Personne

David Hunkeler

Publications associées (27)

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LCC - The economic pillar of sustainability: Methodology and application to wastewater treatment

David Hunkeler

Industrial applications of supply chain cost management, along with life cycle costing of goods and services, are increasing. Several industrial sectors, in particular the automotive, electronics, and primary materials, have engaged in programs to coordina ...

2003

A high mol. wt. water sol. acrylamide based polymer having improved flocculating properties is provided. The polymer is prepd. by a process, in which a small quantity of a chain branching agent such as methylenebisacrylamide is added to the polymn. reactio ...

2003

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To date, encapsulated grafts have usually been implanted in the peritoneal cavity. This site is, however, not ideal, mainly because of its low blood supply. We have investigated the feasibility of intra-portal injection of (400 microm) microcapsules in the ...

2003

A high molecular weight water soluble graft copolymer having improved flocculating properties is provided. The backbone chain is a heteropolysaccharide comprising amino groups, in particular chitosan, grafted with one or more monoethylenically unsaturated ...

2002

A high mol. wt. water sol. acrylamide based polymer having improved flocculating and dewatering properties is provided. The polymer is prepd. by a process in which a small quantity of a chain branching agent is added to the polymn. reaction mixt. continuou ...

(Ecole Polytechnique Federale De Lausanne (Epfl), Switz.).2002

A process for prepg. a water sol. polymer comprises: providing a polymn. reaction mixt. comprising one or more polymerizable ethylenically unsatd. monomers; polymg. the ethylenically unsatd. monomers; and adding to the reaction mixt. during polymn. one or ...

(Ecole Polytechnique Federale De Lausanne (EPFL), Switz.).2002

The large-scale prodn. of microcapsules with defined membrane thickness and permeabilities, both decoupled from the mech. resistance, is demonstrated. Specifically, a novel app., which controls the downstream part of the microencapsulation process has been ...

2002

Polyelectrolyte complex membrane formation has been studied, online, using the synthetic boundary technique of an Optima XL-I anal. ultracentrifuge. This recent method, established by the first author, has now been evaluated concerning its sensitivity to m ...

2002

Study of polyion counterion interaction by electrochemical methods

Jutta Christine Wandrey, David Hunkeler

A review with refs. concerning study of polyion counterion interaction by electrochem. methods is presented. [on SciFinder (R)] ...

Stevenson Ranch, Calif.2002

Methods are provided for producing microcapsules based on two oppositely charged polymers, in particular to optimise the permeability and mechanical stability of microcapsules. The capsules are formed by introducing liquid droplets from an aqueous solution ...

2001