Home

Person

Christian Ludwig

About
Privacy
Disclaimer

Graph Chatbot

Related publications (136)

Real-Time Detection of Aerosol Metals Using Online Extractive Electrospray Ionization Mass Spectrometry

Christian Ludwig, Mohamed Tarik, Houssni Lamkaddam

Metal emissions are of major environmental and practical concern because of their highly toxic effects on human health and ecosystems. Current technologies available in the market for their detection are typically limited by a time resolution of 1 h or lon ...

AMER CHEMICAL SOC2020

Inside Back Cover

Christian Ludwig, Barbara Lothenbach, Sonya Barzgar, Alessio Di Giacomo, Mohamed Tarik

2020

Evaporation of Metals during the Thermal Treatment of Oxide Nanomaterials in Cellulose-Based Matrices

Christian Ludwig, Mohamed Tarik

Like conventional material products, waste is the last stage of the life cycle of engineered nanomaterials, which are then incinerated or stabilized before disposal. However, because of their special physical characteristics, the fate of the thermally trea ...

2020

A novel proposition for a citrate-modified photo-Fenton process against bacterial contamination of microalgae cultures

César Pulgarin, Christian Ludwig, Adrian Pulgarin, Stefanos Giannakis, Dominik Refardt

This study reports the first attempt of a citrate-modified photo-Fenton (PF) application at near-neutral pH (7.5–8.5, tap water) to disinfect Escherichia coli (as model bacterium), in Chlorella vulgaris cultures. The conditions are aimed towards bacterial ...

2020

A combined hydrothermal gasification - solid oxide fuel cell system for sustainable production of algal biomass and energy

Jan Van Herle, François Maréchal, Christian Ludwig, Hossein Madi, Eya Nicodeme, Shivom Sharma

Hydrothermal gasification (HTG) is a promising technology that allows the recovery of nutrients from wet biomass with simultaneous production of an energy-rich gas. In this work, wastewater effluent (leachate) obtained from a composter sanitary system oper ...

2019

Visualization of supercritical water pseudo-boiling at Widom line crossover

Andrea Testino, Christian Ludwig

Supercritical water is a green solvent used in many technological applications including materials synthesis, nuclear engineering, bioenergy, or waste treatment and it occurs in nature. Despite its relevance in natural systems and technical applications, t ...

Nature Research2019

Supercritical water anomalies in the vicinity of the Widom line

Christian Ludwig

Supercritical water is used in a variety of chemical and industrial applications. As a consequence, a detailed knowledge of the structure-properties correlations is of uttermost importance. Although supercritical water was considered as a homogeneous fluid ...

Nature Research2019

Thermophilic cyanobacteria Leptolyngbya sp

Christian Ludwig

Leptolyngbya sp. INSTML01 16S ribosomal RNA gene, partial sequence GenBank: MG753795.1 ...

2018

On the mesoscale mechanism of synthetic calcium–silicate–hydrate precipitation: a population balance modeling approach

Paul Bowen, Karen Scrivener, Andrea Testino, Christian Ludwig, Abhishek Kumar, Mohammad Reza Andalibi, Bhuvanesh Srinivasan

Royal Society of Chemistry2018

Formation and transformation of calcium phosphate phases under biologically relevant conditions: Experiments and modelling

Andrea Testino, Christian Ludwig, Agnese Carino

2018

Fate and reuse of nitrogen-containing organics from the hydrothermal conversion of algal biomass

Christian Ludwig, Gaël Peng, Mariluz Bagnoud, Frédéric Vogel, Eya Nicodeme

2018

Emissions of Secondary Formed ZnO Nano-Objects from the Combustion of Impregnated Wood. An Online Size-Resolved Elemental Investigation

Christian Ludwig, Debora Foppiano, Mohamed Tarik

2018

Combustion generated nanomaterials: online characterization via an ICP-MS based technique. Part I: calibration strategy with a TGA

Christian Ludwig, Debora Foppiano, Mohamed Tarik

2018

Combustion generated nanomaterials: online characterization via an ICP-MS based technique. Part II: resolving power for heterogeneous matrices

Christian Ludwig, Debora Foppiano, Mohamed Tarik

2018

The impact of sorbent geometry on the sulphur adsorption under supercritical water conditions: a numerical study

Andrea Testino, Christian Ludwig

A numerical model to show the impact of the adsorption bed geometry on the desulfurization process of wet biomass under supercritical water (SCW) gasification process has been developed. Three different geometries, straight channels (pipe), sharp-edged cha ...

Springer Heidelberg2017

Catalytic supercritical water gasification: Interaction of sulfur with ZnO and the ruthenium catalyst

Christian Ludwig, Gaël Peng, Frédéric Vogel

Continuous catalytic supercritical water gasification (CSCWG; 400 degrees C, 28 MPa) of microalgal biomass (Chlorella vulgaris) was carried out at the microalgae production site of ZHAW in Wadenswil (Switzerland) non-stop over a period of 100 h. Characteri ...

Elsevier2017

Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass

Jean-Paul Schwitzguebel, Christof Holliger, Christian Ludwig, Shivom Sharma, Dominik Refardt

A combined process for carotenoids extraction and efficient bioenergy recovery from the wet microalgae biomass is proposed. High added-value products could thus be extracted prior a hydrothermal gasification of the algal biomass into synthetic natural gas. ...

2017

Adsorption of thiophene by activated carbon: A global sensitivity analysis

Christian Ludwig

The removal of sulfur compounds in biomass gasification processes is crucial to protect downstream equipment. While conventional sorbent materials can retain H2S, many fail to capture heterocyclic sulfur compounds such as thiophene (C4H4S). This work explo ...

Elsevier Sci Ltd2017

Thermodynamic-Kinetic Precipitation Modeling. A Case Study: The Amorphous Calcium Carbonate (ACC) Precipitation Pathway Unravelled

Paul Bowen, Andrea Testino, Christian Ludwig, Frank Pilger, Agnese Carino, Mohammad Reza Andalibi

Nine accurate experimental data sets on amorphous calcium carbonate (ACC) formation in dilute solution were collected varying temperature and pH. The entire precipitation process is described using a complete thermodynamic-kinetic model. The thermodynamic ...

American Chemical Society2017

Iron phosphate nanoparticles for food fortification: Biological effects in rats and human cell lines

Christian Ludwig, Mohamed Tarik

Nanotechnology offers new opportunities for providing health benefits in foods. Food fortification with iron phosphate nanoparticles (FePO4 NPs) is a promising new approach to reducing iron deficiency because FePO4 NPs combine high bioavailability with sup ...

Informa Healthcare2017

Page 3 of 7