
|Stakeholder=STKH 00050,
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Versie van 6 mei 2020 14:55

The Northern Wetland in summer

Dow, Evides and HZ University of Applied Sciences are working on a TKI subsidized project aiming to investigate how a combination of wetlands as pre-treatment and desalination processes can effectively remove micro-pollutants, nutrients and salinity from wastewater treatment plant effluent. The hypothesis is that wastewater treatment plant effluent is one of the most difficult streams to treat for removal of micro-pollutants and nutrients, so if it can be achieved on this stream then it can also be applied to other streams such as (brackish) surface water. It is believed that the micro-pollutants will be adsorbed in the root zone of the wetland vegetation and the nutrients will be taken up by the bacteria living on the roots of the plants, meaning that the remaining impurities such as salts are removed with a combination of ultrafiltration (UF), ion exchange (IX) and reverse osmosis (RO).

Research on the wetlands alone is carried out independently from summer 2019 to summer 2020. Research on the “brackish water line”; namely the treatment train consisting of ultrafiltration, ion exchange and reverse osmosis in sequence, began in January 2020 and will run until summer 2020 when the wetlands will be connected to the brackish water line as a pre-treatment step. A polishing step such as a mixed bed which would be needed to achieve demi water quality is out of the scope.

The influent water used in the research consists of effluent from a local Membrane Bio Reactor (MBR) and effluent from an industrial wastewater treatment plant (Biox). These influents will be tested separately and also as a mixed stream, with and without wetland treatment.

Bestand:Wetland construction.png
Wetlands North and South under construction

Student Experiences

Louis Johnston: Aquatic Eco-Technology

As part of my 3rd year studying Aquatic Eco-Technology B.Sc. at the HZ University of Applied Sciences, I was offered an internship at DOW Benelux on a new pilot project looking to reduce the company’s reliance on fresh water taken from the Biesbosch. I applied for the internship because I wanted to gain more of an insight into DOW’s operations as a global company and sustainability activity. Furthermore, I wanted to establish how such a global company acts on its sustainability goals and how easily environmental issues can be made economically viable. 

The pilot project at DOW explores the reduction of the company’s reliance on Biesbosch water (currently at 20%) on a pilot scale, with the goal of running a full scale system once optimization of the treatment steps have been fully explored. The company objective is to reuse 100% of used water by 2025, with a constructed wetland as the first pre-treatment step.

My role between September 2019 and January 2020 consisted of optimizing and maintaining the wetland before its connection to further pre-treatment pilots in June 2020. Over 4 months, I encountered troubleshooting difficulties, carried out dissolved oxygen tests, tracer tests, and performed daily grab sampling, comparing the COD and NO3 with the analyser results to test reliability becoming an important task. I also monitored the dissolved oxygen, temperature, pH, flow, and total suspended solids of the wetland, reporting weekly and monthly to the larger team.

Upon comparing myself to when I first started at DOW, I can see that I have gained important professional qualities which will be incredibly useful in the future. Students from UGent and TU Delft, Evides, lecturers from the HZ, and companies in the construction industry were all involved with this project created a very dynamic working environment. I was able to realise the importance of what I was doing and the responsibility that I had, and could then find a way to support the team whilst gaining a great deal myself. I am thankful for the opportunity.

Setting up the pilot installation































Referenties


Onderwerpen

Subprojecten

ProjectStartdatumEinddatumSamenvatting
Student Assignment- Dow-Evides Wetland Study1 september 201931 januari 2020Treatment of industrial wastewater effluent via constructed wetland and desalination; investigating the fate of polyols.

Deelnemers

DeelnemerRol
Emma McAteerProject member
Hans CapponProject leader
Mireille MartensProject leader
Niels GrootProject member

Bronnen


Bronnen gemaakt op deze pagina

 Pagina naamTitelAuteur(s)Datum
Abstract WETPOL Rietland.pdfBestand:Abstract WETPOL Rietland.pdfWETPOL abstract RietlandDion van Oirschotjuni 2, 2021
Abstract WETPOL UGent 1.pdfBestand:Abstract WETPOL UGent 1.pdfWETPOL UGent 1Hafiz Kahnjuni 2, 2021
Abstract WETPOL UGent 2.pdfBestand:Abstract WETPOL UGent 2.pdfWETPOL UGent 2Hafiz Kahnjuni 2, 2021
Dow Tnz - strategy and wetland research - full abstract extended final.pdfBestand:Dow Tnz - strategy and wetland research - full abstract extended final.pdfTKI Dow strategy and wetland researchNiels Grootjanuari 18, 2020
Groot - Keynote Industrial Water 18-Nov-2020 final.pdfBestand:Groot - Keynote Industrial Water 18-Nov-2020 final.pdfTKI Dow wetland keynote 2020Niels Grootnovember 18, 2020
Report Wetland performance 2019-2021.pdfBestand:Report Wetland performance 2019-2021.pdfWetland performance 2019-2021M. Martens and L. Hamelinkjanuari 27, 2022
Resource Hyperlink 00739Resource Hyperlink 00739https://www.tkideltatechnologie.nl/project/hzu01-wetlands-als-voorzuivering-voor-milde-ontzilting/TKI Deltatechnologieapril 22, 2020
WetlandsHybridDesalinationDowTerneuzen.pdfBestand:WetlandsHybridDesalinationDowTerneuzen.pdfFinal Report EvidesEvides Industriewaternovember 16, 2021

Alle bronnen voor dit project

 Pagina naamTitelAuteur(s)Datum
Abstract WETPOL Rietland.pdfBestand:Abstract WETPOL Rietland.pdfWETPOL abstract RietlandDion van Oirschotjuni 2, 2021
Abstract WETPOL UGent 1.pdfBestand:Abstract WETPOL UGent 1.pdfWETPOL UGent 1Hafiz Kahnjuni 2, 2021
Abstract WETPOL UGent 2.pdfBestand:Abstract WETPOL UGent 2.pdfWETPOL UGent 2Hafiz Kahnjuni 2, 2021
Dow Tnz - strategy and wetland research - full abstract extended final.pdfBestand:Dow Tnz - strategy and wetland research - full abstract extended final.pdfTKI Dow strategy and wetland researchNiels Grootjanuari 18, 2020
Groot - Keynote Industrial Water 18-Nov-2020 final.pdfBestand:Groot - Keynote Industrial Water 18-Nov-2020 final.pdfTKI Dow wetland keynote 2020Niels Grootnovember 18, 2020
Report Wetland performance 2019-2021.pdfBestand:Report Wetland performance 2019-2021.pdfWetland performance 2019-2021M. Martens and L. Hamelinkjanuari 27, 2022
Resource Hyperlink 00739Resource Hyperlink 00739https://www.tkideltatechnologie.nl/project/hzu01-wetlands-als-voorzuivering-voor-milde-ontzilting/TKI Deltatechnologieapril 22, 2020
WetlandsHybridDesalinationDowTerneuzen.pdfBestand:WetlandsHybridDesalinationDowTerneuzen.pdfFinal Report EvidesEvides Industriewaternovember 16, 2021