Rainwater Harvesting, Risk Assessment and Utilization in Kosice-city, Slovakia

Káposztásová, Daniela; Vranayová, Zuzana; Markovič, Gabriel; Purcz, Pavol

doi:10.1016/j.proeng.2014.11.439

Cited by 16 publications

(10 citation statements)

References 3 publications

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“…Taking the above into account, research was conducted in order to determine the efficiency and cost-effectiveness of rainwater harvesting systems in facilities located in Poland and Slovakia. So far, research has been carried out mainly for single-family buildings [37,38] or multi-family buildings [39]. Therefore, two academic facilities with a large daily demand for water for toilet flushing have been selected.…”

Section: Introductionmentioning

confidence: 99%

An Analysis of the Effectiveness of Two Rainwater Harvesting Systems Located in Central Eastern Europe

Stec

Zeleňáková

2019

Water

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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 assessed. The research was extended by the sensitivity analysis, which allowed determination of the impact of changes in individual cost components on the financial effectiveness of the investments considered. The results obtained clearly showed that the implementation of RWHS in the dormitory in Rzeszów was unprofitable for all tank capacities tested, and the payback period significantly exceeded the period of 30 years accepted for the analysis. Completely different results were obtained for RWHS in a dormitory located in the city of Košice, for which the financial ratios NPV (Net Present Value) and DPP (Discounted Payback Period) were very favorable. It was also confirmed by the results of the sensitivity analysis. The use of rainwater for toilet flushing caused that it was possible to achieve water savings of an average of 29% and 18%, respectively, for facilities located in Slovakia and Poland. The results of the research have a practical aspect and can provide an indication for potential investors and managers of academic facilities, similar to those analyzed in the article. Taking into account that in many countries water and sewage rates are significantly higher than in Poland and Slovakia, the cost-effectiveness of using the analyzed installation options in these countries could be even higher.

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Section: Introductionmentioning

confidence: 99%

An Analysis of the Effectiveness of Two Rainwater Harvesting Systems Located in Central Eastern Europe

Stec

Zeleňáková

2019

Water

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“…Furthermore, 21% and 27% of the area studied were of moderate and poor suitability, while the remaining 24% were not suitable at all.A possible solution for addressing the issue of water scarcity is to find suitable and sustainable substitutes for drinking water. Drinking water used for some purposes, such as in agricultural activities, could be substituted with harvested rainwater [5]. Rainwater conservation is the action of the direct gathering of rainfall, collected for direct usage, and recharged into the groundwater.…”

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confidence: 99%

Suitable Site Selection for Rainwater Harvesting and Storage Case Study Using Dohuk Governorate

Ibrahim

Rasul

Hamid

et al. 2019

Water

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The Middle East is an inherently dry zone. It has experienced severe drought for the last seven years, and climate change has made the situation worse. The Dohuk governorate has been suffering from an appalling water crisis. One possible way of relieving this water crisis is by properly harvesting the rainwater. Rainwater harvesting is a widely used method of storing rainwater in the countries presenting with drought characteristics. Several pieces of research have derived and developed different criteria and techniques to select suitable sites for harvesting rainwater. The main aim of this research was to identify and select suitable sites for the potential erection of dams, as well as to derive a model builder in ArcMap 10.4.1. The model combined several parameters, such as slope, runoff potential, land cover/use, stream order, soil quality, and hydrology to determine the suitability of the site for harvesting rainwater. To compute the land use/cover categories, the study depended on Landsat image data from 2018. Supervised classification was applied using the ENVI 5 software, while the slope mapping and drainage order were extracted using a digital elevation model. Inverse distance weighting (IDW) was used for the spatial interpolation of the rain data. The results demonstrated that suitable areas for water harvesting, are located in the middle and northern part of the research area, and in intensively cultivated zones. The main soil texture in these suitable sites was loam, while the rainfall rate amounted to 750 to 900 mm. This research shows that 15% and 13% of the area studied can be categorized as having excellent and good suitability for water harvesting, respectively. Furthermore, 21% and 27% of the area studied were of moderate and poor suitability, while the remaining 24% were not suitable at all.

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“…Rozwiązania te opierają się na idei zagospodarowania wód opadowych w obrębie zlewni, w której powstają, bądź spłaszczenia hydrogramu odpływu tych wód ze zlewni do odbiornika. W pierwszym przypadku zastosowanie mogą znaleźć systemy zakładające infiltrację spływających z odwadnianej powierzchni wód opadowych do gruntu [1,29] oraz instalacje gospodarczego wykorzystania wód deszczowych [8,13]. Z kolei w sytuacji, gdy konieczne jest odprowadzenie ścieków opadowych do odbiornika, wykonane mogą zostać systemy przeznaczone do ich okresowej retencji [7,21].…”

Section: Wprowadzenieunclassified

Analiza Swot Zastosowania Systemów Infiltracji Wód Opadowych Na Terenie Osiedli Mieszkaniowych

Kordana¹,

Słyś²

2016

ZNPRzBiS

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Obserwowany współcześnie dynamiczny rozwój sektorów budownictwa i transportu powoduje sukcesywne zwiększanie się udziału powierzchni utwardzonych w całkowitej powierzchni zlewni. Następstwem tego procesu jest wzrost ilości wód deszczowych ujmowanych w systemy kanalizacji krytej i odprowadzanych do odbiornika, co skutkuje częstym przeciążaniem istniejących kolektorów kanalizacyjnych oraz pogorszeniem stanu rzek. Zapobieganie tym zjawiskom jest możliwe tylko w przypadku stosowania zrównoważonych systemów zagospodarowania wód opadowych, do których zaliczane są między innymi systemy infiltracyjne. Możliwości aplikacji urządzeń rozsączających wody deszczowe są jednak uzależ-nione od szeregu czynników, takich jak warunki gruntowo-wodne czy charakterystyka ilościowa i jakościowa odprowadzanego do gruntu medium. W celu określe-nia strategii rozwoju systemów przeznaczonych do infiltracji wód opadowych przeprowadzono analizę mocnych i słabych stron tych systemów, jak również potencjalnych szans i zagrożeń wynikających z ich implementacji na terenie osiedli mieszkaniowych. Jako narzędzie wykorzystano analizę SWOT/TOWS, będącą jedną z metod planowania strategicznego. Przeprowadzone badania wskazują na duży potencjał rozpatrywanych systemów, który wynika ze sprzyjających ich rozwojowi szans, co powoduje potrzebę możliwie największego wykorzystania tych szans przy pomocy mocnych stron systemów infiltracyjnych. Aby było to możli-we, konieczne jest jednak podjęcie działań ukierunkowanych na osłabienie wad systemów infiltracyjnych oraz rozwój świadomości ekologicznej mieszkańców, gdyż tylko kompleksowe podejście do kwestii rozsączania wód deszczowych pozwoli w pełni wykorzystać atuty urządzeń infiltracyjnych.

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Rainwater Harvesting, Risk Assessment and Utilization in Kosice-city, Slovakia

Cited by 16 publications

References 3 publications

An Analysis of the Effectiveness of Two Rainwater Harvesting Systems Located in Central Eastern Europe

An Analysis of the Effectiveness of Two Rainwater Harvesting Systems Located in Central Eastern Europe

Suitable Site Selection for Rainwater Harvesting and Storage Case Study Using Dohuk Governorate

Analiza Swot Zastosowania Systemów Infiltracji Wód Opadowych Na Terenie Osiedli Mieszkaniowych

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