Navigation Links
Stanford engineers use rocket science to make wastewater treatment sustainable
Date:7/26/2010

Within the sludge of wastewater treatment plants is an invisible world teeming with microbes. Here, diverse species of bacteria convert solid and liquid wastes into gases, some of which contribute to global warming.

Now two Stanford University engineers are developing a new sewage treatment process that would actually increase the production of two greenhouse gases nitrous oxide (aka, "laughing gas") and methane and use the gases to power the treatment plant.

"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."

Criddle, an expert in wastewater management, has joined forces with Brian Cantwell, a professor of aeronautics and astronautics, who has spent the last five years designing rocket thrusters that run on nitrous oxide.

With support from a Woods Institute Environmental Venture Projects grant, Cantwell and Criddle are applying that rocket technology to sewage treatment, with the goal of making the process energy neutral and emissions free.

"We want to reduce the cost of wastewater treatment, increase energy generation and eliminate greenhouse gas emissions," Cantwell said.

"For too long we've thought of treatment plants as places where we remove organic matter and waste nitrogen," Criddle added. "We need to view these wastes as resources, not simply something to dispose of."

Microbial zoo

For Criddle and Cantwell, the first step in building a green treatment plant is raising the right kind of bacteria. "We're really managing a zoo," Criddle said. "To get the right microbes, we need to encourage the growth of bacteria that produce nitrous oxide gas."

One way
'/>"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Heat waves could be commonplace in the US by 2039, Stanford study finds
2. Same types of cell respond differently to stimulus, Stanford study shows
3. Scientific expertise lacking among doubters of climate change, says Stanford-led analysis
4. High-yield agriculture slows pace of global warming, say Stanford researchers
5. Large majority of Americans still believe in global warming, Stanford poll finds
6. Stanford pollster to discuss latest survey on global warming
7. Stanford scientists track polluted groundwater to the sea
8. Opinion polls underestimate Americans concern about the environment, Stanford study finds
9. New Stanford-led program aims to produce insights into brain injury, recovery
10. Aboriginal hunting and burning increase Australias desert biodiversity, Stanford researchers find
11. New Stanford tool enables wider analyses of genome deep sequencing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Stanford engineers use rocket science to make wastewater treatment sustainable
(Date:7/9/2014)... new study shows that some shark species may be able ... may come with rising temperatures. , The Arctic today is ... it wasn,t always like that. Roughly 53 to 38 million ... the Arctic was more similar to a huge temperate forest ... including ancestors of tapirs, hippo-like creatures, crocodiles and giant tortoises. ...
(Date:7/9/2014)... U.S. may be on the verge of an economy driven ... cleaner than coal and is undergoing a production boom. It ... but recent research is casting serious doubts over just how ... & Engineering News (C&EN), the weekly news magazine of ... a senior correspondent at C&EN, explains that when burned as ...
(Date:7/9/2014)... and N-methyl-D-aspartate receptor antagonists can alleviate the ... affect irreversible cognitive dysfunction and effectively scavenge ... beta peptide (Aβ) vaccines reduced and eliminated ... transgenic mouse model, and significantly improved behavioral ... his team, First Affiliated Hospital of China ...
Breaking Biology News(10 mins):Shark teeth analysis provides detailed new look at Arctic climate change 2Shark teeth analysis provides detailed new look at Arctic climate change 3
... can pay big dividends to aging baby boomers who want ... division of geriatric medicine at Saint Louis University, in a ... of life as we age. Living well and feeling ... your lifetime is priceless, says Morley, who is coauthor of ...
... have devised a novel way to create tiny colonies ... organ. The work could allow better screening of new ... reduce the costs associated with their development. Liver ... pull drugs off the market. These dangerous drugs slip ...
... NASA study estimates that most ground-level particulate pollution in ... America and only a small amount is brought to ... Researchers using an innovative global aerosol tracking model have ... sources and movements of aerosols near the ground where ...
Cached Biology News:Eat chocolate, drink wine, add fun to life: SLU geriatrician shares secrets of staying young 2Eat chocolate, drink wine, add fun to life: SLU geriatrician shares secrets of staying young 3Eat chocolate, drink wine, add fun to life: SLU geriatrician shares secrets of staying young 4MIT: 'Micro' livers could aid drug screening 2MIT: 'Micro' livers could aid drug screening 3Local sources major cause of US near-ground aerosol pollution 2
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, April ... Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... nonprofit organization solely dedicated to finding a cure for hepatitis ... worldwide, will host its annual Crystal Ball on Friday, April ...
(Date:1/14/2014)... , Jan. 14, 2014 As pet owners drew up ... many of them wrote: "Take better care of my furry companion." ... designer clothes and top-brand carrying cases to take the little canine ... might also feel compelled to buy some pricey toys at the ...
(Date:1/14/2014)... iLab Solutions, the leader in core facility ... of Product Strategy. In this role, Michelle will work with ... guide in the development of iLab products. Her main goal ... benefit to the scientific community by offering the most advanced, ...
(Date:1/14/2014)...   Kinaxis ®, provider of RapidResponse ®, a cloud-based ... planning ( S&OP ) service, is proud to be a ... be held at the Hilton San Diego Bayfront, January 30 ... Elisabeth Kaszas , Director of Supply Chain at Amgen, as ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2
... Cardium Therapeutics (Amex:,CXM) announced today that Richard A. ... is an early pioneer of coronary stent,technology and is ... stent, the Palmaz-Schatz stent. Dr. Schatz is Research Director ... at,Scripps Clinic in La Jolla, California. He is also ...
... ... in Rockville, MD, ... NVAX ), the State of Maryland and Montgomery County ... the company,s headquarters in Rockville, Maryland. The 5,000,square-foot, $5 million ...
... "Anatomy of a Deal - BioMS Medical and Eli ... - BioMS Medical Corp (TSX: MS),a leading developer in ... Kevin Giese, President and CEO, BioMS Medical and Buu ... will take part in a speciality panel session at ...
Cached Biology Technology:Richard A. Schatz, M.D. Joins Cardium's Scientific Advisory Board 2Richard A. Schatz, M.D. Joins Cardium's Scientific Advisory Board 3Richard A. Schatz, M.D. Joins Cardium's Scientific Advisory Board 4Novavax Opens Its First U.S. Vaccine Plant 2Novavax Opens Its First U.S. Vaccine Plant 3Novavax Opens Its First U.S. Vaccine Plant 4BioMS Medical to Participate in Speciality Panel Session at BioFinance 2008 2BioMS Medical to Participate in Speciality Panel Session at BioFinance 2008 3
DAPI: 4', 6-Diamino-2-phenylindole dihydrochloride. Antifade Solution: p-Phenylenediamine and glycerol in PBS solution. 0.4g/mL DAPI suspended in Antifade....
Anti-Mouse Qa.m8, Ascites (Clone 5035-24.1) (mouse IgG3)...
... the 9, 10, 12, and 13 positions. It ... for the quantification of 13(S)-HODE by GC- or ... linoleic acid with plant and mammalian lipoxygenases. It ... tumor cells to the endothelium at concentrations around ...
...
Biology Products: