Piped Water Supply Research Articles

Informality in Urban Water Supply: A Case of Tambaklorok, Semarang

Significant population growth in urban areas faces limited access to water supply. In 2015, 29% of the global population lacked safely managed drinking water supplies. Ensuring universal access to safe and affordable drinking water for all by 2030 becomes the sixth goal in SDGs 2030. The government’s inability to provide water supply has led to the emergence of informality in urban water supply. Tambaklorok located in the northern part of Semarang has been relying on informal practices to fulfill its water need. From this phenomenon in Tambaklorok, the practice of informality continues to be produced through the particular factors other than the physical availability of a network. This research aims to analyze informality in urban water supply in Tambaklorok, Semarang. To carry out this aim, the method that will be used is a combination of quantitative and qualitative methods. This research found that informality in urban water supply in Tambaklorok caused by lack of access to networked pipe water supply, water utility roles, and practices in non-networked pipe water supply. The research recommended the alternative scheme of water supply for the community in Tambaklorok.

Village Sanitation System for Village

Sanitation is important of few years development goals which covers the important aspects of management of human excreta, domestic and industrial wastewater and hazardous substances .Hence, this project focuses on a selected rural area to plan a suitable water supply scheme in accordance with their demands and requirements. It hasnt be feasible to cover all villages with piped water supply because of various constraints such as Scattered and inaccessible nature of villages, Nonavailability of nearby water sources. The project also covered planning of facilities to maintain better sanitation and beautification of surrounding .Water is important and precious as it fulfils the basic necessity of life. It is necessary that the water used must be good and free from unwanted impurities or harmful toxic chemical compounds or bacteria More than 80 % of Indian population lives in rural areas, but only few of them have some form of potable water supply. It hasn’t be feasible to cover all villages with piped water supply because of various constraints such as Scattered and inaccessible nature of villages, Non- availability of nearby water sources.

Future perspectives and mitigation strategies towards groundwater arsenic contamination in West Bengal, India

Arsenic is a toxic carcinogen mostly found in subsurface environments. It is released into groundwater mostly via natural geological and hydrological processes. Consumption of such contaminated water leads to serious health crises for mankind. Developing countries in South Asia, particularly the rural regions, have been severely affected by this environmental phenomenon. In India, government authorities have implemented several remedial measures to provide safe drinking water to the rural habitations, ranging from utilization of surface water bodies (e.g., rivers, ponds, etc.) for piped water supply schemes and establishment of groundwater treatment units. This article attempts to review the scientific literature describing the critical situation in India's fourth most populous state of West Bengal and the engineering advances made in the mitigation. The issue of safe disposal or stabilization of arsenic wastewaters generated from the treatment units is often not emphasized in policy discussions. In a concluding note, this article proposes innovations necessary for achieving effective arsenic mitigation in the region that involve both groundwater remediation and waste management in tandem for sustainability.

OPTIMIZATION OF HEAT SUPPLY AND WATER SUPPLY SYSTEMS FOR REMOTE RURAL REGIONS

The problems of providing various types of energy to remote isolated settlements, territorial and climatic features consideration are reviewed, a three – pipe water supply system, a technology working on solid fuel for heat and electricity supply adapted to the conditions of a particular village are proposed. The use of the proposed methods of supply will reduce the cost of electricity, heat, water and gaseous fuel. Which will be quite acceptable for families with medium and small incomes. The described technology for producing gas with an acceptable calorific value is based on partial heat treatment of coal. The presence of gaseous fuel allows you to transfer cooking to the supply of fuel from a single.

Chikungunya and COVID‐19 in Brazil: The danger of an overlapping crises

It is already widely known that the COVID-19 pandemic has added a heavy burden to the health care system in different parts of the world. In Brazil, the situation was no different. The uncontrolled increase in the contagion curve of the disease has tested the limits of the country's health system. This situation is aggravated by the coexistence of an outbreak of Chikungunya, which affects mainly the most vulnerable groups in the country. The overlap of these two crises can be a dangerous combination if urgent measures are not taken. This article is protected by copyright. All rights reserved.

Local water resource management through stakeholder participation: case study, arid region, India

Abstract Access to clean water is important for socio-economic development worldwide. Bhuj, in an arid region in Gujarat State in India, has an ancient and unique water resource management system. The city's visionary king developed a catchment system of lakes so that, despite minimal rainfall and frequent droughts, sufficient water could be stored to sustain the city for around 300 years. However, over the years, with rapid urbanization and the introduction of a piped water supply, this ancient supply system was abandoned and was not maintained well. As a result, the city's water resources became polluted and defunct, which forced it to depend on distant water sources. This study shows how the city's water management strategies changed before independence (1947), and pre-earthquake (1947–2001) and post-earthquake (2001 to present). The paper mainly documents how the city's own water resources can be managed successfully by following the concepts of IUWM through effective stakeholder participation, to make the city water-secure.

Large Summer Rainfall Events and Their Importance in Mitigating Droughts over the South Western Cape, South Africa

AbstractAlthough the south Western Cape receives most of its rainfall between May and September, there are substantial rainfall events in some summers. These events are of interest in themselves as well as for their possible role in mitigating the frequent winter droughts that the region suffers from. Most recently, greater Cape Town suffered a devastating drought during 2015–18 known as the Day Zero drought due to the high risk of urban areas running out of piped water supply. Estimated data from the city show that major dam levels in the south Western Cape increased more than 1% in some cases after large rainfall events (LREs) in the summer of 2018/19. This increase is significant as dam levels often decrease by several percent per month during the hot summer. In this study, LREs over the south Western Cape during the summer (October–March) are investigated together with dam level data. Most summer LREs result from atmospheric rivers (ARs) or cutoff lows (COLs). ARs have not been previously studied in the South African region except for one study for winter that showed they are responsible for almost all the heavy rainfall events in the Western Cape. Although COLs are most common in the transition months, they can also occur in midwinter and summer. COLs tend to last longer and cover larger areas than ARs, which typically yield relatively short bursts of intense rainfall mostly concentrated around greater Cape Town. After each summer LRE, average dam levels increase by up to 5%, suggesting they are very important for drought recovery. In particular, summer LREs following the anomalously dry winters of 1980, 1984, 2003, 2004, and 2015–18 played an important role in mitigating those droughts.

The Role of Psychological Ownership in Safe Water Management: A Mixed-Methods Study in Nepal

Long-term management and use of community-based safe water systems are essential to reduce water-related health risks in rural areas. Water sector professionals frequently cite water users’ sense of ownership for the water system as essential for its continuity. This study aims to provide the first insight into users’ understanding of psychological ownership, as well as generalizable data, regarding safe water management in rural Nepal. In this convergent mixed-methods study, we conducted 22 qualitative and 493 quantitative interviews with community members in five districts of Nepal, where spring-fed piped water supplies were previously implemented through a demand-led, participatory planning approach. We analyzed the qualitative data by thematic analysis and modeled quantitative routes to and consequences of psychological ownership in generalized estimating equations. Findings from qualitative and quantitative analyses converged to show that community members’ decision-making, investment of labor and money, and knowledge about the water system were associated with greater psychological ownership. Psychological ownership was related to greater acceptance and responsibility for maintenance and use, as well as greater confidence in functionality of the water system, but not to its actual functionality. The results highlight the potential of psychological ownership and community participation for the longevity of community-based safe water infrastructure.

The role of piped water supplies in advancing health, economic development, and gender equality in rural communities.

In rural areas of sub-Saharan Africa, one in eight households obtain drinking water from a piped system; the rest fetch water from improved and unimproved sources located at some distance from their homes. This task falls primarily to women and girls, creating time poverty and risks to safety and health. In this paper, we present a conceptual model that elaborates the mechanisms linking access to piped water with food security and long-term economic impacts. These hypotheses were tested in a quasi-experimental study of four villages in rural Zambia using a combination of household surveys, Global Positioning System transponders, and water meters to measure time spent fetching water, water consumption, and how water was being utilized for domestic and productive activities. Households receiving the piped water intervention spent a median of 3.8h per week less fetching water, savings that accrued primarily to women and girls. Household water consumption increased 32%, which was used for both domestic and productive uses. Increases in the frequency of gardening and the size of garden plots in treatment households were observed. Households receiving piped water reported being happier, healthier, and having more time to participate in work inside or outside the home. We find that piped water supplies can promote the economic development and well-being of rural households, with particular benefits to women and girls, conditional upon pricing and management models that ensure sustainable service.

Achievements and challenges of India's sanitation campaign under clean India mission: A commentary.

Universal access to safe sanitation is yet to be accomplished in India. Although Clean India Mission (named as “Swachh Bharat Mission (Gramin)” for rural India) claims that the sanitation coverage in rural India has increased from 39% to 100% of households from 2014 and 2019, yet open defaecation continues in India in large numbers. This article discusses the achievements on Swachh Bharat Mission (Gramin) and identifies the existing challenges that need to be acted on to achieve the success of India's Swachh Bharat Mission. We searched international database mainly Google scholar, Pubmed, Medline, Scopus, and Science direct using “Clean India,” “Swachh Bharat,” “Sanitation,” “Open defecation,” “Environmental heath,” and “India” as search keywords in different combinations. In addition, websites of relevant United Nations (UN) agencies, Government of India and leading newspaper and national agencies were also searched manually for related publications and reports. In the last 5 years (2014-2019), significant efforts have been made for the Swachh Bharat Mission by creating various social movements and awareness program to improve toilet coverage throughout India. Over 100 million, latrines have been built as of the end of the first phase of Swachh Bharat Mission (Gramin) as on October 2, 2019 and all villages across the districts of India have been declared Open Defaecation Free. Still, nearly half of the rural population (52.1%) defecate in the open. Lack of piped water supply, poor construction of toilet substructures and misconception among people about toilet use remain as key challenges in the achievement of India's sanitation mission. Sanitation-related behavioral change and improvement in toilet facilities must be prioritized to ensure usage of built toilets and eventually can accelerate the universal access to sanitation and meet Sustainable Development Goals.

Risk factors and mitigation measures in public-private water sector partnerships: lessons from the Asutifi North District, Ghana

Abstract Public-private partnerships (PPPs) are promoted as a practical option for developing countries to meet their water sector infrastructure gaps. Despite their appeal, PPP projects have been described as complex and challenging, and the water sector PPPs are particularly associated with high failure rates. Risk analysis and evaluations have been identified as critical to the success of PPPs. In this paper, we examine an on-going PPP arrangement for piped water supply in the Asutifi North District of Ghana under a Build, Operate, and Transfer arrangement. Safe Water Network will provide the supply systems and transfer ownership to the District Authority at the end of the contract. We reviewed key project documents to ascertain the measures that would minimize the likelihood of risk occurring during the project cycle. Of 11 risk factors, 7 were anticipated in the project documents. We recommend that project documents be reviewed and amended to address the unanticipated risks.

Life Cycle Cost of Self-Supply Water in Metro City

Self-supply of drinking water is implemented in areas where the coverage of piped water services is inadequate, low incomes residents, and poor performance of piped water supply. The Life Cycle Cost (LCC) is a method of evaluating all costs incurred and is used to track the financing of the drinking water sector. This study analyses LCC of self-supply water in the Metro City, Indonesia. A field survey was conducted using a questionnaire in October 2020 for households in Metro City that captured information on costs incurred for household water use. It was observed that self-supply water uses in Metro City accounts for 92.86.30% of all water supplies. The average recurrent expenditure is Rp.224,344/ year with mean of capital cost is Rp.275,273. Most expensive cost for self-supply is borehole. High cost of borehole due deeper groundwater source, borehole use more pump electricity and higher drilling cost. This funding for selfsupply water is carried out independently by the households. These results highlighted the importance of self-financing for the water supply sector. Increased reliability and safety of self-supply require a better awareness of the costs and benefits of developing water sources. Furthermore, selfsupply water requires better governance to achieve safe water access.

WATER FLUORIDATION AND ORAL HEALTH IN MALAYSIA: A REVIEW OF LITERATURE

Information regarding water fluoridation (WF) in Malaysia has been substantially documented, but is scattered in various government publications and may be lost to the stakeholders. This paper is a review of water fluoridation in Malaysia and its effect on oral health: a history of WF in Malaysia, the current policy, the evidence of its effectiveness, the challenges and the future directions. A search for relevant physical and electronic documents of WF in Malaysia resulted in the identification of 70 documents for review. WF was gazetted as national policy with an optimal fluoride level of 0.7 parts-per-million (ppm) in 1972, with a reduction of the level to 0.5 ppm in 2005. Evidence showed that WF effectively reduced population dental caries while fluorosis was not a prevalent public health concern. Strong collaboration between stakeholders and the extensive network of piped water supplies resulted in 80% of the population receiving WF in 2013. However, the coverage was reduced to 74.1% in 2018, largely due to the cessation of WF in Pahang. The key challenges in WF included a lack of funding, weak legislation, use of reverse osmosis water filtration system, difficulty to maintaining an optimal level of fluoride in the water, and lack of local data on the impact of WF cessation on oral health, and its cost-effectiveness. This review will provide dental health professionals with scientific evidence on WF and oral health in Malaysia and assist them in answering relevant questions about WF raised by the public.

Epidemiology and predictors of occurrence of SCHISTOSOMA MANSONI infection in a low-endemicity area in northeast Brazil

In Latin America 96% of the cases of schistosomiasis occur in Brazil in low-socioeconomic status populations. The epidemiological characteristics and occurrence predictors of Schistosoma mansoni infection were determined in the Bananeiras community, located in Capistrano, a town in Ceará state, Brazil. Sanitary, environmental, socioeconomic, and behavioral data were collected using a semi-structured questionnaire. An investigation to assess S. mansoni infection was conducted using the Kato-Katz and Point-of-Care Circulating Cathodic Antigen (POC-CCA) methods. From the 258 subjects were analyzed, 54.3% (n=140) were women, median age 30 years. Thirty-three (12.8%) individuals were positive by either egg- and/or CCA-positivity. The highest positivity rate was found in the 30-39 year old group. There was no piped water supply, sewage network or municipal refuse collection service. Most individuals were illiterate or had not finished elementary school (66.3%). About 29.1% of the families had a monthly income below one Brazilian minimum wage and 91.1% reported contact with natural water sources. We found an association between infection and age group of 20-40 years, illiteracy, household with 7 inhabitants or more, household with up to 3 rooms and an outhouse. Contrarily, being 40 years old or older and household with up to 6 inhabitants were not risk factors. Schistosomiasis remains a public health problem in this municipality, evidencing a strong association with low socioeconomic conditions and high vulnerability. These findings reinforce the importance of identifying the factors associated with the infection for more effective guidance in actions in control programs targeting schistosomiasis prevention and control. 
 KEY WORDS: Schistosomiasis; Schistosoma mansoni; epidemiology; predictors; low endemicity;urim antigen.

Assessment of access to water, sanitation and hygiene in rural schools of Central Kazakhstan

Abstract Background The Sustainable Development Goals (SDGs) call for universal coverage and access to drinking water, sanitation and hygiene (WASH) for all by 2030. Access to WASH in schools is one of the priority areas, considering Joint Monitoring Program is lacking the data from many developing countries, particularly, rural areas including Kazakhstan. The aim of the paper is to assess the access to WASH at schools in rural regions of central Kazakhstan. Methods The study was conducted in three rural schools using focus group discussion with school heads, the observation of drinking water and sanitation units, and a questionnaire survey among 166 pupils. All tools cover the set of questions about the availability and the privacy of WASH facilities, accessibility, acceptability to pupils, functionality. Results Results of the study show that the main water source of Algabas and Kerney schools is a centralized piped water supply provided into the school building and 85,91% of pupils from these schools report the uninterrupted availability of water from this source. However, Sartau has its well, and only 51,72% of pupils from this school indicate that water from the main source is continuously available. All toilets are flushing toilets inside of schools and not connected to the centralized sewage system. The maximum number of the toilet is 6 in the Kerney school; however, this amount of toilets is not enough for the number of pupils by the national norms. Majority of pupils (89,15%) report that the school toilets are always available. Nevertheless, 34,87% of pupils indicate no toilet paper as a reason for not using the school toilet. Handwashing facilities are located near the toilets and in classrooms. Only 53,02% have soap available and 42,77% have access to hand drying facilities after handwashing. Conclusions The current study shows rural schools of Central Kazakhstan are not provided with sufficient materials for pupils to manage personal hygiene appropriately. Key messages The study is essential for mapping the situation of WASH in schools. This study provides the baseline data for JMP; consequently, it is crucial to plan the UN SDGs in Kazakhstan.

FACILITATE DECISION MAKING OF OPTIMUM UTILIZATION URBAN ROOFTOP RWH, CASE STUDY KOLKATA METROPOLITAN AREA

The study is done for assessment of Rooftop Rain Water Harvesting (RRWH) for non potable uses in a humid urban catchment. In this study, an user response survey was conducted, with 390 sample size, in five types of building uses; Residential, Educational, Medical, Institutional and mixed use Commercial, with variable roof sizes and situated in four different zones of KMA, having wide variation in piped water supply. A database of 32 years of daily rainfall data has been analyzed , in order to find out demand for different end uses for various building, supply from roof runoff, demand supply ratio, priority of different socio-economic factors for each type of building using AHP analysis, user’s opinion on choice of end-use using regression analysis and finally developed a DSS model. Analysis also revealed that the highest acceptance of RRWH are in favor of the Medical uses building, the lowest being mix-Commercial building. Further factors like toilet flushing is found to be most potential end use options, followed by landscaping and cleaning. The regression model clearly show that the variables like ground condition, scale of development, degree of contact, storey’s of building and water scarcity are key to decision making. KEYWORDS : Roof top Rain Water Harvesting (RRWH), non potable use, Decision support system (DSS), Analytical Hierarchy Process (AHP), End-use potential, Urban Local Bodies (ULB).

Sanitation and Hygiene Practices in Small Towns in Tanzania: The Case of Babati District, Manyara Region.

.Formative research findings from the fast-growing Babati town were used to assess the prevalence of sanitation and hygiene practices among individuals and institutions and associated factors. A cross-sectional study involving household surveys, spot-checks, focus group discussions, in-depth interviews, and structured observations of behaviors showed that 90% of households have sanitation facilities, but 68% have safely managed sanitation services. The most common types of household sanitation facilities were pit latrines with slab (42%) followed by flush/pour flush toilets (32%). Therefore, the management of wastewater depends entirely on onsite sanitation systems. The majority of households (70%) do not practice proper hygiene behaviors. Thirteen percent of the households had handwashing stations with soap and water, handwashing practice being more common to women (38%) than men (18%). The reported handwashing practices during the four critical moments (handwashing with soap before eating and feeding, after defecation, after cleaning child’s bottom, and after touching any dirt/dust) differed from the actual/observed practices. Households connected to the town’s piped water supply were more likely to practice handwashing than those not directly connected. Sanitation and hygiene behaviors of the people in the study area were seen to be influenced by sociodemographic, cultural, and economic factors. The conditions of sanitation and hygiene facilities in public places were unsatisfactory. There is an urgent need to ensure that the sanitation and hygiene services and behaviors along the value chain (from waste production/source to disposal/end point) are improved both at the household level and in public places through improved sanitation services and the promotion of effective hygiene behavior change programs integrated into ongoing government programs and planning.

The third route: Using extreme decentralization to create resilient urban water systems

For much of the world's urban population, centralized treatment plants and pipe networks built in the nineteenth and twentieth centuries provide homes with water and a means of disposing of the resulting wastewater. Due to the real or perceived inability of existing systems to deliver safe and palatable water, many users apply additional treatment prior to consumption. Where piped water supply is lacking, drinking water is obtained through water vendors at considerable cost. Despite economic inefficiencies and public health risks inherent in these two water supply systems, the high sunk costs of existing water infrastructure along with low returns on investment and the inflexible nature of the institutions involved in water provision have slowed down the diffusion of alternative approaches that may prove to be less expensive, more adaptable and safer than the current system. We advocate a third, complementary route: household-based personalized water systems. Initially, relatively affluent people expecting more functionality and sustainability from water systems will invest in personalized water systems that allow them to tailor their water to their personal preferences. This approach will tap into the tremendous creativity-base of individual users and entrepreneurs, facilitating the type of co-creation that accelerated the rapid development of consumer electronics. Competition among manufacturers and economies of scale that accrue as these systems become more popular will lead to rapid innovation that drives down costs, improves performance and expands access. These solutions complement emerging approaches for sanitation and resource recovery that do not rely upon sewers for the management of human waste.

Characterizing Supply Variability and Operational Challenges in an Intermittent Water Distribution Network

Intermittent piped water supply is common in low- and middle-income countries and is inconvenient for users, particularly when supply schedules are unreliable. In this study, supply schedules and operational challenges were characterized in intermittent areas of the Arraiján, Panama distribution network based on one year of pressure and flow monitoring in four study zones, analysis of three years of pipe break data, and observations of system operation. Service quality was found to vary among users and supply schedules were often irregular and unpredictable. Direct causes of unanticipated supply outages included pump failures, chronic pipe breaks in specific parts of the system, transmission main breaks, irregular valve operations, and treatment plant outages. The extent and duration of these outages were often increased by high rates of water loss, insufficient storage capacity, and difficulty detecting and resolving infrastructure failures. Factors associated with intermittent supply, such as intermittent pumping, appeared to be associated with a higher frequency of pipe breaks. However, the analysis did not indicate a strong general correlation between intermittent supply and pipe breaks. Pressure and flow monitoring in intermittent supply areas, similar to that undertaken in this study, could be a valuable tool to improve regular operations as well as longer-term planning and prioritization of system improvements. Water loss reduction and adequate distribution storage capacity could also mitigate the effects of operational failures. Investments in monitoring and data analysis have the potential to improve the reliability of intermittent supply in cases where continuous supply is not immediately feasible.

Assessment of Infrastructure and Logistic at Anganwadi Centers in A Block of Ganjam District, Odisha

Introduction: The ICDS scheme provides a package of services to different groups of the target population. These services are provided through the frontline honorary workers called as anganwadi workers (AWWs). The anganwadi centre (AWC) is the focal point for delivery of these services. Objectives: To assess the infrastructure and logistics at anganwadi centres in a block of Ganjam district. Materials and Method: This was a cross sectional study conducted from October 2016 to October 2018. Multistage random sampling was used to select the AWCs. By using table of random numbers, 24 AWCs were selected out of 239 total AWCs in Chatrapur block. Results: All the AWCs were found to be located within the village. 75% AWCs were functioning in their own buildings. 95.8% AWCs were pucca houses. 54.2% AWCs were hygienic. Adequate lighting and proper ventilation was present in 75% AWCs. 66.6% of AWCs had adequate indoor space. Outdoor space was available in 45.8% AWCs and 41.7% AWCs had storage space. 91.7% AWCs had toilet facility and all AWCs had electricity supply. Piped water supply was available in 75% AWCs. 25% AWCs lacked separate kitchen space. Chairs, table, mat, PSE material, growth charts, medicine kit and utensils were available in all the AWCs. MCP Card and posters were available in 95.8% AWCs. Salter weighing machine and adult weighing machine in working condition were present in 95.8% and 83.3% AWCs respectively. Conclusion: Even though there is improvement in the in infrastructure and logistic supplies in the recent years, still it is not satisfactory i.e. 100%. Strengthening of the basic infrastructure of AWCs should be emphasized.