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Algae and human waste to run cars in New York !!? 12

"This project is still in the pilot phase, but the results are promising," Holloway said. "We can convert algae grown from the waste water New Yorkers produce every day to high-quality fuel that can be put right in your gas tank."

The Algal Turf Scrubber is a system that consists of two 350-foot metal sloped troughs and mimics a stream ecosystem by varying flow currents and using sunlight to promote algae growth.
 One of the algae processing system's two sloped troughs receives 40 gallons of treated wastewater per minute and the other receives 20 gallons per minute. When sufficient algae growth occurs, typically at 10 to 14 day intervals, the algae is removed using wet/dry vacuums. 
This is needed because algae has a high water content and the removal system allows for easy separation of the algae from the water. The algae is then sent to the chemical engineering department at the University of Arkansas, where it is converted to biofuel. The Algal Turf Scrubber is a patented technology developed by Dr. Walter Adey and help by the Smithsonian Institution.
The algae biofuel project is part of the Jamaica Bay Watershed Protection Plan.
http://www.nyc.gov/html/dep/html/press_releases/10-98pr.shtml
Sun November 21 2010 01:49:12 PM by Natalia algae and human waste to energy  |  human waste to energy with algae  |  Newyork and algae 2391 views

Comments - 4

  • Manohar wrote:
    Sun November 21 2010 02:18:23 PM

    This is something similar to what is being tried in California.
    "
    An algae-based wastewater treatment project is planned to be started in May, at Laguna wastewater treatment plant in the city of Santa Rosa, California.The pilot plant relies on native algae and marsh plants to purify sewage and produce methane.The methane gas will run a generator that charges a fleet of four electric maintenance vehicles.

    The project is co-ordinated by Sonoma State University biologists. They have constructed six algae ponds at Laguna to clean a small portion of the wastewater stream, meeting state standards for nitrates and phosphates.

    Laguna serves a population of 250,000 people, and it would require more than 100 acres of algae ponds to purify the entire waste stream of nitrates.The current project measures only 800 square feet. Treddinick, the project development manager for the city's Utilities Department, plans to scale up the project to an acre.

    "
    Read more


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  • Larsyn wrote:
    Sun November 21 2010 05:00:43 PM

    This is the type of thing I've been supporting. All cities have a wastewater problem & if they all used algae to handle that problem we would not be talking about 12,000,000 acres to produce algae. Cities producing algae with a processor in the vicienty makes sence to me.

     

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  • Mon November 22 2010 12:30:46 AM

    Many people cringe at the thought of human waste based energy systems, and would rather not think about what happens down the pipeline, but as humanity becomes increasingly demanding of energy we must begin to embrace unconventional methods of producing it !

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  • Anna wrote:
    Mon November 22 2010 11:40:30 PM

    This is interesting. Countries like India and China with huge populations, can benefit considerably.
     
    Can someone post the calcultions ? as to how much algae can be produced, with a kg of sewage waste !?
     
    How much does it cost ?
     
    Wha tis the required set up ?
    What species works well ? Or is it that we need to first ifnd the local species and then try out with teh sewage waste ?
     
    I will much appreciate answers to the above.
     

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