Rainwater harvesting practices and attitudes in the Mekong Delta of Vietnam

2011 ◽  
Vol 1 (3) ◽  
pp. 171-177 ◽  
Author(s):  
Semra Özdemir ◽  
Mark Elliott ◽  
Joe Brown ◽  
Pham K. Nam ◽  
Vo Thi Hien ◽  
...  
Keyword(s):  
Drinking Water ◽  
Rainwater Harvesting ◽  
Mekong Delta ◽  
Water Source ◽  
Water Sources ◽  
Primary Sources ◽  
Domestic Water ◽  
Major Barrier ◽  
Perceived Safety ◽  
Household Level

Access to safe drinking water is limited in the Mekong Delta region of Vietnam. Rainwater harvesting (RWH) at household level is among the primary sources of drinking water in the region and is widely practiced throughout Southeast Asia. It has recently been increasingly advocated as an alternative or supplemental approach to household water supply. However, relatively little research has been done on current RWH practices and attitudes. We interviewed residents of 619 households in three provinces to understand the current practice of and preferences for rainwater harvesting. We found that rainwater was the most common water source for all domestic activities in the rainy season; however, it was reserved for high-value uses in the dry season. Residents ranked color, perceived safety, smell, taste and reliability of rainwater very highly compared to other water sources. Most households practice daily first-flush and/or boil water before drinking. Storage capacity seems to be a major barrier to RWH providing an adequate supply of domestic water year-round. Because other improved water supplies are not widely available in the rural delta, rainwater harvesting seems to be a promising way to expand access to improved water sources for the residents.

scholarly journals Microbial Dynamics of Biosand Filters and Contributions of the Microbial Food Web to Effective Treatment of Wastewater-Impacted Water Sources

2019 ◽  
Vol 85 (17) ◽  
Author(s):  
Tara M. Webster ◽  
Noah Fierer
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Food Web ◽  
Microbial Communities ◽  
Drinking Water Treatment ◽  
Water Source ◽  
Water Sources ◽  
Microbial Food Web ◽  
Household Level ◽  
Biosand Filters

ABSTRACTBiosand filtration systems are widely used for drinking water treatment, from household-level, intermittently operated filters to large-scale continuous municipal systems. While it is well-established that microbial activity within the filter is essential for the removal of potential pathogens and other contaminants, the microbial ecology of these systems and how microbial succession relates to their performance remain poorly resolved. We determined how different source waters influence the composition, temporal dynamics, and performance of microbial communities in intermittently operated biosand filters. We operated lab-scale biosand filters, adding daily inputs from two contrasting water sources with differing nutrient concentrations and found that total coliform removal increased and became less variable after 4 weeks, regardless of water source. Total effluent biomass was also lower than total influent biomass for both water sources. Bacterial community composition, assessed via cultivation-independent DNA sequencing, varied by water source, sample type (influent, effluent, or sand), and time. Despite these differences, we identified specific taxa that were consistently removed, including common aquatic and wastewater bacteria. In contrast, taxa consistently more abundant in the sand and effluent included predatory, intracellular, and symbiotic bacteria.IMPORTANCEAlthough microbial activities are known to contribute to the effectiveness of biosand filtration for drinking water treatment, we have a limited understanding of what microbial groups are most effectively removed, colonize the sand, or make it through the filter. This study tracked the microbial communities in the influent, sand, and effluent of lab-scale, intermittently operated biosand filters over 8 weeks. These results represent the most detailed and time-resolved investigation of the microbial communities in biosand filters typical of those implemented at the household level in many developing countries. We show the importance of the microbial food web in biosand filtration, and we identified taxa that are preferentially removed from wastewater-impacted water sources. We found consistent patterns in filter effectiveness from source waters with differing nutrient loads and, likewise, identified specific bacterial taxa that were consistently more abundant in effluent waters, taxa that are important targets for further study and posttreatment.

scholarly journals The association between WASH, nutrition, and early childhood growth faltering in rural Cambodia: a cross-sectional risk factor analysis

2021 ◽  
Author(s):  
Amanda Justine Lai ◽  
Ramya Ambikapathi ◽  
Oliver Cumming ◽  
Krisna Seng ◽  
Irene Velez ◽  
...  
Keyword(s):  
Drinking Water ◽  
Regression Models ◽  
Water Source ◽  
Community Level ◽  
Standard Errors ◽  
Drinking Water Source ◽  
Household Level ◽  
Growth Outcomes ◽  
Growth Faltering ◽  
Robust Standard Errors

Background Inadequate nutrition in early life and exposure to sanitation-related enteric pathogens have been linked to poor growth outcomes in children. Despite rapid development in Cambodia, high prevalence of growth faltering and stunting persist among children. This study aimed to assess nutrition and WASH variables and their association with nutritional status of children under 24 months in rural Cambodia. Methods We conducted surveys in 491 villages across 55 rural communes in Cambodia in September 2016 to measure associations between child, household, and community-level risk factors for stunting and length-for-age z-score (LAZ). A primary survey measured child-level variables, including anthropometric measures and risk factors for growth faltering and stunting, for 4,036 children under 24 months of age from 3,877 households (approximately 8 households per village). A secondary survey of 5,341 households, including the same households from the primary survey and an additional 1,464 households (approximately 3 additional household per village) from the same villages, assessed village-level WASH variables to understand community water, sanitation, and hygiene (WASH) conditions that may influence child growth outcomes. For LAZ, we calculated bivariate and adjusted associations (as mean differences) with 95% confidence intervals using generalized estimating equations (GEEs) to fit linear regression models with robust standard errors. For stunting, we calculated unadjusted and adjusted prevalence ratios (PRs) with 95% confidence intervals using GEEs to fit Poisson regression models with robust standard errors. For all models assessing effects of household-level variables, we used GEEs to account for clustering at the village level. Findings After adjustment for potential confounders, presence of water and soap at a household's handwashing station was found to be significantly associated (p<0.05) with increased LAZ (adjusted mean difference in LAZ +0.10, 95% CI 0.03 to 0.16), and household use of an improved drinking water source was associated with less stunting in children compared to households that did not use an improved source of drinking water (aPR 0.81, 95% CI 0.66 to 0.98); breastfeeding and community-level access to an improved drinking water source were associated with a lower LAZ score (-0.16, 95% CI -0.27 to -0.05; -0.13, 95% CI -0.26 to 0.00). No other nutrition (i.e., dietary diversity, meal frequency) or sanitation variables (i.e., household's safe disposal of child stools, household-level sanitation, community-level sanitation) were measured to be associated with LAZ scores or stunting in children under 24 months of age.

scholarly journals Self-Supply Service Level Assessment as Drinking Water Source in Bekasi City (Case Study: Jatiluhur, Sumur Batu, and Jatirangga Villages)

2021 ◽  
Vol 277 ◽  
pp. 04004
Author(s):  
Aprilia Harera ◽  
Gita Lestari Putri ◽  
Tim Foster
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Service Level ◽  
Water Systems ◽  
Water Sources ◽  
Drinking Water Source ◽  
Monitoring Method ◽  
Dug Wells ◽  
Monthly Survey

Drinking water sources derived from groundwater using selfsupply approaches are widely used in Bekasi City because only 26.8% of households are connected to the piped distribution. These self-supplied water systems can be assessed to determine how people choose a better drinking source. Therefore, this study aims to assess the service level attributes of self-supply, including accessibility, availability, and quality. A longitudinal monitoring method by means of a monthly survey to respondents was used to mens perceptions of taste, smell, color, availability, and safety. The results on both household and citywide scale showed boreholes were perceived to deliver a high service level. On the household scale, 93% of boreholes user got ‘high’ score for water service assessment, while dug wells were only 76%. During the 8 months survey, it was shown that 45% of respondents change their main source of drinking water from self-supply to other source for several reasons. Therefore, this study is expected to provide an overview related to the resilience of selfsupply drinking water for a certain period.

scholarly journals Microbiological water quality in a decentralized Arctic drinking water system

2020 ◽  
Vol 6 (7) ◽  
pp. 1855-1868
Author(s):  
Stephanie L. Gora ◽  
Tim Anaviapik Soucie ◽  
Nicole E. McCormick ◽  
C. Carolina Ontiveros ◽  
Vincent L'Hérault ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water System ◽  
Arctic Region ◽  
Water Source ◽  
Domestic Water ◽  
Point Of Use ◽  
System P ◽  
Drinking Water System ◽  
Microbiological Water Quality ◽  
Drinking Water Samples

Drinking water samples were collected from the water source, water delivery truck, domestic water storage tanks, and at the point of use in a decentralized drinking water system in Pond Inlet, Nunavut, a predominantly Inuit community in Canada's Arctic region.

scholarly journals Analysis Of Raw Water Supply In Pucang Gading Housing Complex, District Of Demak To Preparation Of Water Resources And Water Resources Management

2018 ◽  
Vol 73 ◽  
pp. 03012
Author(s):  
Solikhul Abdi ◽  
Sudarno
Keyword(s):  
Drinking Water ◽  
Water Resources ◽  
Water Supply ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Water Source ◽  
Water Sources ◽  
Service Area ◽  
Raw Water ◽  
Housing Complex

Pucang Gading Housing Complex is an area within the Village Batursari, District of Demak with a population of 2018 as many as 44,257 inhabitants. Raw water service system Mranggen Unit is divided into 5 areas of service (service area Mranggen, Batursari I, Batursari II, Batursari III and Kebon) which utilize raw water source of water treatment plant (IPA Waru) and 8 Wells In a total discharge of 120 liter/second. The number of home connections in Pucang Gading area is currently 3,374 house connections, with a total water usage 14.25 liter/second Water discharges from clean water sources in Pucang Gading region are currently not maximally available to supply water to Pucang Gading service area. In this research will know the problems and readiness that exist by looking from the achievement of Medium Term Development Plan of Demak Regency Year 2016-2021. This research uses SWOT analysis method that is internal and external factors. The selection of raw water sources for drinking water should pay attention to aspects of quality, quantity and continuity. Demak Regency has the potential of surface water either river/ reservoir/dam. The problems and challenges of drinking water supply include issues of safe access to water supply, and regulation of groundwater utilization for the community.

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.

scholarly journals KARAKTERISTIK RUMAH TANGGA PENGGUNA AIR MINUM KEMASAN DAN ISI ULANG DI INDONESIA

2019 ◽  
Vol 17 (3) ◽  
pp. 155-164
Author(s):  
Elsa Elsi ◽  
Sahat P Manalu ◽  
Dasuki Dasuki ◽  
Aria Kusuma
Keyword(s):  
Drinking Water ◽  
Travel Time ◽  
Water Source ◽  
Water Sources ◽  
Bottled Water ◽  
Drinking Water Source ◽  
Clean Water ◽  
Cross Sectional ◽  
Source Characteristics ◽  
Drinking Water Sources

ABSTRACT One of SDG's 2030 targets is that households have access to drinking water. The phenomenon is some of community use bottled water/refill as drinking water. The aim of this article are knowing household proportion with improve clean water source and water collecting time that use bottled water/refill drinking water, and relation of clean water source characteristics with using bottle/refill drinking water. Research design is cross sectional. Dependent variable is household drinking water sources type, independents are household clean water source characteristics, and travel time collecting water. Bivariate data analysis was carried out to analyze the relationship between the proportion of bottled / refilled water users by households with adequate water sources and households that use inappropriate water sources. The results showed that proportion of households with unimproved drinking water sources, unimproved clean water source and unimproved water collecting time are greater using bottled/refill  drinking, each (7,6%) and (26,7%). There are statistic significances relation between household with unimproved drinking water source, unimproved travel time collecting water with using bottled/ relill drinking water (p = 0,000). Also found statistic significances between household with improved drinking water source, unimproved clean water source and unimproved travel time collecting water with using bottled/ relill drinking water (p = 0,000). Keywords: Bottled water, refill drinking water, improved water   ABSTRAK Salah satu target SDG’s 2030 adalah rumah tangga memiliki akses terhadap air minum. Sebagian masyarakat menggunakan air minum kemasan/ isi ulang sebagai air minum. Artikel ini bertujuan untuk mengetahui karakteristik pengguna air minum kemasan/isi ulang sebagai sumber air utama. Desain penelitian adalah potong lintang. Variabel terikat adalah jenis sumber air minum rumah tangga, sedangkan variabel bebas terdiri dari karakteristik sumber air utama dan waktu yang diperlukan untuk mengambil air. Analisis data secara bivariat dilakukan untuk menganalisis hubungan antara proporsi pengguna air minum kemasan/isi ulang oleh rumah tangga dengan sumber air layak dengan rumah tangga yang menggunakan sumber air tidak  layak.  Hasil menunjukkan bahwa proporsi pengguna air minum kemasan/isi ulang oleh  rumah tangga dengan sumber air minum yang belum layak  lebih tinggi diibandingkan dengan rumah tangga dengan sumber air minum layak, yaitu masing-masing (7,6%) dan (26,7%). Terdapat hubungan bermakna antara rumah tangga dengan sumber air minum belum layak, dengan waktu tempuh pengambilan air belum layak terhadap penggunaan air minum kemasan/ isi ulang (p=0,000).  Pada rumah tangga dengan  sumber air minum layak, sumber air utama belum layak dan waktu pengambilan belum layak juga ditemukan hubungan bermakna secara statistik terhadap penggunaan air minum kemasan/ isi ulang (p=0,000). Kata kunci: Air kemasan, air minum isi ulang, air layak

scholarly journals Fluoride Exposure through Different Drinking Water Sources in a Contaminated Basin in Guanajuato, Mexico: A Deterministic Human Health Risk Assessment

2021 ◽  
Vol 18 (21) ◽  
pp. 11490
Author(s):  
Paulina Farías ◽  
Jesús Alejandro Estevez-García ◽  
Erika Noelia Onofre-Pardo ◽  
María Luisa Pérez-Humara ◽  
Elodia Rojas-Lima ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risks ◽  
Dental Fluorosis ◽  
Water Source ◽  
Water Sources ◽  
Drinking Water Source ◽  
Drinking Water Sources ◽  
Fluoride Exposure ◽  
Urinary Fluoride ◽  
Water Fluoride

Water fluoride levels above the World Health Organization’s guideline (1.5 mg/L), common in overexploited aquifers, represent a health hazard. Our objective was to assess the health risks posed by exposure to fluoride in different drinking water sources in a contaminated basin in Mexico. Fluoride was measured in mutual drinking water sources and in the urine of 39 children and women. Risks were estimated through hazard quotient (HQ) by drinking water source. Dental fluorosis was assessed in the children. Mean fluoride water concentrations (mg/L) were: well, 4.2; waterhole, 2.7; bottled, 2.1; rainwater, 0.4. The mean urinary fluoride concentrations (specific gravity adjusted) were 2.1 mg/L and 3.2 mg/L in children and women, respectively. Our multiple linear regression model showed children’s urinary fluoride concentrations increased 0.96 mg/L for every 1 mg/L increase in water fluoride (p < 0.001). Dental fluorosis was diagnosed in 82% of the children, and their HQ according to drinking water source was: well, 1.5; waterhole, 1.1; bottled, 0.8; harvested rainwater, 0.3. The pervasive dental fluorosis indicates a toxic past fluoride exposure; urinary fluoride levels and HQs indicate high exposure and current health risks for most children. Drinking harvested rainwater will likely prevent most of the local fluoride exposure.

scholarly journals Evaluation of Drinking Water Needs in Wae Decer, Manggarai Regency, Nusa Tenggara Timur Province

2019 ◽  
Vol 2 ◽  
pp. 343-348
Author(s):  
Rr Diah Nugraheni Setyowati ◽  
Rahmad Junaidi ◽  
Efa Suriani
Keyword(s):  
Drinking Water ◽  
Universal Access ◽  
Water Source ◽  
Water Sources ◽  
Public Works ◽  
Clean Water ◽  
The Difference ◽  
Supply Capacity ◽  
Quantitative Descriptive

Drinking water is a basic need for humans. The provision of drinking water throughout Indonesia is an obligation that has been stated in UUD 45. Based on the Bappenas study with the Ministry of Public Works, universal access to drinking water is targeted to reach 84,8% nationally. Then, this universal access must increase to 92,2% in 2018. In the end, access to drinking water for the community in 2019 is 100%. Based on this description, every region in Indonesia must have universal access to proper drinking water. Manggarai Regency is one of the districts that will alleviate the problem of universal access to drinking water. Existing water sources in Manggarai Regency are in various locations of hills and mountains. This water source is a source of water that can be used as a source of drinking water. Based on the study of SPAM Master Plan, residents of Manggarai Regency who have had access to adequate drinking water are 57.61%. The percentage value is still below the threshold of decent MDGs in 2015 which is 68%. Considering that the target of fulfilling universal access to drinking water in 2019 is 100%, it is necessary to have a major breakthrough in drinking water supply in Manggarai Regency. One way that needs to be done is to evaluate the drinking water needs. Based on the results of a field survey, Manggarai District has the potential of drinking water sources of 150 Lps, water has been utilized by 30 Lps and the services to be developed are 40 Lps. The method used in this research is quantitative descriptive method. The results of the analysis obtained from the study on the evaluation of drinking water needs are long-term drinking water needs in 8 (eight villages), the capacity of clean water from Wae Decer water spring cannot supply drinking water by 2029. In 2028, the remaining clean water capacity from MA. Wae Decer only has 0.16 liters per second. If Wae Decer SPAM wants to be extended to 2037 according to long-term planning, then in 2018 the required supply capacity is 48,15 liters per second. The difference of 8,15 liters per second can be taken from Wae Decer which still has the remaining idle capacity of 77 liters per second in 2037. This capacity can be used for the development of drinking water reaching other villages that intersect with the DED Wae Decer system and or added from source of springs adjacent to Wae Decer clean water network.

scholarly journals Determination of Radon-222 in Natural Drinking Water Sources in Outskirts of Yekaterinburg

2014 ◽  
pp. 95-101
Author(s):  
Keyword(s):  
Drinking Water ◽  
Specific Activity ◽  
Tap Water ◽  
Water Source ◽  
Water Sources ◽  
Drinking Water Source ◽  
Drinking Water Sources ◽  
Radon Content

Analysis of the 222Rn specific activity in water of three springs situated in Western outskirts of Yekaterinburg, out of the well that is the main drinking water source in the Palkinsky Torfyanning community, as well as the Yekaterinburg tap water has been carried out. Assessment of the radon content fluctuations over the period from January to November, 2013 in water of one of the sources under study has been done.

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