scholarly journals Community Perception and Adaptation to Safe Drinking Water Scarcity: Salinity, Arsenic, and Drought Risks in Coastal Bangladesh

2014 ◽  
Vol 5 (2) ◽  
pp. 110-124 ◽  
Author(s):  
Md. Anwarul Abedin ◽  
Umma Habiba ◽  
Rajib Shaw
Keyword(s):  
Drinking Water ◽  
Water Scarcity ◽  
Safe Drinking Water ◽  
Community Perception ◽  
Coastal Bangladesh

Exploring suitable sites for installing safe drinking water wells in coastal Bangladesh

2018 ◽  
Vol 7 ◽  
pp. 91-100 ◽  
Author(s):  
Ratnajit Saha ◽  
Nepal C. Dey ◽  
Sajidur Rahman ◽  
Lakshman Galagedara ◽  
Prosun Bhattacharya
Keyword(s):  
Drinking Water ◽  
Safe Drinking Water ◽  
Coastal Bangladesh ◽  
Water Wells

scholarly journals Households’ Willingness to Pay for Disaster Resilient Safe Drinking Water Sources in Southwestern Coastal Bangladesh

2019 ◽  
Vol 10 (4) ◽  
pp. 544-556 ◽  
Author(s):  
Md. Sariful Islam ◽  
Sonia Afrin ◽  
Md. Nasif Ahsan ◽  
Mohammed Ziaul Haider ◽  
Tasnim Murad Mamun ◽  
...  
Keyword(s):  
Drinking Water ◽  
Willingness To Pay ◽  
Contingent Valuation Method ◽  
Water Sources ◽  
Maintenance Cost ◽  
Safe Drinking Water ◽  
Present Value ◽  
Coastal Bangladesh ◽  
Drinking Water Sources ◽  
The People

Abstract Nonfunctionality of engineered water sources after two catastrophic cyclones—Sidr in November 2007 and Aila in May 2009—created acute scarcity of safe drinking water in coastal Bangladesh. The objective of this study was to estimate households’ willingness to pay (WTP) for disaster resilient water sources in Dacope upazila of Khulna District in southwestern coastal Bangladesh. By applying the double bounded dichotomous contingent valuation method to a dataset of 250 randomly selected households, we found that the mean WTP is BDT 263 and that inaccessibility to functional safe drinking water sources is the most significant determining factor of households’ WTP. Projecting mean WTP for a disaster resilient water source project in the study area, we measured a present value of aggregate WTP over project’s life span worth about BDT 624 (USD 7.37) million, which is about 14.30 times the present value of project’s aggregate establishment and maintenance cost. However, charging the local inhabitants a water tariff at mean WTP would lead to the exclusion of around 50% of the people from getting access to the improved water services or create a free riding problem. Through simulation exercises this study determined that the socially optimal water tariff is BDT 50 per month. This tariff would not only generate revenue of more than five times the project cost but would also create access to disaster resilient improved drinking water sources for almost 99% of the people.

scholarly journals Producing Safe Drinking Water Using an Atmospheric Water Generator (AWG) in an Urban Environment

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2940
Author(s):  
Offir Inbar ◽  
Igal Gozlan ◽  
Stanislav Ratner ◽  
Yaron Aviv ◽  
Roman Sirota ◽  
...  
Keyword(s):  
Drinking Water ◽  
Urban Environment ◽  
Water Scarcity ◽  
New Technologies ◽  
Sampling Site ◽  
Inorganic Ions ◽  
Safe Drinking Water ◽  
Atmospheric Water ◽  
Alternative Source ◽  
Dew Water

Alternative new technologies are urgently needed to overcome the rapidly increasing global water scarcity. Atmospheric dew water is a potential source of potable water, as the earth’s atmosphere contains billions of tons of fresh water (98% in a vapor state). The atmospheric water generator (AWG) converts water vapor into liquid water and is a promising solution for water scarcity. We provide the first comprehensive analysis of the chemical profiles of water produced for several months by an AWG in the city of Tel Aviv, Israel. Metals, inorganic ions, volatile organic compounds (VOCs), and semi-VOCs were analyzed in the dew water. The main elements found were ammonium, calcium, sulfate, and nitrate. Location of the sampling site in an urban residential area, between major traffic routes, likely affected the chemical composition of the produced dew water. Nevertheless, the produced water nearly always (day and night in different seasons) met the WHO and Israeli drinking water standards. Thus, even in a highly developed urban environment, the AWG offers an excellent alternative source of safe drinking water throughout the year.

Scarcity to solution: perceived reasons for safe drinking water scarcity and local coping responses in a coastal village of Bangladesh

2016 ◽  
Vol 7 (3) ◽  
pp. 542-550
Author(s):  
Md. Ali Imam ◽  
Md. Zahidul Haque ◽  
Samiha Yunus
Keyword(s):  
Climate Change ◽  
Drinking Water ◽  
Water Scarcity ◽  
Cost Effective ◽  
Tree Planting ◽  
Small Scale ◽  
Safe Drinking Water ◽  
Coping Responses ◽  
The Impact ◽  
Perceived Reasons

People are directly and indirectly exposed to changing weather patterns through changes in the quality of water, air, and food changes in ecosystems, agriculture, industry, human settlements and the economy. Hence, this study explored local perceived reasons for safe drinking water scarcity and under such circumstances the coping responses in their region. This is a descriptive study based on qualitative methods. Male and female informants (30 + years of age) were purposively identified and data for the study were collected in three ways, through observation and informal discussion, in-depth interviews (n = 18), and three focus group discussions in a coastal village of Bangladesh. Climate change consequences include damaged trees and increased salinity intrusion, leading to a scarcity of safe drinking water. To cope with such scarcity of water, small scale road side mangrove tree planting was found to protect fresh water from salt water. In addition, cost effective rainwater preservation in the community during the rainy season was taken as mitigation of the scarcity of safe drinking water. Considering the geographical and socio-economic context of any specific region, cost effective and environment friendly local adaptive measures can reduce or mitigate the impact of climate change on water resources.

scholarly journals Water quality of small-scale desalination plants in southwest coastal Bangladesh

2017 ◽  
Vol 18 (5) ◽  
pp. 1606-1616 ◽  
Author(s):  
Md. Atikul Islam ◽  
Md. Ali Akber ◽  
Prosun Kumar Ghosh
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Small Scale ◽  
Feed Water ◽  
Safe Drinking Water ◽  
Coastal Bangladesh ◽  
Product Water ◽  
Desalination Plants

Abstract Southwest coastal Bangladesh has an acute scarcity of safe drinking water. Both the government and non-government organizations are now promoting reverse osmosis based small scale desalination plants (SSDPs) to ensure safe drinking water. The aim of this study was to assess the physico-chemical and bacteriological quality of the desalination plants (DPs) installed in southwest coastal Bangladesh. Water samples were collected from the inlet and outlet of 10 DPs. The product water mostly complied with water quality standards. High levels of total dissolved solids (TDS) and electrical conductivity (EC) in feed water were reduced significantly after the treatment, although 10% and 20% of the product water samples respectively did not comply with the WHO drinking water standards for those parameters. Compliance of product water with the WHO and Bangladesh drinking water standards for chloride, bicarbonate and sodium were found in respectively 80%, 90% and 70% of the samples, although their concentrations in all the feed water samples were higher than both of the standards. About one-third of the DPs did not meet the drinking water standard for sodium, which may be an important health concern for the people consuming this water. Apart from one of the DPs, all of them complied with the standard for faecal coliform and Escherichia coli. Results suggest that proper maintenance of the SSDPs is necessary to ensure safe drinking water for the coastal population of southwest Bangladesh.

Bacteriological assessment of aquifer storage and recovery (ASR) water in southwest coastal Bangladesh

2016 ◽  
Vol 6 (2) ◽  
pp. 231-241 ◽  
Author(s):  
Md. Pervez Kabir ◽  
Md. Atikul Islam ◽  
Md. Ali Akber ◽  
Md. Sabbir Ahsan
Keyword(s):  
Drinking Water ◽  
Pond Water ◽  
Aquifer Storage And Recovery ◽  
Safe Drinking Water ◽  
Aquifer Storage ◽  
Government Organizations ◽  
Coastal Bangladesh ◽  
Drinking Water Standard ◽  
Point Of Use

Safe drinking water is scarce in southwest coastal Bangladesh. Harvested rainwater and rain-fed pond water are the main sources of drinking water for people living in this area. Both government and non-government organizations are promoting aquifer storage and recovery (ASR) schemes to provide safe drinking water for this population. This study assessed the bacteriological quality of both source water and abstracted water from five ASR sites. Water sampling and laboratory analysis for indicator bacteria and physico-chemical parameters were conducted once every 2 months, over a period of 1 year. Samples were taken from source ponds, abstraction wells and household storage containers (point of use) for each of the ASR sites. Although the water from abstraction wells showed a 97% and 82% lowering of E. coli and Enterococci counts, respectively, from that of the source ponds, they did not satisfy the WHO drinking water standard. Moreover, the microbial quality of the water deteriorated at the point of use. This indicates the requirement for both in-house treatment and improved hygiene practice for consuming ASR water.

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