Publications de Michèle Bernadette Heeb

Formation and reactivity of inorganic and organic chloramines and bromamines during oxidative water treatment

Urs von Gunten, Jeremy Samuel Arey, Daniela Trogolo, Michèle Bernadette Heeb

The formation and further reactions of halamines during oxidative water treatment can be relevant for water quality. In this study, we investigated the formation and reactivity of several inorganic and organic halamines (monochloramine, N-chloromethylamine ...

Elsevier2017

Computational Chemistry Investigation Of The Bromide-Catalyzed Formation Of Ndma From N,N-Dimethylsulfamide During Ozonation

Jeremy Samuel Arey, Urs von Gunten, Daniela Trogolo, Brijesh Kumar Mishra, Michèle Bernadette Heeb

Royal Soc Chemistry2016

The Role of Bromide in Oxidative Water Treatment

Michèle Bernadette Heeb

Bromide (Br-) levels in fresh waters range from a few ¿gL-1 to several mgL-1. In seawater its concentration is about 67 mgL-1. The goal of this thesis is to assess the fate of bromide during oxidative water treatment and to explore its influence on these t ...

EPFL2016

Molecular mechanism of NDMA formation from N,N-dimethylsulfamide during ozonation: Quantum chemical insights into a bromide-catalyzed pathway

Urs von Gunten, Jeremy Samuel Arey, Daniela Trogolo, Michèle Bernadette Heeb, Brijesh Kumar Mishra

During ozonation of drinking water, the fungicide metabolite NN-dimethyIsulfamide (DMS) can be transformed into a highly toxic product, N-nitrosodimethylamine (NDMA). We used quantum chemical computations and stopped-flow experiments to evaluate a chemical ...

Amer Chemical Soc2015

Strontium hydroxyapatite and strontium carbonate as templates for the precipitation of calcium-phosphates in the absence and presence of fluoride

Janet Gordon Hering, Michèle Bernadette Heeb

The heterogeneous precipitation of calcium phosphates on calcium hydroxyapariLe (Ca-10(PO4)(4)OH)(2) or HAP) in the presence arid absence of fluoride is important in the formation of bone and teeth, protection against tooth decay, dental and skeletal fluor ...

Elsevier Science Bv2014

Oxidative treatment of bromide-containing waters: Formation of bromine and its reactions with inorganic and organic compounds - A critical review

Urs von Gunten, Michèle Bernadette Heeb, Saskia Gisela Zimmermann-Steffens

Bromide (Br-) is present in all water sources at concentrations ranging from similar to 10 to >1000 mu g L-1 in fresh waters and about 67 mg L-1 in seawater. During oxidative water treatment bromide is oxidized to hypobromous acid/hypobromite (HOBr/OBr-) a ...

Elsevier2014