When looking at sanitation/wastewater treatment and making it economically feasible for more parts of the world, this is very interesting research. Some will say it has roots in the fact that there is “gold” in out crap…
Related links to this research:
…On May 1, a panel of judges awarded the $100,000 National University Clean Energy Business Challenge prize to the Stanford team for its project to convert nitrogen waste into nitrous oxide that is then used for clean power generation….
A new process for the removal of nitrogen from wastewater is introduced. The process involves three steps: (1) partial nitrification of NH4+ to NO2−; (2) partial anoxic reduction of NO2− to N2O; and (3) N2O conversion to N2 with energy recovery by either catalytic decomposition to N2 and O2 or use of N2O to oxidize biogas CH4. Steps 1 and 3 have been previously established at full-scale. Accordingly, bench-scale experiments focused on step 2. Two strategies were evaluated and found to be effective: in the first, Fe(II) was used to abiotically reduce NO2− to N2O; in the second, COD stored as polyhydroxybutyrate (PHB) was used as the electron donor for partial heterotrophic reduction of NO2− to N2O. ….
Normally, we want to discourage these gases from forming,” said Craig Criddle, a professor of civil and environmental engineering and senior fellow at the Woods Institute for the Environment at Stanford. “But by encouraging the formation of nitrous oxide, we can remove harmful nitrogen from the water and simultaneously increase methane production for use as fuel.
- Total N2O emissions-which are believed to come primarily from nitrogen fertilizers used in agricultural production-would account for about 8 percent of California’s total greenhouse gas emissions. (familysurvivalprotocol.com)
- 1st International IWA Conference on Holistic Sludge Management (washlink.wordpress.com)
- Major Advance in Generating Electricity From Wastewater (wakingtimes.com)
- Major Advance in Generating Electricity From Wastewater (myscienceacademy.org)
- The Final Frontier of Water and Wastewater Treatment: Sludge Management Equipment Market Set to Reach $9.9 Billion by 2017 (prweb.com)
6-8 May 2013
The purpose of this conference is to provide a forum for researchers and practitioners to exchange the latest developments in sludge management.It will give possibilities to examine and discuss the different challenges connected to resource recovery through treatment and disposal of wastewater sludge.
The conference covers sludge management and anaerobic digestion with a broad holistic system perspective. It includes the recycling of nutrients such as phosphorus and nitrogen by focusing on upstream treatment to reduce harmful substances in wastewater, as well as on the production of biogas as a fuel for vehicles. The certification of treated sludge is another important condition for the possibilities to recycle sludge to farmland areas.
Conference also want to share knowledge, practices and ideas for the future directions of process development. The sludge treatment is one of the key issues to be solved. The aim of the conference is to take a major step forward to where all aspects of sludge management are addressed.
- Production and utilization of biogas
- Nutrient recovery processes
- Processes for hygienization of sludge
- The need for a holistic approach including i.e. environmental effects from sludge handling/management in the total performance efficiency of wastewater treatment
- Use of sludge for energy generation including combustion and supercritical gasification
- Emerging contaminants in sludge – upstream separation and optimization to decrease negative effects by detoxification
- Physical and chemical pre-treatment processes, including chemical conditioning, thickening, dewatering, drying
- Modelling of anaerobic processes
- Methane emission from sludge treatment
Erik Dahlquist at email@example.com and Tel. +46-21-151768
Conference Programme Committee Chairman
Monica Odlare at firstname.lastname@example.org and Tel. +46-21-101611
Conference Programme Committee Secretary
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