Concept

Plastic recycling

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Cu–Al Spinel as a Highly Active and Stable Catalyst for the Reverse Water Gas Shift Reaction

Ursula Röthlisberger, Jeremy Luterbacher, Oliver Kröcher, Florent Emmanuel Héroguel, Alimohammad Bahmanpour, Christophe Jean Baranowski

The reverse water gas shift reaction is considered to be a highly attractive catalytic route for CO2 recycling in a future sustainable economy. Copperbased catalysts are commonly used for this reaction due to their high activity and selectivity. However, t ...

2019

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This study aims to demonstrate the robustness of concrete made of limestone calcined clay cement (LC3). Two campaigns were carried out using 375 kg.m(-3) and 500 kg.m(-3) of binder and targeting plastic and self-placing workability, respectively. The concr ...

AMER SOC TESTING MATERIALS2019

A Methodology to Estimate Benefits from WEEE Recycling, Ecodom Case Study

WEEE is Waste Electrical and Electronic Equipment and its proper treatment is one of the challenges Europe is facing, because of economically essential materials recovery and of proper treatment of environmentally critical components they contain (CFC, PCB ...

Paul Scherrer Institute, World Resources Forum2019

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Frustrated Lewis pairs (FLPs) consist of sterically hindered Lewis acids and Lewis bases, which provide high catalytic activity towards non-metal-mediated activation of "inert" small molecules, including CO2 among others. One critical issue of homogeneous ...

2019

Transportable Versus Centralized Recycling Plant: Environmental and Cost Assessment

The purpose of the study is to determine the environmental and economic balance between the collection of wastes and their transport to a centralized recycling plant versus the displacement of a recycling plant near the waste source locations. Two systems ...

Paul Scherrer Institute, World Resources Forum2019

Current phosphorus (P) use in European countries is highly dependent on mineral P imports and not sustainably managed. In order to identify and implement measures for sustainable P management, a comprehensive understanding of national P flows and stocks an ...

2018

Functional composites with damage control and repair

Amaël Maximilien Cohades

Fibre Reinforced Polymer (FRP) composite structures are subjected during service to low energy impacts or unexpected loads, leading to damage. Microcracks are generally first formed in the matrix and can reach up to several hundred microns in thickness. In ...

EPFL2018

Recherche de fragments de plastique dans les sédiments profonds du Léman

Luiz Felippe De Alencastro, Florian Faure

A growing number of studies focusing on microplastics (plastic particles smaller than 5 mm) show this issue affects all environmental matrices and compartments, and suspicions grow as to their toxicity. In this context, the Commission Internationale pour l ...

2017

Grafted semiconductors on PE-films leading to bacterial inactivation: Synthesis, characterization and mechanism

César Pulgarin, Juan Kiwi, Sami Rtimi

This study reports the colloidal preparation FeOx, TiO2 and FeOx-TiO2 grafted on polyethylene (PE) films leading to bacterial inactivation. A fast bacterial inactivation was attained by the FeOx-TiO2 compared to the FeOx-PE film due to the interfacial char ...

Elsevier2017

PUTTING CIRCULAR ECONOMY PRINCIPLES INTO PRACTICE

Circular economies produce virtually no waste, as materials are re-used and recycled continuously. It’s a dramatic shift from the current linear economy in which we take, make, consume and dispose – drawing regularly on natural resources to create products ...

A World Resources Forum Production, PSI2017