Pascal Finkbeiner

Cranfield University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Bruce Jefferson

Cranfield University

Graeme Moore

Scottish Water (United Kingdom)

Peter Jarvis

Cranfield University

Tebogo Tseka

University of South Africa

Anna Ignaszak

University of New Brunswick

Franziska Anschuetz

Friedrich Schiller University Jena

Lueta-Ann de Kock

University of South Africa

Jeremy A. Redman

St. Michael's Hospital

Michael Stelter

Friedrich Schiller University Jena

V. Patriarca

Scottish Water (United Kingdom)

Cooperative Institutions

Friedrich Schiller University Jena

University of South Africa

University of Johannesburg

Scottish Water (United Kingdom)

Jena University Hospital

Cranfield University

Kelda Group (United Kingdom)

Fraunhofer Institute for Ceramic Technologies and Systems

University of New Brunswick

University of Fredericton

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Sonoelectrochemical degradation of the anti-inflammatory drug diclofenac in water

Chemical Engineering Journal (2015)

Pascal Finkbeiner Marcus Franke Franziska Anschuetz Anna Ignaszak Michael Stelter

Diclofenac

Degradation

Luminol

10.1016/j.cej.2015.03.070

Cite

Citations (63)

Understanding the potential for selective natural organic matter removal by ion exchange

Water Research (2018)

Pascal Finkbeiner Jeremy A. Redman V. Patriarca Graeme Moore Bruce Jefferson

Dissolved organic carbon (DOC) removal from a river water source was investigated using ion exchange (IEX), coagulation and membrane filtration. This research linked the variable charge characteristics of the organic compounds present in the source water with removal by IEX and coagulation. The raw water charge density fluctuated considerably (between 5.4 and 10.7 meq mgDOC-1) and controlled removal of the charge loading. Importantly, charge density was not correlated with the organic carbon concentration. The combined IEX and coagulation process reduced the specific DBP-FP (sDBP-FP) of the final water, with values as low as 18 μg mgDOC-1 for both haloacetic acids and trihalomethanes. IEX removed a particular fraction of NOM that 1) enhanced coagulation efficiency, providing increased removal of overall DOC; and 2) enabled coagulation to subsequently remove higher levels of specific components of NOM that have a high DBP-FP. The component of NOM removed by IEX that had a positive impact on coagulation was identified to be charged low molecular weight organic compounds of all hydrophobicity levels, resulting in a reduced specific DBP-FP compared to coagulation alone.

Haloacetic acids

Raw water

Filtration (mathematics)

Natural Organic Matter

Portable water purification

10.1016/j.watres.2018.09.042

Cite

Citations (33)

Interactions between Organic Model Compounds and Ion Exchange Resins

Environmental Science & Technology (2019)

Pascal Finkbeiner Graeme Moore Tebogo Tseka Thabo T.I. Nkambule Lueta-Ann de Kock

Ion exchange (IEX) can successfully remove natural organic matter (NOM) from surface water. However, the removal mechanism is not well understood due to the complexity and variability of NOM in real source waters as well as the influence of multiple parameters on the removal behavior. For example, this includes the physicochemical properties of the NOM and IEX resin, and the presence of competing anions. Model compounds with a range of physical and chemical characteristics were therefore used to determine the mechanisms of NOM removal by IEX resins. Fifteen model compounds were selected to evaluate the influence of hydrophobicity, size, and charge of organic molecules on the removal by ion exchange, both individually and in mixtures. Three different resins, comprising polystyrene and polyacrylic resin of macroporous and gellular structure, showed that charge density (CD) was the most important characteristic that controlled the removal, with CD of >5 mequiv mgDOC-1 resulting in high removal (≥89%). Size exclusion of compounds with high MW (≥8 kDa) was evident. The hydrophobicity of the resin and model compound was particularly important for removal of neutral molecules such as resorcinol, which was best removed by the more hydrophobic polystyrene resin. Relationships were identified that provided explanations of the interactions observed between NOM and IEX resin in real waters.

Polystyrene

Ion-exchange resin

Polyacrylic acid

Resorcinol

Surface charge

10.1021/acs.est.9b02139

Cite

Citations (19)

The combined influence of hydrophobicity, charge and molecular weight on natural organic matter removal by ion exchange and coagulation

Chemosphere (2019)

Pascal Finkbeiner Graeme Moore Ryan Pereira Bruce Jefferson Peter Jarvis

Ion-exchange resin

Natural Organic Matter

Fraction (chemistry)

10.1016/j.chemosphere.2019.124633

Cite

Citations (31)