Fri, Sep 14, 2012 1:00 PM – 5:00 PM CDT
Daily Archives: September 7, 2012
Fri, Sep 14, 2012 1:00 PM – 5:00 PM CDT
The 2012 class of Pollution Prevention (P2) interns will present the findings from their 10-week internship working with Kansas industries. Eight interns will present throughout the afternoon, so attendees can feel free to attend as their schedules allow. The presentation will be held on campus in Room 202 of Calvin Hall, but you can also join via webinar by pre-registering. If you would like to attend in person, please contact SBEAP at 800-578-8898 for directions.
This event is open to the public, but may be of special interest to K-State faculty, engineering students, facility engineers, energy engineers, environmental managers, P2 technical assistance providers, and family and friends of the class of 2012.
The K-State P2 intern program is a non-regulatory, summer program designed to link top-level engineering and environmental sciences students with business and industry. Collaborations focus on projects to reduce energy use, emissions and wastes, benefiting the company bottom line and the Kansas environment. Students work with a technical advisor from PPI and a host company to research P2 projects that reduce or eliminate –
- energy use
- air emissions
- hazardous and solid wastes
- water contaminants
Read the full story from Oregon State University.
Engineers at Oregon State University have made a breakthrough in the performance of microbial fuel cells that can produce electricity directly from wastewater, opening the door to a future in which waste treatment plants not only will power themselves, but will sell excess electricity.
The new technology developed at OSU can now produce 10 to 50 more times the electricity, per volume, than most other approaches using microbial fuel cells, and 100 times more electricity than some.
Researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater.
The findings have just been published in Energy and Environmental Science, a professional journal, in work funded by the National Science Foundation.
Citation for full research article: Yanzhen Fan, Sun-Kee Han, and Hong Liu (2012). “Improved performance of CEA microbial fuel cells with increased reactor size.” Energy Environ. Sci., 2012,5, 8273-8280. DOI: 10.1039/C2EE21964F
Abstract: The performance of an over 10 times larger microbial fuel cell (MFC) with double cloth electrode assemblies (CEAs) during 63 days of continuous operation demonstrates that the excellent performance of CEA-MFCs can be further improved during scale-up. With a new separator material and U-shaped current collectors, the larger MFC produced a maximum power density of 4.30 W m−2 at a current density of 16.4 A m−2, corresponding to a volumetric power density of 2.87 kW m−3 at 10.9 kA m−3 for a double CEA-MFC. The high current density led to a high average coulombic efficiency (CE) of 83.5% as well as a high potential COD removal rate of 93.5 kg m−3 d−1. Energy efficiency is estimated in the range of 21–35%, depending on the operating voltage. The low-cost non-woven cloth separator further reduced the anode–cathode spacing and internal resistance, greatly enhancing the power generation. The enhanced self-production of bicarbonate buffer, which can be manipulated by adjusting hydraulic retention time and substrate concentration, also contributed to the improved performance. The results demonstrate the great potential of MFC technology in competing with methanogenic anaerobic digestion for waste-to-electricity and wastewater treatment.
Read the full story in the Orland Sentinel.
Not waiting for Congress to establish a winning defense against a warming planet, professional-sports teams and the owners of their stadiums and arenas — like the nearly new one now used by the Orlando Magic — are making a fast break into “green” construction and other environmentally sustainable practices.
A report released Wednesday by the Natural Resources Defense Council and the Green Sports Alliance declares that professional-sports teams are igniting a cultural revolution by emphasizing green standards for major-league venues that minimize waste as they are built and then consume less power and water once they are open and operating.
The full report, entitled Game Changer: How the Sports Industry is Saving the Environment, compiles case studies of the sports industry’s most prominent and successful greening initiatives.