scholarly journals Enhancing the resilience of the rainwater for drinking (RFD) system through systematic monitoring: a case study at the Ly Nhan rural hospital in Vietnam

2021 ◽  
Author(s):  
Hakyung Lee ◽  
Tran Hoai Son ◽  
Dao Anh Dzung ◽  
Jongkook Lee ◽  
Mooyoung Han ◽  
...  
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Rainwater Harvesting ◽  
Open Data ◽  
Data Access ◽  
Operational Mode ◽  
The Sustainable Development ◽  
Systematic Monitoring ◽  
Harvesting Systems ◽  
Unsafe Water

Abstract Many rainwater harvesting systems have been installed and operated to supply drinking water to rural regions. However, they often lacked the management method to produce safe drinking water reliable. The current practice of operating rainwater harvesting systems did not have systematic monitoring as the basis of reliable operation so that the operators did not have confidence in their operation. To overcome these limitations, a rainwater for drinking (RFD) system has been suggested which was to produce drinking water by adding the proper treatment processes and setting up the proper operational mode. This study aimed to evaluate stable regular monitoring results from a pilot RFD system at a local hospital in Vietnam. Water quality and quantity were monitored by the trained local operator on a quarterly and weekly basis. The raw dataset was then shared with the study team by uploading into an open data access platform, from where the technical support was provided to prevent the provision of unsafe water to users. Ultimately, employing systematic monitoring would help to enhance the resilience of the RFD system, contributing to resolving the drinking water issue in rural areas of developing countries, aiming at the achievement of the Sustainable Development Goal 6.

Rainwater harvesting solar pasteurization treatment systems for the provision of an alternative water source in peri-urban informal settlements

2018 ◽  
Vol 4 (2) ◽  
pp. 291-302 ◽  
Author(s):  
Brandon Reyneke ◽  
Thomas Eugene Cloete ◽  
Sehaam Khan ◽  
Wesaal Khan
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Microbial Contamination ◽  
Rainwater Harvesting ◽  
Informal Settlements ◽  
Water Source ◽  
Urban Informal Settlements ◽  
Alternative Water

Solar pasteurization systems are able to reduce microbial contamination in rainwater to within drinking water guidelines and thereby provide households in informal settlements and rural areas with an alternative water source.

Characteristics of Ion Release from Building Materials during Rainwater Harvesting

2014 ◽  
Vol 955-959 ◽  
pp. 3522-3528
Author(s):  
Jian Feng Zhang ◽  
Ya Xiong Deng ◽  
Zhan Qin Lei ◽  
Wei Xie
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Rural Areas ◽  
Building Materials ◽  
Rainwater Harvesting ◽  
Chinese Government ◽  
Ion Release ◽  
Water Ph ◽  
Materials Used

In the past two decade, the Chinese government has paid a huge effort to solve the problem of drinking water in remote rural. As an alterative success case, rainwater harvesting and utility has been the most efficient way to supplying fresh water in rural areas of the Loess Plateau, a typical water resources serious shortage area in China. Focused on improving the quality of the rural village cistern water, study about the characteristics of ion release from building materials during runoff process with five representative materials used for rainwater collection: concrete, red brick, grey tile, red tile and soil was conducted. The ion releasing process and following effect on cistern water quality index, such as hardness, pH, conductivity, has been analyzed. Results revealed that the most release strength of different materials was arriving at 30s following startup. Furthermore, the test of effects of rain acidity on ion release procession showed that the total ion release increased with storm water pH declining, however, the release strength was irrelevance with runoff’s pH. Based on research results, a detailed suggestion was provided to renovate intake construction of cistern for improving the drinking water quality in remote rural areas of Weibei Semi-arid District.

Mapping of rainwater harvesting potential derived from building data-based hydrological models through the case study of Szeged, Hungary

2021 ◽  
Author(s):  
Ákos Kristóf Csete ◽  
Ágnes Gulyás
Keyword(s):  
Climate Change ◽  
Drinking Water ◽  
Spatial Data ◽  
Rainwater Harvesting ◽  
Water Cycle ◽  
Climate Extremes ◽  
Green Roofs ◽  
Local Planning ◽  
Harvesting Systems ◽  
Decision Making Processes

<p>Urban water cycle suffers from ever increasing problems for what a modern city needs to prepare. The water cycle of most cities is not implemented in a sustainable way, which needs to be redesigned as a result of climate change. Through the climate change more extreme weather situations are expected to affect the life of cities. From aspect of the water cycle, this means extremely unequally distributed rainwater supply throughout the year. During drought periods, urban vegetation requires irrigation, often covered by cities with drinking water, a practice widely considered to be unsustainable. Therefore, finding appropriate methods and resources is crucial, in order to reduce the exposure of cities to the increasing climate extremes.</p><p>By collecting large amounts of rainwater and using it as irrigation water during droughts, it is possible to avoid the unnecessary waste of drinking water and to help preserve its limited supply in the future. A significant amount of precipitation flows through the surface of urban micro-catchments (e.g. roofs or other building surfaces), a significant part of which leaves the city through the sewer system without any usage.</p><p>The aim of our research is to create a rainwater harvesting potential map based on a building database in the study area of Szeged, Hungary. We used this building database to estimate the amount of rainwater that flows or evaporates on the top of buildings during a year, as well as the amount that can be considered as potentially collectable water. In addition to the GIS data, a complex meteorological database was also used.</p><p>The study was carried out in the EPA SWMM model. The building database contains nearly 20,000 building polygons, of which nearly every single polygon represents a separate catchment for this research. Based on the database, it is also possible to separate slope/pitched roof and flat roofs, which also allowed us to determine which roofs have the potential to be used as a green roofs to further facilitate efficient rainwater harvesting. Our result can be used to produce both city- and district-level (downtown, housing estate, garden house zones) summaries about the rainwater harvesting possibilities within Szeged. These results can be used to delineate areas where harvesting systems can be realistically installed. In addition to the spatial data, we can also acquire information on the seasonal distribution of the precipitation and thus the amount of collected water which can be used in drought periods.</p><p>Through our results we can get estimate the volume of rainwater that can be potentially collected from the surfaces of the building in Szeged. We believe, that our research may encourage urban planners to make into greater account the potential of rainwater storage in the local planning processes. This can greatly contribute to the decision-making processes at the local levels, and to the expansion of the knowledge related to green space-based integrated urban infrastructure management.</p>

Drinking Water Supply Options in Arsenic and Salinity Affected Areas of Bangladesh: A Case Study

2021 ◽  
Vol 12 (1-2) ◽  
pp. 215-223
Author(s):  
MA Rahman ◽  
MA Ali ◽  
T Ahmed ◽  
ME Habib ◽  
MS Hossain
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Rainwater Harvesting ◽  
Service Providers ◽  
Iron Chloride ◽  
Drinking Water Supply ◽  
Aquifer Recharge ◽  
High Concentration ◽  
Groundwater Arsenic ◽  
Harvesting Systems

Widespread groundwater arsenic contamination in south, south-western and north-eastern regions and high salinity in the south-western coastal region are the two major challenges for drinking water supply in Bangladesh. In this study, we assessed various water supply technologies used for mitigating arsenic and salinity in Laksam of Cumilla and Assasuni of Satkhira district. Water samples were analyzed for Arsenic, Iron, Chloride (indicator for salinity) and FC from different water extraction systems (shallow, deep and Tara tubewells), groundwater arsenic treatment units (SIDKO and READ-F), rainwater harvesting systems (RWH), pond sand filters (PSF), and managed aquifer recharge units. Most shallow tubewells, both in Laksam and Assasuni, have been found to produce arsenic contaminated water. But water from deep and Tara tubewells have been found arsenic-free, though high concentration of iron was observed in the wells in Laksam. Rainwater harvesting systems, PSF and MAR units in Assasuni have been found to provide water free from the common chemical contaminants but suffer from high bacterial contamination. Deep tubewell appear to be the most preferred option where a suitable aquifer is available. The community-scale groundwater treatment systems would require strong operation and maintenance support from the service providers to be successful. Environ. Sci. & Natural Resources, 12(1&2): 215-223, 2019

scholarly journals When behavior change fails: evidence for building WASH strategies on existing motivations

2016 ◽  
Vol 6 (2) ◽  
pp. 287-297 ◽  
Author(s):  
Lia Marshall ◽  
Jessica Kaminsky
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
Sustainable Management ◽  
Self Esteem ◽  
Motivation To Learn ◽  
Sustainable Development Goal ◽  
The Sustainable Development ◽  
Sustainable Solutions ◽  
Starting Point ◽  
Local Stakeholders

Despite increased efforts, an estimated 30–40% of rural drinking water initiatives in developing countries fail to provide sustainable solutions. The Sustainable Development Goal for water (SDG 6) challenges us to solve this problem to ensure availability and sustainable management of water and sanitation for all. In this paper, we explore one possible barrier to success: a potential misalignment between local and outside motivations. We address this problem by analyzing how strategies used to successfully (n = 148) and unsuccessfully (n = 70) deliver drinking water to rural areas align with known motivations of local stakeholders. As one tool and starting point, we use definitions in Maslow's theory of motivation to learn and share how to more consistently and successfully build comprehensive motivations into solutions. The results reveal that successful strategies rarely focus on physiological needs (2/148) and often focus on higher-level needs, including self-esteem (75/148), love and belonging (46/148), and safety (69/148). Successful strategies also typically address multiple needs and are designed to meet the actualization (fulfill potential) of both communities and donors. Unsuccessful strategies focus on needs of outside stakeholders above local stakeholders (46/70), fail to address higher-level or multiple needs, and/or unsuccessfully address existing needs.

Quality and suitability of harvested rainwater for drinking in Bangladesh

2010 ◽  
Vol 10 (3) ◽  
pp. 359-366 ◽  
Author(s):  
Md. Rezaul Karim
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Rainwater Harvesting ◽  
Quality Parameters ◽  
Drinking Water Supply ◽  
Supply Source ◽  
Drinking Water Standard ◽  
Guideline Values ◽  
Harvesting Systems ◽  
Who Guideline

Several programs have been undertaken during the last few years to install rooftop rainwater harvesting systems as an alternative drinking water supply source both in the coastal and arsenic affected areas in Bangladesh. In this study, quality of the harvested rainwater used for drinking water supply was assessed. A total of 308 harvested rainwater samples were collected from the different storage reservoirs located both in coastal and arsenic affected areas and analysed for various physical, chemical and microbial indicators. Most of the physical and chemical water quality parameters were well below the Bangladesh Drinking Water Standard and WHO guideline values. However, the harvested rainwater was found microbiologically contaminated to some extent and the water is not suitable for consumption without treatment. For safe and sustainable rainwater harvesting, WHO guideline and water safely plan (WSP) can be adopted in Bangladesh.

Social capacities in fostering water supply resilience in Vanuatu

2019 ◽  
Vol 28 (5) ◽  
pp. 706-720
Author(s):  
Behrooz Balaei ◽  
Suzanne Wilkinson ◽  
Regan Potangaroa
Keyword(s):  
Water Supply ◽  
Rural Areas ◽  
Rainwater Harvesting ◽  
Water Shortages ◽  
Content Type ◽  
Wind Speeds ◽  
The Social ◽  
Harvesting Systems ◽  
High Level ◽  
The Village

Purpose In March 2015 Vanuatu experienced Tropical Cyclone (TC) Pam, a category 5 cyclone with estimated wind speeds of 250 kph and one of the worst disasters in Vanuatu’s history. Prior to the cyclone, one-third of water in Vanuatu was collected by means of rainwater harvesting systems; around one quarter of these systems were damaged due to the cyclone and no longer functional. The purpose of this paper is to investigate social and organisational complexities in the resilience of water systems in Vanuatu following TC Pam, focussing on rural areas. Design/methodology/approach The resilience of water supply in rural responses to TC Pam was examined using the three following approaches: review of existing documents, a case study of a village and interviews with specialist local and international non-governmental organisation staff working in Vanuatu. Findings People’s reaction to the cyclone and its consequences at the village or community level in Vanuatu was impressive. The capacity of the locals, their involvement in the community and the low level of violence and high level of trust within society contributed to a quicker water supply restoration than expected. Despite severe shortages of water in some areas due to physical vulnerability of the system, the communities dealt with the issue calmly and the country did not experience any chaos due to water shortages. Originality/value The research results provide a benchmark for planners and decision makers in the South Pacific based on the social, organisational and technical dimensions of rural areas in Vanuatu that can be generalised to other countries in the region. This study also recommends potential tools to improve assessment of the role of social capital in fostering water supply resilience.

scholarly journals Assessment of rainwater harvesting and maintenance practice for better drinking water quality in rural areas

2021 ◽  
Author(s):  
Dung A. Dao ◽  
Son H. Tran ◽  
Huyen T. T. Dang ◽  
Viet-Anh Nguyen ◽  
Viet Anh Nguyen ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Rural Areas ◽  
Rainwater Harvesting ◽  
Water System ◽  
Water Reservoir ◽  
Drinking Water Quality ◽  
P Value ◽  
Operation And Maintenance ◽  
The Impact

Abstract In many areas of the world, rainwater has been collected and consumed by people. Our research aims to assess the use of rainwater and the impact of operation and maintenance activities of the rainwater system on drinking water quality in rural areas where there is no access to a public drinking water system. Through the questionnaire, direct visits, interviews and sampling of water at surveyed households (HHs), it was found that 100 and 98% of surveyed HHs used rainwater for drinking and cooking, respectively. Nearly, 80% of them were aware of the necessity of frequent reservoir cleaning as well as first-flush removal. Cleaning the water reservoir had a significant impact on water quality, in particular the total dissolved solids (p-value < 0.05). The use of strainers and more frequency of cleaning the catchment roofs and gutters would make the lower turbidity in water. However, the use of strainers would reduce the dissolution of oxygen in the reservoirs. A recommendation on the frequency of maintaining the rainwater harvesting systems was proposed after assessment of the operation and maintenance behaviors at surveyed HHs.

scholarly journals Water Conservation in Nepal

2021 ◽  
Vol 1203 (2) ◽  
pp. 022121
Author(s):  
Shannon Sanders McDonald ◽  
Monica Sharma
Keyword(s):  
Drinking Water ◽  
Water Conservation ◽  
Rainwater Harvesting ◽  
Water Security ◽  
Building Design ◽  
Research Literature ◽  
Annual Rainfall ◽  
Rain Gardens ◽  
Harvesting Systems ◽  
Sport And Recreation

Abstract Since the last decade, Kathmandu has been immensely crowded by many populations migrating from different places. One of the significant issues in Kathmandu valley today is water management. Nepal is considered the second most prosperous country for water in the world. Despite this, 8.4% of the population of Nepal (2015) do not have access to safe drinking water. Nepal has a high annual rainfall of 1200 millimeters but still faces substantial challenges in ensuring water security. The primary purpose of the new design for the Sport and Recreation Centre project is to conserve the water by reuse, recycling, and systematic utilization of water to create a sustainable water-efficient building and site. The research literature indicates the feasible way to fulfil water needs is by using rainwater harvesting systems in the center. Nepal historically has had rajkulos, canals, human-made ponds and sunken water conduits which are among the oldest techniques of maintaining the water supply. In the Sport and Recreation Centre, historic design techniques have been combined with rain gardens, ponds for groundwater recharge, pervious pavements, and grate inlets to manage the stormwater on the site. Also, treating the greywater through the Reed Bed Treatment System can help and conserve water for the site and project. In the landscape design, specific native plants will be used that conserve water. The buildings will have low flush and composting toilets, sensor taps, rainwater collections, and use. Overall, with the conservation of water on the site and creating a water-saving building design, this can be one of the most effective ways to promote other public buildings to do the same. The people can have adequate residential drinking water. This can help to reduce the scarcity of water in society and teach us to use rainwater and greywater more efficiently in all future new projects.

scholarly journals Rainwater for drinking in Vietnam: barriers and strategies

2019 ◽  
Vol 68 (7) ◽  
pp. 585-594 ◽  
Author(s):  
Bui Thi Thuy ◽  
Anh Dung Dao ◽  
Mooyong Han ◽  
Duc Canh Nguyen ◽  
Viet Anh Nguyen ◽  
...  
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Rural Areas ◽  
Rainwater Harvesting ◽  
Low Cost ◽  
Social Barriers

Abstract For many decades in Vietnam, rainwater harvesting has been widely used as a nature-based solution in rural areas, aiming at good-quality drinking water with low cost and little energy. Recently, rainwater for drinking has attracted much attention from the Vietnam government. Furthermore, despite its efforts, the outcomes are not as expected due to local barriers. This paper reviewed rainwater for drinking demonstration projects in some specific areas of Vietnam, with identification of the technical, economic, and social barriers, further suggesting possible overcome strategies. A lesson learnt from this study would be the principle of promoting rainwater for drinking in developing countries, looking forward to sustainability.

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