ChEnected Posts by Martin Bergstedt

Martin Bergstedt

Martin Bergstedt is an experienced executive, with a Chemical Engineering degree from the University of Minnesota. He first joined Economics Laboratory at their pilot plant, performing process development and plant start-ups. From there he held positions of progressively increasing scope and responsibility at ETD Technology and DuPont Electronics, and then spent ten years in General Manager positions with Aptus (Westinghouse) Environmental and USFilter (Veolia). He worked at U.S. Water Services as Director of Engineering and Project Management, overseeing the design, specification and installation of water treatment systems for 60 new ethanol plants in a three year period, and is currently General Manager, Eastern U.S. at Amazon Environmental. His greatest successes are when taking underperforming or inexperienced organizations and forging a cohesive effort to accomplish the project or profit objectives.

Forward Osmosis Pilot Plant for Seawater Desalination

November 07, 2011. By Martin Bergstedt
Forward osmosis offsets some of the high costs of reverse osmosis, but large-scale systems necessarily introduce one or more additional unit ops to recover the extracted water from the draw solution utilized. Young Kim of the Korea Institue of Machinery and Materials (KIMM) discussed her work on a forward osmosis pilot plant.

Produced Water Treatment with Ceramic Membranes

November 02, 2011. By Martin Bergstedt
The volume and complexity of produced water (PW) generated in the oil and gas extraction industry provides a significant separations and treatment challenge. Because of its source, PW is contaminated with hydrocarbons and inorganic leachates from the rock strata where the well is drilled. Bruce Bishop of Veolia Water presented the results of ceramic membrane systems trials in different process environments.

Moringa Oleifera Seeds for Water Treatment in Water-Stressed Areas

October 31, 2011. By Martin Bergstedt
The challenge of improving water quality in water-stressed areas of the world may have a natural champion in the Moringa oleifera tree. More specifically, a particular protein found in the meal of dried and ground M. oleifera seeds, when adsorbed onto sand, has shown some excellent preliminary results in removing total suspended solids (TSS) and in killing coliform bacteria.

Separate Processing of Hemicellulose and Cellulose to Optimize Ethanol Production from Corn Stover

October 20, 2011. By Martin Bergstedt
One effort to increase cellulosic ethanol production efficiencies using corn stover as feedstock involves a separation of and separate processing of the solid and liquid fractions of pretreated feedstock.

In addition to facilitating an increase in the productivity of ethanol fermentation and recovery, a spit stream process opens up the possibility of diverting the C5 stream to some potentially more lucrative bioproducts.

Using Membrane Reactors for Micro-Cogeneration Systems [On Location]

March 29, 2011. By Martin Bergstedt
Research is underway in The Netherlands to demonstrate a single palladium membrane reactor (600C) technology to reduce the energy use and cost of small-scale, fuel-cell based electrical power generation. The results generated so far were presented by Fausto Gallucci of theDepartment of Chemical Engineering and Chemistry at the University of Technology, Eindhoven, The Netherlands.