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Journal articles on the topic 'RWHS'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Kakoulas, Dimitrios A., Spyridon K. Golfinopoulos, Dimitra Koumparou, and Dimitrios E. Alexakis. "The Effectiveness of Rainwater Harvesting Infrastructure in a Mediterranean Island." Water 14, no. 5 (2022): 716. http://dx.doi.org/10.3390/w14050716.

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Rainwater Harvesting system (RWHs) can be considered as an alternative water resource in the era of the climate crisis. This research aims to study the effectiveness of a RWHs for domestic non-potable use and the water demand of the community in a Mediterranean site (Chios island, Greece). A water balance model is applied to simulate the behavior of a rainwater tank and calculate the daily water savings. The analysis correlates rainwater tank capacity, catchment area and population. The operation of the rainwater collection system has been calculated for seven years. In order to assess the inv

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Martínez-Acosta, Luisa, Alvaro Alberto López-Lambraño, and Alvaro López-Ramos. "Design Criteria for Planning the Agricultural Rainwater Harvesting Systems: A Review." Applied Sciences 9, no. 24 (2019): 5298. http://dx.doi.org/10.3390/app9245298.

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The growth in world population demands greater food production. Meanwhile, rainwater-harvesting systems (RWHS) have been used since ancient times to guarantee water supply for agriculture. Therefore, this research study reviews the conditions related to RWHS, focusing on rural communities. In this review, the methodologies used for rainwater harvesting (RWH) were determined, considering the characteristics for each of the hydraulic structures to guarantee runoff collection according to the basin area. Finally, the most relevant design parameters that should be considered in the planning and in

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Martínez-Castrejón, Mariana, Enrique J. Flores-Munguía, Oscar Talavera-Mendoza, et al. "Water Efficiency Households Retrofit Proposal Based on Rainwater Quality in Acapulco, Mexico." Water 14, no. 18 (2022): 2927. http://dx.doi.org/10.3390/w14182927.

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Climate change, urbanization, and population growth, particularly in urban areas such as Acapulco, Mexico, put pressure on water availability, where although surrounded by water, the inhabitants lack enough good-quality water, especially in the rainy season. In addition, water scarcity, socioeconomic factors, and infrastructure problems limit the satisfaction of water demand in this context, e.g., operational issues in the water treatment plants and problems in the distribution network caused by hurricanes. The objectives of this research were: (i) to determine the rainwater quality in Acapulc

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Khanal, Ghanashyam, Anusha Thapa, Niranjan Devkota, and Udaya Raj Paudel. "A review on harvesting and harnessing rainwater: an alternative strategy to cope with drinking water scarcity." Water Supply 20, no. 8 (2020): 2951–63. http://dx.doi.org/10.2166/ws.2020.264.

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Abstract Currently available sources of water face extreme pressures around the globe because of oblivious human activities as well as changing climate. The rainwater harvesting system (RWHS) carries a huge potential to enhance surface and groundwater resources in regions having a poor water supply. Recently, several countries have started to promote the updated implementation of such practice to tackle the problem of growing water demand. These considerations motivated our enthusiasm for looking at its current circumstances and the possibility of RWHS in the future. In this regard, the study

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Liu, Mei, and Liping Cui. "Optimization of Domestic Rainwater Harvesting Systems in Guangxi and Guangdong Provinces, Southern China." Innovation in Science and Technology 3, no. 3 (2024): 21–30. http://dx.doi.org/10.56397/ist.2024.05.03.

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The optimization of domestic rainwater harvesting systems (RWHS) in the rural areas of Guangxi and Guangdong provinces, Southern China, offers a viable solution to address water scarcity and enhance water security. This research focuses on designing, implementing, and evaluating RWHS tailored to local climatic, topographical, and social conditions. By capturing and storing rainwater, these systems reduce reliance on groundwater, improve local water management, and provide a sustainable water source for domestic and agricultural use. Key components of an effective RWHS include rooftop catchment

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Mun, Jung Soo, Ree Ho Kim, and Moo Young Han. "The Effects of Catchment Materials and Treatment Train on Rainwater Quality in a Rainwater Harvesting System." Materials Science Forum 724 (June 2012): 451–54. http://dx.doi.org/10.4028/www.scientific.net/msf.724.451.

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Recently the interest on rainwater harvesting has been increasing and the installation of rainwater harvesting system (RWHS) has been spread. However, little information is available about influences of catchment materials and system configurations on rainwater quality. This study was performed to examine the rainwater quality according to catchment conditions and system configurations in a roof RWHS. The catchment area of the building #39 in Seoul National University, Seoul, South Korea is 3,652 m2 and consists of the concrete roof, roof garden and marble terrace. RWHS provides water for toil

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Bouzina, Adlane, Ali Belmeziti, and Gouvello de. "How to improve inhabitants' acceptance of rainwater harvesting systems? Application to an existing collective residence in northern Algeria." Journal of the Geographical Institute Jovan Cvijic, SASA, no. 00 (2024): 1. http://dx.doi.org/10.2298/ijgi230918001b.

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In Algeria, at the present time, there are no rainwater harvesting systems (RWHS) registered with the public authorities as an alternative to the public water supply. This is explained by numerous factors, the most important being inhabitants? acceptance. The aim of this article is to investigate the current level of acceptance of an RWHS as a viable method for backing up the public water supply system. Our hypothesis is that inhabitants? acceptance can be improved by the increasing awareness of the benefits of an RWHS. For the purposes of this study, an RWHS located in northern Algeria was de

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Chiu, Yie-Ru, Kamaleddin Aghaloo, and Babak Mohammadi. "Incorporating Rainwater Harvesting Systems in Iran’s Potable Water-Saving Scheme by Using a GIS-Simulation Based Decision Support System." Water 12, no. 3 (2020): 752. http://dx.doi.org/10.3390/w12030752.

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Rainwater harvesting systems (RWHSs) have been accepted as a simple and effective approach to ease the worsening of urban water stress. However, in arid and semiarid regions, a comprehensive method for promoting domestic RWHSs in a large-scale water-saving scheme that incorporates water consumption reducing equipment (WCRE) and gray water reuse (GWR), has not been well developed. For this, based on the case study of Guilan Province, Iran, this study addressed the temporal-spatial complex of rainfall and proposed a GIS-simulation-based decision support system (DSS). Herein, two scenarios, i.e.,

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M. Aminuddin, Normadihah, Yendo Afgani @ Eusoff, Nor Adeena Raslee, and Ahmad Puad Mat Som. "Consumer Awareness Towards Rainwater Harvesting System in Selangor, Malaysia." International Journal of Engineering & Technology 7, no. 4.34 (2018): 33. http://dx.doi.org/10.14419/ijet.v7i4.34.23576.

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Reusing water and implementing rainwater-harvesting system are an effective way to reduce the usage of treated water at home. A study on consumer’s awareness towards Rainwater Harvesting System (RWHS) in urban areas of Malaysia is less explored among researchers. This study was to identify the level of consumer’s awareness on RWHS among domestic water users in Gombak District, Selangor. Quantitative approaches were applied through individual distribution of structured questionnaires to 397 domestic water users in the study area from December 2016 to February 2017. The data was analyzed using S

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Bañas, Karen, Miguel Enrico Robles, and Marla Maniquiz-Redillas. "Stormwater Harvesting from Roof Catchments: A Review of Design, Efficiency, and Sustainability." Water 15, no. 9 (2023): 1774. http://dx.doi.org/10.3390/w15091774.

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Roof runoff is collected rainwater from a roof using a rainwater harvesting system (RWHS). The construction of an efficient RWHS requires a thorough analysis of the rainwater quality and the appropriate treatment process for its intended use. In line with this, a bibliometric and comprehensive review of studies related to roof rainwater harvesting was conducted. A corpus of 1123 articles was downloaded from the Scopus database and parsed through the CorText Manager to determine the relationships between keywords, journals, and topics related to rainwater harvesting. A comprehensive analysis wa

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Mostaffa, M. F., H. M. Noh, and S. M. S. Musa. "A case study: A SWOT analysis of small-scale rainwater harvesting system in Batu Pahat." IOP Conference Series: Earth and Environmental Science 1205, no. 1 (2023): 012082. http://dx.doi.org/10.1088/1755-1315/1205/1/012082.

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Abstract Rainwater harvesting is a common practice of storing water in a container before it will be used for other purposes. On a domestic scale, homeowners with a rainwater harvesting system (RWHS) installed in their houses faced challenges to maintain and use the stored water. Therefore, this study aims to identify strengths, weakness, opportunities, and threats (SWOT) of conventional domestic small-scale RWHS. A comprehensive opinion of the conventional domestic RWHS is gathered through a series of semi-structured interview with homeowners in Batu Pahat district. The result indicates the a

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Han, M. Y., and J. S. Mun. "Operational data of the Star City rainwater harvesting system and its role as a climate change adaptation and a social influence." Water Science and Technology 63, no. 12 (2011): 2796–801. http://dx.doi.org/10.2166/wst.2011.597.

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The Star City rainwater harvesting system (RWHS) was featured in the December, 2008, issue of Water 21. The article highlighted that the RWHS has a 3,000 m3 rainwater tank used in water saving, flood mitigation, and emergency response. Since then, many news media, public officials, and people from both South Korea and abroad have visited the RWHS. In this paper, two years of the system's operational data are presented and its role in short- and long-term climate change adaptation is investigated. The downstream sewer system has become safe for a 50-year rainfall without upgrading the existing

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Juiani, Siti Fairuz, Chun Kiat Chang, Choe Peng Leo, Hui Weng Goh, Wei Lun Ang, and Rania Fayiz Aburamadan. "Rainwater Harvesting System (RWHS) for buildings: A mini review on guidelines and potential as alternative water supply in Malaysia." IOP Conference Series: Earth and Environmental Science 1238, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1755-1315/1238/1/012001.

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Abstract Malaysia receives an abundance of rain annually (≈ 2400mm/year). The country, however, is not excused from water crises such as floods and water shortages. According to the National Water Services Commission (SPAN) data, Malaysia water consumption in year 2021 is 201 LCD and may encounter a water shortage crisis if the situation is not improved in the future. Rainwater harvesting (RWHS) has great potential in tackling water shortages. It can also combat water scarcity holistically and reduce dependency on treated water from dam reservoirs. RWHS is a sustainable alternative to tackle w

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Othman, Mazlina Alang, and Hasliza Zulkifli. "Rainfall Analysis for Rainwater Harvesting in Politeknik Ungku Omar." Jurnal Kejuruteraan 34, no. 3 (2022): 447–51. http://dx.doi.org/10.17576/jkukm-2022-34(3)-11.

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Rainwater Harvesting System (RWHS) is a collection and storage of rainwater for future use and have many benefits related to the economy, environment, technology, and society. Malaysia is well positioned to harvest rainwater because of number of rainy days in Malaysia is high and average of rainfall amount 2500 mm annually. Because of the effects of the topography of Peninsular Malaysia, rainfall distribution varies significantly. Thus, rainfall data analysis for rainwater harvesting potential should be made based on local climate and influences from the monsoon. The objective of this study wa

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Zabidi, Husnna Aishah, Hui Weng Goh, Chun Kiat Chang, Ngai Weng Chan, and Nor Azazi Zakaria. "A Review of Roof and Pond Rainwater Harvesting Systems for Water Security: The Design, Performance and Way Forward." Water 12, no. 11 (2020): 3163. http://dx.doi.org/10.3390/w12113163.

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Rapid urbanization, population explosion and climate change have threatened water security globally, regionally and locally. While there are many ways of addressing these problems, one of the innovative techniques is the recent employment of Sustainable Urban Drainage Systems (SUDS) which include rainwater harvesting systems (RWHS). Therefore, this paper reviews the design and component of two types of RWHS, the namely roof harvesting system (RHS) and the pond harvesting system (PHS). The performance in terms of quantity and quality of collected rainwater and energy consumption for RWHS with d

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Aryal, Mamata, Prayon Joshi, and Sudeep Thakuri. "Performance of rooftop rainwater harvesting system as a source of drinking water." International Journal of Environment 11, no. 1 (2022): 62–80. http://dx.doi.org/10.3126/ije.v11i1.45841.

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Rainwater Harvesting Systems (RWHSs) are increasingly being used as an alternative or supplementary source of water to curb the water supply deficit in the Kathmandu valley. The harvested rainwater is primarily used for non-potable purposes like flushing toilets and irrigation, but the knowledge on the use of rainwater for potable purpose is remarkably sparse. This study assesses the suitability of rainwater in terms of quantity and quality in a public school that adopts Rooftop RWHS as the source of drinking water. In this study, we observed that the volume of rainwater being harvested is suf

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Pimentel-Rodrigues, Carla, and Armando Silva-Afonso. "Rainwater Harvesting for Irrigation of Tennis Courts: A Case Study." Water 14, no. 5 (2022): 752. http://dx.doi.org/10.3390/w14050752.

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It has become evident that, during this century, climate change will continue, affecting all regions of the planet. The expected impacts over the next few decades may differ from region to region, with some areas becoming humid and others drier. In regions such as the Mediterranean basin, the main expected impacts of climate change will be prolonged droughts and an increase in the intensity and frequency of heavy rains. Measures of mitigation and adaptation are particularly important in urban environments, where more than half of the population lives, and rainwater harvesting systems (RWHS) ar

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Perera, Walgampolage Achintha Kalani, and Dhammika Nayoma Magana-Arachchi. "Microbial Diversity in Rainwater with Correspondence to Particulate Matter and Environmental Factors." Journal of Sustainability and Environmental Management 1, no. 4 (2022): 410–18. http://dx.doi.org/10.3126/josem.v1i4.50006.

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Microbial composition in rainwater has emerged as a trending research topic due to the increased use of rainwater harvesting systems (RWHS) worldwide. Studies have been conducted to analyze potentially pathogenic microorganisms in RWHS. However, the core focus in most papers has been on the rainwater collected in the storage tanks rather than the composition of microorganisms in fresh rainwater. Due to the microbial influence on air quality, this review dissects various studies that have identified the types of microorganisms in rainwater and their correspondence with atmospheric microbiota to

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Sonbay, Jachin Alpin, Azarya Bees, Ardin M. Nomnafa, Dionisius P. Muji, and Evang Edito Klakik. "Perencanaan Rainwater Harvesting System SMA Negeri 1 Taebenu Nusa Tenggara Timur." Eternitas: Jurnal Teknik Sipil 3, no. 2 (2024): 1–7. https://doi.org/10.30822/eternitas.v3i2.3242.

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Rainwater Harvesting System (RWHS) merupakan sebuah konsep sederhana dalam pemanfaatan sumber daya air, dengan menampung air hujan yang jatuh di atap dan dialirkan ke dalam bak penampung. Kebutuhan air non domestik pada bangunan sekolah dibutuhkan dalam jumlah besar mengingat pengguna air yang banyak. Dengan konsep RWHS diharapkan dapat memberikan solusi alternatif penggunaan air hujan di SMA Negeri 1 Taebenu. Berdasarkan hasil analisis neraca air pada SMA Negeri 1 Taebenu defisit air terjadi paling besar pada bulan Juli sebesar 0,61 liter/s. Berdasarkan nilai tersebut kemudian direncanakan ba

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Stec, Agnieszka, and Martina Zeleňáková. "An Analysis of the Effectiveness of Two Rainwater Harvesting Systems Located in Central Eastern Europe." Water 11, no. 3 (2019): 458. http://dx.doi.org/10.3390/w11030458.

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Decentralized water systems are perceived as solutions that not only save water, but also as a way to partially or completely become independent from centralized suppliers. Taking this into account, an analysis of the effectiveness of rainwater harvesting systems (RWHS) for toilet flushing in existing academic facilities located in Poland and in Slovakia was carried out. The tests took into account the different volumes of storage tanks collecting rainwater. On the basis of two financial ratios, namely Net Present Value and Discounted Payback Period, the profitability of these systems was also

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Kim, Ree Ho, Jung Hun Lee, Mik Yeong Kim, and Han Na Choi. "A Smart System Combining Rainwater and Treated Sewage for Use in Sports Complexes in Korea." Materials Science Forum 804 (October 2014): 135–38. http://dx.doi.org/10.4028/www.scientific.net/msf.804.135.

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Existing systems that provide an alternative water supply such as a sewage reuse system (SRS) or a rainwater harvesting system (RWHS) tend to experience a slight loss of efficiency through the separate use of their component systems. A smart system has been introduced that combines the stable water quality of an RWHS and the stable water quantity of an SRS for use in sports complexes in Korea, and selected monitoring results are presented here in terms of the quantity of water used. The system monitors the operating conditions and provides measurement data. It is designed to be remotely operat

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Antão-Geraldes, Ana M., Matheus Pinto, Maria João Afonso, António Albuquerque, Cristina Sousa Coutinho Calheiros, and Flora Silva. "Promoting Water Efficiency in a Municipal Market Building: A Case Study." Hydrology 10, no. 3 (2023): 69. http://dx.doi.org/10.3390/hydrology10030069.

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This study aimed to determine the water demand of a Municipal Market building to propose water use efficiency measures. The flushing cisterns have the highest water consumption (63.15%), followed by washbasins, restaurant and coffee shop taps, and hairdresser’s showerhead (31.64%). Therefore, the implementation of two main categories of solutions: reducing water consumption through the adoption of efficient devices and installing a rainwater harvesting system (RWHS) when drinking water quality is not required, was evaluated. These solutions were organized in four distinct scenarios: (1) Flushi

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Islam, Md Atikul, Abul Kalam Azad, Md Ali Akber, Masudur Rahman, and Indrojit Sadhu. "Effectiveness of solar disinfection (SODIS) in rural coastal Bangladesh." Journal of Water and Health 13, no. 4 (2015): 1113–22. http://dx.doi.org/10.2166/wh.2015.186.

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Scarcity of drinking water in the coastal area of Bangladesh compels the inhabitants to be highly dependent on alternative water supply options like rainwater harvesting system (RWHS), pond sand filter (PSF), and rain-feed ponds. Susceptibility of these alternative water supply options to microbial contamination demands a low-cost water treatment technology. This study evaluates the effectiveness of solar disinfection (SODIS) to treat drinking water from available sources in the southwest coastal area of Bangladesh. A total of 50 households from Dacope upazila in Khulna district were selected

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Ignacio, Malenab, Pausta, et al. "A Perception Study of an Integrated Water System Project in a Water Scarce Community in the Philippines." Water 11, no. 8 (2019): 1593. http://dx.doi.org/10.3390/w11081593.

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The Integrated Water System (IWS) offers alternative water and sanitation services that can potentially benefit rural communities experiencing water scarcity. The IWS described in this study comprises three systems: The Rainwater Harvesting System (RWHS), Water Treatment System (WTS), and Eco-Toilet System (ETS). RWHS and WTS make use of rainwater, which can be utilized for several domestic uses, especially during wet season. ETS has several benefits to users including promotion of environmental and public health, as well as food security. Despite the potential benefits of the IWS components,

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Qammar, Shamaima Wafa, Fayaz Ahmad Khan, and Rashid Rehan. "Evaluating the Potential of Roof Water Harvesting System for Drinking Water Supplies During Emergencies Under the Impacts of Climate Change: ‘A Case Study of Swat District, Pakistan’." Standards 5, no. 2 (2025): 11. https://doi.org/10.3390/standards5020011.

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It is well understood that climate change is a major cause of the environmental shifts that are significantly impacting human lives. The floods caused by climate change are not only occurring more frequently each year, but they also bring up the problem of access to clean water for drinking and other daily usage for the affected communities. The Swat district of the Khyber Pakhtunkhwa province in Pakistan is one of the impacted regions and the growing concern for clean water access is yet to be resolved. This study aims to propose a sustainable solution to water access during the emergencies,

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Matos, Cristina, Isabel Bentes, and Cristina Santos. "Rainwater Harvesting System for Industrial Buildings: The Case Study of Continental Advanced Antenna, Vila Real, Portugal." Sustainability 16, no. 11 (2024): 4657. http://dx.doi.org/10.3390/su16114657.

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Large industrial units generally consume considerable volumes of water for use by workers and sometimes in the manufacturing process, but on the other hand, they generally have large coverage areas that facilitate and enable the capture of large quantities of rainwater. Rainwater harvesting systems (RWHSs) are an alternative water supply with high potential for significant water and economic savings in buildings of this type, also with benefits for water resource sustainability. This paper presents a case study that refers to the design and economic viability determination of an RWHS to be ins

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Thebuwena, A. Chandana Hemantha J., S. M. Samindi M. K. Samarakoon, and R. M. Chandima Ratnayake. "On the Necessity for Improving Water Efficiency in Commercial Buildings: A Green Design Approach in Hot Humid Climates." Water 16, no. 17 (2024): 2396. http://dx.doi.org/10.3390/w16172396.

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Water, a fundamental and indispensable resource necessary for the survival of living beings, has become a pressing issue in numerous regions worldwide due to scarcity. Urban areas, where the majority of the global population resides, witness a substantial consumption of blue water, particularly in commercial buildings. This study investigates the potential for enhancing water efficiency within an ongoing high-rise office building construction situated in a tropical climate. The investigation utilizes the green building guidelines of leadership in energy and environmental design (LEED) through

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Cross, Sally, Alan Hart, Joanne Morgan, et al. "06-P022 Rwhs is a mouse model for Bochdalek congenital diaphragmatic hernia in humans." Mechanisms of Development 126 (August 2009): S126. http://dx.doi.org/10.1016/j.mod.2009.06.248.

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Ratnasari, Anisa, Arya Bhaskara Adiprabowo, Andhika Gilang Al Afgani, Atik Widiyanti, and Lily Oktavia. "Potential of rainwater harvesting in wilayah persekutuan Malaysia." Environmental and Toxicology Management 2, no. 2 (2022): 4–7. http://dx.doi.org/10.33086/etm.v2i2.3410.

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Although Malaysia has abundant water resources, some parts of Malaysia are currently facing water shortage problems. The increasing demand for water has sparked initiatives to seek alternative water supplies. Rainwater harvesting has been proposed by governments as part of the solution to alleviate the problem of water scarcity. Literature related to rainwater harvesting is available from a variety of sources. In this study, rainfall was analysed as a crucial factor affecting RWHS efficiency, rainwater potential at different zones for residential, industrial, and commercial. In addition, the s

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Räuchle, Charlotte. "Social Encounter by Experiment? Potentials and Pitfalls of Real-World Labs for Urban Planning." Urban Planning 6, no. 1 (2021): 208–20. http://dx.doi.org/10.17645/up.v6i1.3475.

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This article explores the potential of real-world labs (RWLs) and real-world experiments (RWEs) to be a fruitful addition to established approaches in urban planning in Germany. While transdisciplinary and transformative RWLs rooted in socio-ecological sustainability studies have become an important tool for experimenting with innovative solutions for environmental challenges in cities, RWLs aimed at improving social cohesion in neighbourhoods and fostering a communal life characterised by dialogue and solidarity are rare. To this latter aim, this article contributes with research experience f

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Adham, Ammar, Michel Riksen, Rasha Abed, Sameer Shadeed, and Coen Ritsema. "Assessing Suitable Techniques for Rainwater Harvesting Using Analytical Hierarchy Process (AHP) Methods and GIS Techniques." Water 14, no. 13 (2022): 2110. http://dx.doi.org/10.3390/w14132110.

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The objective of this study is to produce suitability maps for potential rainwater harvesting techniques (RWHT) in the West Bank (WB), Palestine. These techniques aim to reduce water scarcity, which is a major problem for the conservation of water resources in the area. Based on literature reviews and expert recommendations, seven RWHts were selected (runoff basin system, contour ridges, cisterns, eyebrow terrace, check dam, on-farm pond, and bench terraces). Analysis methods performed in the Arc GIS environment include spatial analysis and data reclassification. Other calculations include mul

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Kusumastuti, Cilcia, Herry Pintardi Chandra, Kristanto Wibisono, and Antonius Christopher Hartono. "Eco Drainage System for Surface Runoff Reduction in Indonesia." Civil Engineering Dimension 21, no. 1 (2019): 29–35. http://dx.doi.org/10.9744/ced.21.1.29-35.

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Sustainable urban drainage systems (SUDS) or eco-drainage system has been implemented in developed countries. The aims of the construction of the system are: to minimize surface runoff by capturing and temporarily retain it, to improve the quality of surface runoff, to infiltrate stormwater, to increase evapotranspiration, and to enhance landscape aesthetic value. Learning from the success of the implementation of SUDS in developed countries, the paper presents a model of eco-drainage system for residential area in Indonesia, which consists of rainwater harvesting system (RWHS) and retention p

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Di Chiano, Maria Gloria, Mariana Marchioni, Anita Raimondi, Umberto Sanfilippo, and Gianfranco Becciu. "Probabilistic Approach to Tank Design in Rainwater Harvesting Systems." Hydrology 10, no. 3 (2023): 59. http://dx.doi.org/10.3390/hydrology10030059.

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Storage tanks from rainwater harvesting systems (RWHs) are designed to provide flow equalization between rainfall and water demand. The minimum storage capacity required to take into account the maximum variations of stored water volumes, i.e., the active storage, depends basically on the magnitude and the variability of rainfall profiles and the size of the demand. Given the random nature of the variables involved in the hydrological process, probability theory is a suitable technique for active storage estimation. This research proposes a probabilistic approach to determine an analytical exp

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Nanteza, Jamiat, Brian Thomas, Jesse Kisembe, Rhoda Nakabugo, Paul Isolo Mukwaya, and Mathew Rodell. "A Google Earth-GIS based approach to examine the potential of the current rainwater harvesting practices to meet water demands in Mityana district, Uganda." PLOS Water 1, no. 11 (2022): e0000045. http://dx.doi.org/10.1371/journal.pwat.0000045.

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Rainwater harvesting (RWH) has become an integral part of global efforts to improve water access. Despite the increasing adoption of RWH in Uganda, there remains a significant knowledge gap in the assessment of RWH systems to meet water demands. In this study, a simplified methodology to estimate rainwater harvesting potential (RWHP) as a function of mean seasonal rainfall and rooftop area, generated using Google Earth and GIS tools is applied. Desired tank storage (DTS) capacities based on user population, demand and dry period lengths, were compared with RWHP to assess whether rooftop areas

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Mat Daud, Nurhidayati, Nur Fikriah Daud, Amalina Amirah Abu Bakar, Noraziyan Abd Aziz, Sabariah Badrealam, and Zuraisah Dollah. "Performance of a Rainwater Harvesting Tank Under Under Varying Non-Potable Demand: Case Study in Kubang Semang, Penang." Jurnal Kejuruteraan 35, no. 6 (2023): 1481–86. http://dx.doi.org/10.17576/jkukm-2023-35(6)-21.

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Rapid development and climate change has endangered the availability of water resources worldwide. This study look into the potential of the applying a rainwater harvesting system (RWHS) for non- potable water usage in a doublestorey residential terrace house using Tangki NAHRIM 2.0 (TN2.0). TN2.0 is a web application that adopt the yield-after-spillage (YAS) convention to identify the optimum rainwater tank size. It is found that for a house of size 86.86 m<sup>2</sup>, the optimum tank size is 2 m<sup>3</sup> with water-saving and storage efficiency values of 51% and

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Willy, Daniel Kyalo, and Arnim Kuhn. "Technology Adoption Under Variable Weather Conditions — The Case of Rain Water Harvesting in Lake Naivasha Basin, Kenya." Water Economics and Policy 02, no. 02 (2016): 1650001. http://dx.doi.org/10.1142/s2382624x16500016.

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This paper applies a parametric econometric duration model (log–logistic) to analyze the duration of adoption of rain water harvesting techniques (RWHTs) among smallholder farmers in the Lake Naivasha basin, Kenya. The study utilizes survey data from 307 farm-households who are dependent on rain-fed agriculture in a region where rainfall has historically been relatively variable. In such circumstances, RWHT helps to stabilize water supply and help farmers manage weather-related risks. The current study seeks to identify constraints to the spread of RWHTs by exploring how rainfall variability i

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Tsai, Hsin-Yuan, Chia-Ming Fan, and Chao-Hsien Liaw. "Identifying the Layout of Retrofitted Rainwater Harvesting Systems with Passive Release for the Dual Purposes of Water Supply and Stormwater Management in Northern Taiwan." Water 16, no. 20 (2024): 2894. http://dx.doi.org/10.3390/w16202894.

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Due to its unique climate and geography, Taiwan experiences abundant rainfall but still faces significant water scarcity. As a result, rainwater harvesting systems (RWHSs) have been recognized as potential water resources within both water legal and green building policies. However, the effects of climate change—manifested in more frequent extreme rainfall events and uneven rainfall distribution—have heightened the risks of both droughts and floods. This underscores the need to retrofit existing RWHSs to function as stormwater management tools and water supply sources. In Taiwan, the use of si

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Zhang, Liang, He Li, TianFu Wang, RuiXin Wang, Long Cheng, and Gang Wang. "Real-World Study: A Powerful Tool for Malignant Tumor Research in General Surgery." Cancers 14, no. 21 (2022): 5408. http://dx.doi.org/10.3390/cancers14215408.

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Real-world study (RWS) is a method to draw conclusions by collecting and analyzing real-world data under a real clinical background. Compared with traditional randomized controlled trials (RCTs), RWSs are favored by clinicians because of their low cost and good extrapolation. In recent years, RWS has made remarkable achievements in the field of general surgery, especially in the drug treatment of advanced malignant tumors. Therefore, to further understand the main contents of the existing RWS and the application prospect of RWS in the future, this paper systematically reviews the clinical appl

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Islam, M. M., F. N. F. Chou, and C. H. Liaw. "Evaluation of dual-mode rainwater harvesting system to mitigate typhoon-induced water shortage in Taiwan." Water Science and Technology 62, no. 1 (2010): 140–47. http://dx.doi.org/10.2166/wst.2010.280.

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The water shortage of today's world is one of the most challenging problems and the world is looking for the best solution to reduce it. Some human made causes and also natural causes are liable for the shortage of the existing water supply system. In Taiwan, especially during typhoon, the turbidity of raw water increases beyond the treatment level and the plant cannot supply required amount of water. To make the system effective, a couple of days are needed and the shortage occurs. The purpose of this study is to solve this emergency shortage problem. A dual-mode Rainwater Harvesting System (

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Daud, N. M., N. N. Mahiran, A. K. Ruslan, et al. "Effect of roof size on the rainwater harvesting tank sizes and performances using Tangki NAHRIM 2.0." IOP Conference Series: Earth and Environmental Science 920, no. 1 (2021): 012035. http://dx.doi.org/10.1088/1755-1315/920/1/012035.

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Abstract Global warming and increasing population have direct impacts on water demand all over the world. Usage of potable water in Malaysia is high if compared with other countries and the source of potable water is mainly surface water. Rainwater harvesting is one of the popular alternatives to water resources around the world. However, even Malaysia is a country with an abundance of rainfall, rainwater harvesting is still unpopular. Different size of houses has different roof sizes which will subsequently require different sizes of rainwater tanks. This study utilized Tangki NAHRIM 2.0 (TN2

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Setyoningsih, Dian, Retno Adriyani, Khuliyah Candraning Diyanah, and Muhammad Zamzami Elamin. "High Incidence of Contact Dermatitis in Communal Rainwater Harvesting Users in a Rural Area of Sampang, Madura, East Java, Indonesia." Tropical Aquatic and Soil Pollution 3, no. 1 (2023): 109–19. http://dx.doi.org/10.53623/tasp.v3i1.230.

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Marparan village in Sampang, Indonesia uses a communal rainwater harvesting system (RWHS) for collecting water during the dry season. This study aimed to assess the quality of the water in the communal rainwater catchment pond (CRHP) and investigate the occurrence of contact dermatitis among the community members. The research followed an observational approach with a cross-sectional design, involving 50 individuals randomly selected from the user community of the CRHP for sanitation hygiene purposes. Water samples were collected from the CRHP and analyzed for physical characteristics, pH leve

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Słyś, Daniel, and Agnieszka Stec. "Centralized or Decentralized Rainwater Harvesting Systems: A Case Study." Resources 9, no. 1 (2020): 5. http://dx.doi.org/10.3390/resources9010005.

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World population growth, climate changes, urbanization, and industrialization have all had a negative impact on natural resources, including water resources. Excessive exploitation and pollution have caused more and more regions to have problems with access to fresh water. Rainwater is perceived as a valuable alternative source of water that is most often used in a hybrid system supplementing tap water. Considering the possibilities of designing a rainwater harvesting system as a decentralized or central system, this research was undertaken to determine the hydraulic and financial efficiency o

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Stec, Agnieszka, Daniel Słyś, Przemysław Ogarek, et al. "Assessment of Possibilities of Using Local Renewable Resources in Road Infrastructure Facilities—A Case Study from Poland." Energies 17, no. 24 (2024): 6351. https://doi.org/10.3390/en17246351.

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The rising demand for water and energy is driving the overuse of natural resources and contributing to environmental degradation. To address these challenges, the focus has shifted to low- and zero-emission technologies that utilize alternative sources of water and energy. Although such systems are commonly applied in residential, commercial, and industrial buildings, facilities along transportation routes generally depend on grid connections. This study aimed to enhance operational independence and reduce environmental impacts by modernizing the Rest Area Stobierna (RAS) along Poland’s S19 ex

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Cahyono, Muhammad. "Optimizing rainwater harvesting systems for the dual purposes of water supply and runoff capture with study case in Bandung Area, West Java." IOP Conference Series: Earth and Environmental Science 1065, no. 1 (2022): 012050. http://dx.doi.org/10.1088/1755-1315/1065/1/012050.

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Abstract Rainwater harvesting (RWH) systems use runoff to meet water supply demand and may also benefit runoff reduction. We develop the Rainwater Analysis and Simulation Program (RASP) model to simulate an RWH system using storage volume, roof area, irrigated area, and water demand as inputs. A cost-benefit model of RWH was developed with subject to reliability target of water supply and runoff capture in each simulation. Near-optimal solutions were identified for each case using a constrained nonlinear programming algorithm. We apply the model to evaluate the RWH system in Bandung Area, West

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Nana, Jean Bosco, Hassan M. Abd El Baki, and Haruyuki Fujimaki. "Designing an Economical Water Harvesting System Using a Tank with Numerical Simulation Model WASH_2D." Agronomy 14, no. 11 (2024): 2466. http://dx.doi.org/10.3390/agronomy14112466.

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Newly incorporated module into the WASH_2D model has enabled simulating a rainwater harvesting system (RWHS) using a tank. The incorporated module in WASH_2D was tested for two field experiments to determine the optimal tank capacity and cultivated area that give the highest net income for farmers. The first experiment was composed of treatments A, B, and C having the same cultivated and harvested areas (plastic sheets) of 24 m2 and 12.5 m2, respectively. The capacity of the tanks for treatments A, B, and C was set at 500, 300, and 200 L, corresponding to storability of 21, 13, and 8 mm, respe

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Praveen, Talari, M. Anirudh, M. Sairam, and Varun Jebakumar K. "IIASRH: An Integrative IoT Approach for Smart Rainwater Harvesting." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 11, no. 2 (2021): 1–5. https://doi.org/10.35940/ijitee.A9585.1211221.

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Rainwater harvesting is one of the oldest practices used to conserve and optimize water resources. Nowadays, there are a lot of public and private facilities which have well-constructed Rainwater Harvesting systems. Still, they usually can't test the quality of the water preserved and has no mechanism to purify the impure content to make them consumable. Many known techniques are primitive and conventional for today's standards. The existing systems don't provide connective features, water treatment or contingency measures to counteract any problem. Usually, these systems are integ

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Akbarimehr, Davood, Alireza Rahai, Abolfazl Eslami, and Moses Karakouzian. "Deformation Characteristics of Rubber Waste Powder–Clay Mixtures." Sustainability 15, no. 16 (2023): 12384. http://dx.doi.org/10.3390/su151612384.

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With the increasing accumulation of rubber waste, the potential reuse of rubber fillers offers a promising solution to enhance the engineering properties of low-plasticity soils while promoting environmental sustainability. In this study, the effect of rubber waste powders (RWPs) on the consolidation and deformation properties of low-plasticity clay soil (CS) was investigated using a fully automated consolidation testing procedure for clay–rubber mixtures. The study involved adding 2% up to 30% RWPs to Tehran clay, and various parameters were evaluated through consolidation, compaction, and un

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Jeyakrishnan, V., and K. Umashankar. "Factors affecting consumers’ willingness to join (WTJ) and willingness to pay (WTP) for rain water harvesting system (RWHS) for household needs: a case study in the northern part of Sri Lanka." Tropical Agricultural Research 27, no. 1 (2016): 75. http://dx.doi.org/10.4038/tar.v27i1.8155.

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Saverno, Kimberly, Loretta Nastoupil, Bruce Feinberg, et al. "Real-World Effectiveness of Tafasitamab (Tafa) for the Treatment of Relapsed/Refractory Diffuse Large B-Cell Lymphoma (R/R DLBCL) in the United States." Blood 144, Supplement 1 (2024): 2375. https://doi.org/10.1182/blood-2024-193264.

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Introduction: Tafa is a CD19-targeting immunotherapy indicated in combination with lenalidomide (len) for the treatment of R/R DLBCL in adult patients (pts) ineligible for autologous stem cell transplantation. To date, few studies have examined tafa in a US real-world setting, especially from a community practice perspective. We presented results from one such real-world study (RWS), but the limited median follow-up time of 6.5 months precluded robust evaluations of the clinical benefits of tafa (Saverno K, et al. Blood. 2023;142(suppl 1):265). Herein, we examined the effectiveness of tafa amo

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Franck, Linda S., Andrea Scheurer-Monaghan, Caleb P. Bupp, et al. "Healthcare Professionals’ Attitudes toward Rapid Whole Genome Sequencing in Pediatric Acute Care." Children 9, no. 3 (2022): 357. http://dx.doi.org/10.3390/children9030357.

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We aimed to characterize knowledge and attitudes about rapid whole genome sequencing (rWGS) implementation of a broad constituency of healthcare professionals at hospitals participating in a statewide initiative to implement rWGS for hospitalized neonates and children up to 18 years of age meeting clinical criteria for testing. We surveyed 307 healthcare professionals from eight hospitals about their knowledge and attitudes regarding rWGS. We examined survey internal reliability using exploratory factor analysis and associations between respondent characteristics and attitudes toward rWGS with

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