scholarly journals Understanding social acceptability of arsenic-safe technologies in rural Bangladesh: a user-oriented analysis

Water Policy ◽  
2015 ◽  
Vol 18 (2) ◽  
pp. 318-334 ◽  
Author(s):  
Debasish Kumar Kundu ◽  
Aarti Gupta ◽  
Arthur P. J. Mol ◽  
Mahbuba Nasreen
Keyword(s):  
Drinking Water ◽  
Social Acceptance ◽  
Arsenic Removal ◽  
Future Research ◽  
Social Acceptability ◽  
Safe Drinking Water ◽  
Rural Bangladesh ◽  
The Social ◽  
Tube Well ◽  
Dug Well

Contamination of shallow tube well drinking water by naturally occurring arsenic is a severe societal and human health challenge in Bangladesh. Multiple technological interventions seeking to ameliorate the problem face hurdles in securing social acceptance, i.e. the willingness of users to receive and use a technology. While most papers focus on expert understanding of social acceptability, this paper analyzes how users themselves understand the factors shaping the social acceptability of safe drinking water options in rural Bangladesh. We then deploy such understanding to comparatively assess which factors users see as most important in securing social acceptance for three safe drinking water options in rural Bangladesh: the arsenic removal household (Sono) filter; the deep tube well; and an improved dug well. We draw on focus groups and semi-structured interviews with technology users in six villages across three districts to analyze how users assess the social acceptability of specific arsenic-safe technologies. Our findings highlight that factors such as availability, affordability and compatibility with existing water use practices, as understood by users, are key to securing users' acceptance of a specific arsenic-safe option. In concluding, we point to a future research agenda to analyze user-oriented social acceptability of arsenic-safe technologies in developing country contexts.

scholarly journals Experimenting with a novel technology for provision of safe drinking water in rural Bangladesh: The case of sub-surface arsenic removal (SAR)

2018 ◽  
Vol 53 ◽  
pp. 161-172 ◽  
Author(s):  
Debasish Kumar Kundu ◽  
Aarti Gupta ◽  
Arthur P.J. Mol ◽  
Mohammad Moshiur Rahman ◽  
Doris van Halem
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Safe Drinking Water ◽  
Rural Bangladesh ◽  
Novel Technology

Subsurface iron and arsenic removal for shallow tube well drinking water supply in rural Bangladesh

2010 ◽  
Vol 44 (19) ◽  
pp. 5761-5769 ◽  
Author(s):  
D. van Halem ◽  
S. Olivero ◽  
W.W.J.M. de Vet ◽  
J.Q.J.C. Verberk ◽  
G.L. Amy ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Arsenic Removal ◽  
Drinking Water Supply ◽  
Rural Bangladesh ◽  
Tube Well

scholarly journals Fe0/H2O Filtration Systems for Decentralized Safe Drinking Water: Where to from Here?

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 429 ◽  
Author(s):  
Charles Nanseu-Njiki ◽  
Willis Gwenzi ◽  
Martin Pengou ◽  
Mohammad Rahman ◽  
Chicgoua Noubactep
Keyword(s):  
Drinking Water ◽  
Low Income ◽  
Universal Access ◽  
Low Cost ◽  
Low Income Countries ◽  
Future Research ◽  
Systematic Research ◽  
Safe Drinking Water ◽  
Iron Corrosion ◽  
Small Communities

Inadequate access to safe drinking water is one of the most pervasive problems currently afflicting the developing world. Scientists and engineers are called to present affordable but efficient solutions, particularly applicable to small communities. Filtration systems based on metallic iron (Fe0) are discussed in the literature as one such viable solution, whether as a stand-alone system or as a complement to slow sand filters (SSFs). Fe0 filters can also be improved by incorporating biochar to form Fe0-biochar filtration systems with potentially higher contaminant removal efficiencies than those based on Fe0 or biochar alone. These three low-cost and chemical-free systems (Fe0, biochar, SSFs) have the potential to provide universal access to safe drinking water. However, a well-structured systematic research is needed to design robust and efficient water treatment systems based on these affordable filter materials. This communication highlights the technology being developed to use Fe0-based systems for decentralized safe drinking water provision. Future research directions for the design of the next generation Fe0-based systems are highlighted. It is shown that Fe0 enhances the efficiency of SSFs, while biochar has the potential to alleviate the loss of porosity and uncertainties arising from the non-linear kinetics of iron corrosion. Fe0-based systems are an affordable and applicable technology for small communities in low-income countries, which could contribute to attaining self-reliance in clean water supply and universal public health.

scholarly journals Alginate-based biotechnology: a review on the arsenic removal technologies and future possibilities

2019 ◽  
Vol 68 (6) ◽  
pp. 369-389 ◽  
Author(s):  
Shakhawat Chowdhury ◽  
Imran Rahman Chowdhury ◽  
Fayzul Kabir ◽  
Mohammad Abu Jafar Mazumder ◽  
Md. Hasan Zahir ◽  
...  
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Alginate Bead ◽  
Alginate Beads ◽  
Industrial Applications ◽  
Mass Scale ◽  
Future Research ◽  
Large Area ◽  
Arsenic Adsorption ◽  
Wide Range

Abstract The alginate-based adsorption technologies have emerged as potential methods for arsenic removal from drinking water. The adsorbents (iron oxide, hydroxide, nano zero valent iron (nZVI), industrial waste, minerals, magnetite, goethite, zirconium oxide, etc.) are impregnated into alginate beads to produce the media. The biocompatibility, rough surface with large area, and amorphous and high water permeable bead structure improve arsenic adsorption efficiency while the regeneration process is simpler than the conventional adsorbents. In recent years, studies have reported laboratory-scale applications of alginate beads, encapsulated and impregnated with adsorbents, for arsenic removal from drinking water. The arsenic removal efficiencies were reported to be over 95% with a wide range of concentrations (10–1,000 parts per billion) and pH (3.0–7.5). However, commercial- and/or mass-scale applications have not been reported yet, due possibly to overall cost, complexity, reusability, and arsenic waste-laden sludge management. In this paper, research achievement on arsenic removal using alginate-based adsorbents has been reviewed. The review was performed in context to alginate bead development, adsorbent encapsulation and impregnation, application, performance, and regeneration. The advantages and limitations of the methods were analyzed and the scopes of future research were identified for mass scale domestic and industrial applications.

scholarly journals Assessing the Infection Burden and Associated Risk Factors in Children under 5 Across Jaipur's Urban Slums: A Feasibility Study Using a One Health Approach

2020 ◽  
Author(s):  
Logan Manikam ◽  
Spencer Rutherford ◽  
David Emes ◽  
Meghan Cupp ◽  
Radhika Sharma ◽  
...  
Keyword(s):  
Drinking Water ◽  
Built Environment ◽  
One Health ◽  
Behavioural Change ◽  
Urban Slums ◽  
Future Research ◽  
Infection Prevalence ◽  
Safe Drinking Water ◽  
Culture Independent ◽  
Children Under 5

Purpose: Infectious diseases are one of the leading causes of death among children under five (U5s) both in India and globally. This is worse in slum environments with poor access to water, sanitation and hygiene (WASH), good nutrition and a safe built environment. Globally, a One Health (i.e. human, animal and environment) approach is increasingly advocated for by the WHO-FAO-OIE tripartite to reduce infections and antimicrobial resistance. As under-5s living in peri-urban slums are exposed to household- and community-owned companion and livestock animals and pests, the CHIP consortium hypothesised that employing a One Health approach to co-produce behavioural change and slum upgrading interventions may reduce this burden where other WASH and nutrition interventions have failed. This study aimed to assess the feasibility of employing a One Health approach to assess under-5 infection and risk factor prevalence in Jaipurs peri-urban slums, prior to undertaking prospective cohort studies involving culture and culture-independent sampling of under-5s and animals across our study sites in Jaipur (Rajasthan, India), Jakarta (Indonesia) and Antofagasta (Chile). Methods: We administered a rapid household survey to 25 purposively selected households across six slums in Jaipur. The questionnaire used evaluated infection prevalence, healthseeking behaviours, the built environment, the presence of companion and livestock animals and pests, and individual- and household-level demographics. We displayed the correlations between infection incidence and a range of factors in our sample, and displayed the portion of children under 5 who experienced one or multiple episodes of ill health, categorised by a range of One Health factors. Results: Parents reported at least one recent episode of ill health for a large portion (40%) of under-5s within the last 30 days. 80% of under-5s had no access to safe drinking water; every household reported the presence of at least one kind of pest within the respondents own home; and 20% of under-5s feeding equipment was cleaned with water only. Only one household reported owning a companion or livestock animal, potentially reflecting confusion about the definition of these animals. The incidence of infection appeared to be related to WASH and socio-economic factors as expected. Conclusion: Safe drinking water, pest control and behavioural change surrounding the cleaning of under-5 feeding equipment should be given consideration in future research in this locale. Future studies should not rely solely on parent reporting of childrens symptoms cross referencing symptom reporting from multiple household members should be combined with culture and culture-independent sampling. Where possible, researchers should measure the presence of companion and livestock animals directly to avoid misinterpretation and to observe practices rather than relying on reporting alone.

scholarly journals Manganese Removal Status by Arsenic Removal Technologies Available in Bangladesh: Manganese Removal Treatment by Sodium Hypochlorite

1970 ◽  
Vol 46 (3) ◽  
pp. 291-296
Author(s):  
S Siraj ◽  
AI Kazi ◽  
S Ahmed ◽  
MA Akbor ◽  
A Ahsan
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Field Testing ◽  
Well Water ◽  
Limit Set ◽  
Safe Drinking Water ◽  
Environmental Technology ◽  
Manganese Removal ◽  
Removal Technologies ◽  
Chlorine Oxidation

In addition to arsenic, the groundwater in Bangladesh is often found to be contaminated with manganese whose permissible limit set by WHO being 400 ppb in drinking water. Since most arsenic removal technologies (ARTs) are designed to remove As and not to remove Mn, during field testing and verification of performance of ARTs under the Bangladesh Environmental Technology Verification-Support to Arsenic Mitigation (BETV-SAM) project of BCSIR, it has been found that only the Sono technology using Fe0 as arsenic removal medium which can also remove Mn to produce Mn safe drinking water but others such as Alcan, Read-F household, Sidko, Nelima, Shawdesh cannot. During field testing of these technologies under the BETV-SAM project, it has been attempted to treat Mn by a traditional chlorine oxidation method to produce Mn safe drinking water. Concentrations of dissolved As (T), As (III), Fe, Mn and pH in the considered well water for manganese treatment were in ranges of 125 - 1247 ppb, 116 - 1127 ppb, 1.40 - 15.5 ppm, 505 - 2245 ppb and 7.0 to 7.5, respectively. The required chlorine dose and time for treatment of manganese in 20 L water have been found to be 6.2 - 12.4 ppm and 1 - 2 h, respectively. Keyword: Arsenic; Manganese; ART; Verification; Chlorine; Iron. DOI: http://dx.doi.org/10.3329/bjsir.v46i3.9033 BJSIR 2011; 46(3): 291-296

scholarly journals Lessons from the Frontline: Exploring How Stakeholders May Respond to Emerald Ash Borer Management in Europe

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 617 ◽  
Author(s):  
Mariella Marzano ◽  
Clare Hall ◽  
Norman Dandy ◽  
Cherie LeBlanc Fisher ◽  
Andrea Diss-Torrance ◽  
...  
Keyword(s):  
Biological Control ◽  
Social Acceptance ◽  
Emerald Ash Borer ◽  
Social Acceptability ◽  
Ash Dieback ◽  
Hymenoscyphus Fraxineus ◽  
The Social ◽  
Ash Trees ◽  
The Usa ◽  
Management Approaches

The emerald ash borer (EAB) has caused extensive damage and high mortality to native ash trees (Fraxinus; sp.) in North America. As European countries battle with the deadly pathogen Hymenoscyphus fraxineus (ash dieback) affecting European ash (Fraxinus excelsior), there is concern that the arrival of EAB will signal the demise of this much-loved tree. While Europe prepares for EAB it is vital that we understand the social dimensions that will likely influence the social acceptability of potential management measures, and experiences from the USA can potentially guide this. We draw on differing sources including a literature review, documentary analysis, and consultation with key informants from Chicago and the Twin Cities of Minneapolis and St. Paul. In this paper, we focus on EAB management responses that involve chemical applications, tree felling and replanting, and biological control, and assess their likely social acceptability to stakeholders based on the perceived risks and benefits. Benefits involve protecting specific ash trees and slowing the spread of EAB across the landscape. Risks include collateral harm from insecticide use on human and environmental health, financial costs and liabilities, and the effectiveness of each approach. Biological control and replacing ash with other species are likely to be largely acceptable across contexts and stakeholder groups but pre-emptive felling and insecticide application could be more problematic if seeking widespread social acceptance. Based on our observations from the evidence collected we offer suggestions for approaching EAB management in Europe with a focus on improving prospects of social acceptability. Strong engagement will be necessary to establish the relevance and reason for using different management approaches and to build awareness and trust.

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