Welcome to CleanTick - Network with thousands of cleantech researchers and experts - Join CleanTick >>
CO2 Sequestration

Welcome to the CO2 Sequestration Section @ CleanTick

This is the CO2 Sequestration Community at CleanTick, a global effort to make clean technology a reality.
Get answers to questions and participate in key challenges for the CO2 Sequestration domain.

Ask a Question Take the Challenge

Over 1000 members have already joined CO2 Sequestration community

Join CO2 Sequestration Community Now

Search CO2 Sequestration Questions

Loading

Latest Questions - CO2 Sequestration

  • actually i wan to purify the cultures in my lab..i used many methods like Uv treatment,antibiotic..but they are not working.my all cultures contaminated with bacteria and fungus..plz can any one suggest me the ways to purify it?

    in CO2 Sequestration

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • Hi, need some advise on whether direct cooling & heating elements is appropriate to be immersed in a 10L bubble column photobioreactor filled with microalgae? Thanks

    in CO2 Sequestration

    • View all 5 answers
    • Ibscipio 2 years ago

      Your volume is tiny so the temperature stability needed to produce a consistent algae harvest from day to day will be difficult. Especially using any kind of direct interface. I recommend buying/building a small fluid-to-fluid heat exchanger out of plastic. FYI Georg Fischer Inc. manufactures a HUGE plastic heat exchanger. The total temperature swing from noon to midnight you seek to maintain is 3 deg. F. That's all you get and still have consistent algae produced from day to day.

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • http://web.mit.edu/newsoffice/2011/carbon-dioxide-capture-1206.html
    A new MIT study shows that, at least for the foreseeable future, proposals to capture carbon from the air are not realistic. Are you agree with this assertion?

    in CO2 Sequestration

    • View all 2 answers
    • Bioreactor 2 years ago

      Under an open pounds or a semi continuous culture system, this reality is correct; mainly due to two facts: low CO2(g) diffusion into culture medium and a very high culturing area are required. But with continuous culture systems, required culture area can be reduced at least by 10 times; culture time can be reduced from 3 - 4 weeks to 3 - 4 days and productivity increased 1.5 - 2 times. All these improvements do it viable Carbon Capture.

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • I read about a company's (LanzaTech) efforts in converting flue gases to ethanol...

    http://dev.sandbox.green.autoblog.com/2011/08/27/lanzatech-harsco-team-up-to-convert-steel-mill-flue-gases-to-et/

    What are the technical and process challenges in converting flue gases to a range of hydrocarbon fuels?

    in CO2 Sequestration

    • Bioreactor 2 years ago

      Flue gases are a very important source of CO2(g) for microalgae cultures for biofuels production. But, it´s so important verify and controlling SOx and NOx gases concentration into the culture medium. These gases causing serious damage to microalgae cultures.

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • Happened to read this paper "Biotransformations of carbon dioxide in photobioreactors"(http://www.mendeley.com/research/biotransformations-carbon-dioxide-photobioreactors/#), it's abstract says: Despite large amounts of CO2 that were sequestered during the cultivation, it is demonstrated that only a small fraction (about 3%) was effectively fixed as microalgae biomass, indicating the existence of other routes of CO2 conversion in the photobioreactor.

    in CO2 Sequestration

    • View all 4 answers
    • Bioreactor 2 years ago

      Effectively, natural diffusion of CO2(g) into water is around of 3% and this is a normal concentration in open pound bioreactors due to they are open systems. But in PBR closed systems you can hiper saturated the liquid culture medium, when microalgae are in exponential grown, so that you can rise disolved CO2(g) concentrations as high as 15%, there is 5 times normal concentration. However you must to be account that these high disolved CO2(g) concentrations only can be supported by continuous culture systems.

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • How do you see algae being incorporated into your home?

    in CO2 Sequestration Domestic Wastewater Treatment Sustainable Homes and Communities Biotechnology

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • Would you place plastic tubing on top of your roof(facing south) to produce about a gallon of fuel a day?

    in Algae Fuels CO2 Sequestration Sustainable Cities

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • What do you think would happen if you found the gene sequence responsible for the production of photosystems in algae and copied and pasted this protein into the gene sequence? Would there be more photosystem structures, and would that increase the efficiency of light capture?

    http://www.facebook.com/AlgaeFuel

    in CO2 Sequestration

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • http://www.powermag.com/POWERnews/4055.html?hq_e=el&hq_m=2287397&hq_l=4&hq_v=48bf396b28

    in CO2 Sequestration Cleantech Government Policies and Regulations

    Answer this question / Share a link
    Avatar Image
      or Cancel
  • GREENNOVA, italian startup company, is active in microalgae technology for biobased chemicals. Technology portfolio includes waste to energy system, waste recovery, waste water treatment, CO2 capture.

    Company : GREENNOVA srl

    in Algae Fuels CO2 Sequestration Industrial Wastewater Treatment

    • Narsi 3 years ago

      Hi, can you let me know what is unique about the biochemicals portfolio your company has? Thanks!

    Answer this question / Share a link
    Avatar Image
      or Cancel

Take the CO2 Sequestration Challenge

Coming Soon

Latest Discussions - CO2 Sequestration

20 Things You Can Do @ CleanTick

20 Things @ CleanTick