Toward a nonpolluting energy system

Article Abstract:

Advances in fuel cell and photovoltaic technologies promise to bring pollution-free energy sources closer to reality. While cheap fossil fuel and entrenched infrastructure have made it difficult for these innovative technologies to penetrate the market, public policy and increasing research expenditures are working towards the greater adoption of these technologies. In the short- to medium-term, photovoltaic technology is projected to become a major source of electric power. In the longer term, hydrogen will steadily become the nonpolluting alternative to liquid fuels used by motor vehicles and aircraft.

Semiconductor and Related Device Manufacturing, Product information, Solar Cells, Photoelectric cells

---

Rotating ion-exchange system removes perchlorate

Article Abstract:

Calgon Carbon Corp. of Pittsburgh, PA, has developed process for treating drinking water contaminated with small amounts of perchlorate. The method, probably among the first research studies to be marketed, employs an ion-exchange procedure primarily used in displacing nitrate from waste streams. The process also uses a continuously rotating countercurrent system that brings much lesser brine waste, according to Raman Venkatesh, a company senior research engineer. The Calgon technology is yet to be confirmed economical by drinking water services.

Comment:

Has developed process for treating drinking water contaminated with small amounts of perchlorate

Other Measuring and Controlling Device Manufacturing, Water Treatment Analyzers, Water treatment equipment, Water pollution testing equipment, Calgon Corp.

---

Tapping energy from the sediment-water interface

Article Abstract:

A fuel cell prototype used for underwater monitoring applications is described. The fuel cell utilizes a variable load connection of an anode embedded in seafloor sediment to a cathode exposed to seawater. This electrode configuration allows organic detritus in the sediment to be used as fuel and dissolved oxygen in the seawater to be used as an oxidant.

ELECTRONIC & OTHER ELECTRIC EQUIPMENT, Product development, Fuel cells

Similar abstracts:

• Abstracts: A model of innovation systems with links to creative style and psychological type. Innovative activity in Canadian food processing establishments: the importance of engineering practices
• Abstracts: Bagged and dragged: transporting water in enormous bags may not be such a crazy idea. The well-rounded flat speaker
• Abstracts: Why the y is so weird. Children of the gun. Dwarf galaxies & starbursts
• Abstracts: In pursuit of the ultimate lamp. The ultimate white light. Cell communication: the inside story

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.