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Osmotic power

Osmotic power, salinity gradient power or blue energy is the energy available from the difference in the salt concentration between seawater and river water.

Osmotic power

  • Technology for Monitoring & Assessment of Climate Change Impact on Geomorphology in the Coastal Areas of Bangladesh

    Type: 
    Technical Assistance
    Date of submission:
    Phase:
    Completed
    Countries:
    Objective:
    Sectors:

    This Technology Transfer Advances Bangladesh's

    Context

  • CTCN Regional Forum in Asia

    Type: 
    Event
    Date:
    Sunday, July 10, 2016 - Tuesday, July 12, 2016 Europe/Copenhagen
    Country:
    Thailand

    Representatives of 16 countries attended the 11-13 July Regional Forum for National Designated Entities in Asia organized by the Climate Technology Centre and Network (CTCN) of the United Nations Framework Convention on Climate Change (UNFCCC) to promote information exchange and capacity building on climate technologies and finance.

  • Moist Membranes for Cultivation and Collection of Algae

    Type: 
    Product

    Background: Mass cultivation of algae for biofuel production has focused on the use of open ponds or closed bioreactors. Both approaches depend upon routine liquid culturing of the algae and require the removal of large quantities of water at the time of cell harvesting and subsequent extraction of desired products. This invention proposes the use of porous inert membranes to support the growth and subsequent harvesting of the algae.

  • Osmotic power

    Type: 
    Technology
    Sectors:
    Objective:

    Electricity generation through the use of salinity gradients between salt and fresh water is a relatively new concept. While discovered and discussed in the 1970s, research has been slow and most of it only recently. Two practical methods concerning membrane technology are currently being researched: the reverse electrodialysis (RED) method and pressure retarded osmosis (PRO). Both technologies are dependent on the semi permeable membrane. A semi-permeable membrane is selective in its permeability, i.e. only specific substances can pass through the membrane.

  • Biotechnology for crop adaptation

    Type: 
    Technology
    Objective:

    Breeding for improved performance under environmental stresses involves activities which accumulate favourable alleles (different forms of a gene) which contribute to stress tolerance. Biotechnological contributions to crop adaptation to climate change do not only, or even mainly, concern the placement into the crop of one or more genes from an organism with which the crop could not normally breed (i.e. genetically modified crops).

  • Summary for policymakers. Climate change 2007: the physical science basis

    Type: 
    Publication
    Publication date:
    Objective:
    Approach:

    The Working Group I contribution to the IPCC Fourth Assessment Report describes progress in  understanding of the human and natural drivers of climate change, observed climate change, climate processes and attribution, and estimates of projected future climate change. It builds upon past IPCC assessments and incorporates new findings from the past six years of research.Key findings include:

  • Adapting to Climate Change: Strengthening the Climate Resilience of Water Sector Infrastructure in Khulna, Bangladesh

    Type: 
    Publication
    Publication date:
    Objective:
    Sectors:

    This publication provides a specific example of assessing the impacts of climate change on the water sector infrastructure in Khulna, Bangladesh, by developing the climate change and socioeconomic development scenarios for 2030 and 2050, and running mathematical models to obtain the level of salinity in river water--where the proposed intake for water supply is located--and the extent of waterlogging in the city. The study then identifies and makes a financial evaluation on adaptation options to cope with the impacts.