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Saline water purification for households and low-cost durable housing technology for coastal areas of Bangladesh

This technical assistance advances the following Sustainable Development Goals: 

No poverty

Goal: No poverty
No poverty

Gender equality

Goal: Gender equality
Gender equality

Clean water and sanitation

Goal 6: Clean water and sanitation
Clean water and sanitation

Reduced inequalities

Goal 10: Reduced inequalities
Reduced inequalities

Climate action

Goal 13: Climate action
Climate action

This Technology Transfer Advances Bangladesh's

  • Nationally Determined Contribution to develop climate resilient housing, and its recognition of water security as a key area for which to address the adverse impacts of climate change. 


In Bangladesh, due to sea-level rise, saline water intrusion in the coastal areas is increasing significantly while fresh water flow from the upper riparian countries is gradually decreasing. As a result, most of the land areas there are becoming saturated with saline water, and potable water is becoming more scarce. Collecting fresh water is becoming a major task for the women and children in poor households. Technical assistance is required to install desalination plants or other desalination technologies at affordable prices in the households. 

Low-cost climate resilient housing is another important issue concerning the coastal people of Bangladesh. The houses made of low quality materials can not last long. The durability of structures built using local sand, bricks and saline water is very poor. Low-cost salinity-proof structures are essential for the poor communities living along the coastal belt.

Requested CTCN Response

  • Saline water Purification technology of saline water at household level
  • Identification of technologies that can be used in building low-cost durable houses

Relevant Technologies & Approaches

Expected Results

  • Targeted communities will gain access to pure drinking water and safe houses during cyclones, storm surges, and coastal flooding 
  • As the result of building safe houses, the poor will no longer need to shift to other houses in times of storms, cyclones, nor will they need to rebuild or repair houses every year

For further information, please see the full technical assistance request in the Documents section.

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