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WAB-Bangladesh Country Strategy 2006-2011

Bangladesh has a population of 144 million living in an area of 147,570 square kilometres. The rate of population growth fell from 2.5 to1.6% in the 1997-01 period, although that of the urban population has increased from 6% to 21% between 1961 and 2001. An estimate puts the total population at 181 million by 2025 with 41% living in the urban areas - nearly half of them poor and without services. .

 

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UnionWise Water Technology Mapping

Sanitation, Hygiene and Water Supply Project (GOB-UNICEF) has been approved having broaderperspective of reducing mortality through providing safe water, sanitation facilities and improvedhygiene behavior. Water supply is an important aspect of the project and supplied water should befree from bacteriological and chemical contamination as well.

 

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Rain water : Next option as source of water.

Water is the most essential part for lives on earth. It is also a decisive factor in the growth and development of human life i.e. the development of a nation. When the water resource of a country poses any sort of threat then it is evident that the lives in that country are really in danger. Presently the main sources of water in Bangladesh are surface waters in rivers, canals, reservoirs, lakes and ponds and groundwater in shallow or deep aquifers.

 

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Rainwater Harvesting: Comparison Between Existing Techniques And Its Modification

Gathering rainwater by using roofs, reservoirs and other collectors is called rainwater harvesting.The rainwater harvesting is considered as a possible answer to the global water use problem,especially where surface and groundwater is limited. Also rainwater is soft water, pollution free,iron & Arsenic free. The rooftop rainwater harvesting system seems suitable for Bangladesh, asthe system will be designed only to supply drinking and cooking water.

 

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Feasibility Study of Rainwater Harvesting Techniques in Bangladesh

Rural water supply in Bangladesh was based on groundwater, as it is free from pathogenic microorganisms and available in adequate quantity in shallow aquifers. But in the coastal belt because of high salinity in surface and groundwater, in the hilly areas due to absence of good groundwater aquifers as well as difficulties in tubewell construction in stony layers were the main constraints for the development of a dependable water supply system.

 

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Comparative assessment of four alternative water supply options in arsenic affected areas of Bangladesh

Arsenic contamination in groundwater and its toxic effect on human health is a major public health problem in Bangladesh and it is emphasized in the national level to use alternative water sources for drinking water to mitigate the arsenic problem. To identify reasons of nonfunctioning and in order to develop a comparative information and better understanding of the options, assessment of alternative water supply options in both technical and social aspects are essential.

 

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Water Quality Improvement by Base Course Aggregate in a Permeable Pavement with Underlying Reservoir Structure

Permeable pavements are an emerging water sensitive urban design component that allow for onsite infiltration of stormwater while providing both a structurally supportive surface and full amenity value ofabove lying land. This paper reports on research investigating the water qualityeffects of modifying the structure of a permeable pavement to accommodate underlying water storage amongst aggregate for harvesting and reuse. To investigate the effects on water quality of water storage in an aggregate matrix, model pavement structures were constructed in a laboratory and a synthetic stormwater was applied directly to the pavement reservoirs.

 

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Turning the Super-tanker: Drawing on Social Theory to Enable the Transition to Sustainable Urban Water Management

Worldwide, urban water managers and strategists are grappling with the challenge of managing water resources in new ways to ensure healthy environments and communities in the future. Numerous commentators have highlighted significant social and technological barriers tothe uptake of new approaches and some are calling for a major socio-technical transition in urban water management. Social research and theory is an increasingly important factor in understanding and responding to the challenges associated with evolving a more sustainable society.

 

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Towards An Institutional Capacity Assessment Framework For Sustainable Urban Water Management

The need to change urban water management to become more sustainable is widely recognised. Recently there has been considerable financial investment in urban water reform; however these reforms have not been as successful as anticipated, mostlikely because there is a lack of criticalanalysis of existing capacity and/or capacity deficits. Understanding and assessing institutional capacity is crucial to addressing existing institutional impediments. Institutional capacity includes the human resources, intra-organisational, inter-organisational and/or external rules and incentives capacity spheres.

 

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